Risk Navigator: Alternative Margin Calculator
Overview:
IB routinely reviews margin levels and will implement changes which serve to increase requirements above statutory minimums as market conditions warrant. To assist clients with understanding the effects of such changes on their portfolio, a feature referred to as the "Alternative Margin Calculator" is provided within the Risk Navigator application. Outlined below are the steps for creating a “what-if” portfolio for the purpose of determining the impact of such margin changes.
Step 1: Open a new “What-if” portfolio
From the Classic TWS trading platform, select the Analytical Tools, Risk Navigator, and then Open New What-If menu options (Exhibit1).
Exhibit 1
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From the Mosaic TWS trading platform, select New Window, Risk Navigator, and then Open New What-If menu options.
Step 2: Define starting portfolio
A pop-up window will appear (Exhibit 2) from which you will be prompted to define whether you would like to create a hypothetical portfolio starting from your current portfolio or a newly created portfolio. Clicking on the "yes" button will serve to download existing positions to the new “What-If” portfolio.
Exhibit 2
Clicking on the "No" button will open up the “What – If” Portfolio with no positions.
Risk Dashboard
The Risk Dashboard is pinned along the top of the product tab-sets, and is and is available for what-if as well as active portfolios. The values are calculated on demand for what-if portfolios. The dashboard provides at-a-glance account information including:
1) Net Liquidation Value: The total Net Liquidation Value for the account
2) P&L: The total daily P&L for the entire portfolio
3) Maintenance Margin: Total current maintenance margin
4) Initial Margin: Total initial margin requirements
5) VAR: Shows the Value at risk for the entire portfolio
6) Expected Shortfall (ES): Expected Shortfall (average value at risk) is expected return of the portfolio in the worst case
Alternative Margin Calculator
The Alternative Margin Calculator, accessed from the Margin menu and clicking on the Margin Mode (Exhibit 3), shows how the margin change will affect the overall margin requirement, once fully implemented.
Exhibit 3
Step 3: Selecting Margin Mode Settings
A pop-up window will appear (Exhibit 4) entitled Margin Mode Setting. You can use the drop-down menu in that window to change the margin calculations from Default (being the current policy) to the new title of the new Margin Setting (being the new margin policy). Once you have made a selection click on the OK button in that window.
Exhibit 4
Once the new margin mode setting is specified, the Risk Navigator Dashboard will automatically update to reflect your choice. You can toggle back and forth between the Margin Mode settings. Note that the current Margin Mode will be shown in the lower left hand corner of the Risk Navigator window (Exhibit 5).
Exhibit 5
Step 4: Add Positions
To add a position to the "What - If" portfolio, click on the green row titled "New" and then enter the underlying symbol (Exhibit 6), define the product type (Exhibit 7) and enter position quantity (Exhibit 8)
Exhibit 6
Exhibit 7
Exhibit 8
You can modify the positions to see how that changes the margin. After you altered your positions you will need to click on the recalculate icon (
) to the right of the margin numbers in order to have them update. Whenever that icon is present the margin numbers are not up-to-date with the content of the What-If Portfolio.
Margin Considerations for IB LLC Commodities Accounts
Introduction
As a global broker offering futures trading in 19 countries, IB is subject to various regulations, some of which retain the concept of margin as a single, end of day computation as opposed to the continuous, real-time computations IB performs. To satisfy commodity regulatory requirements and manage economic exposure in a pragmatic fashion, two margin computations are performed at the market close, both which must be met to remain fully margin compliant. An overview of these computations is outlined below.
Overview
All orders are subject to an initial margin check prior to execution and continuous maintenance margin checks thereafter. As certain products may be offered intraday margin at rates less than the exchange minimum and to ensure end of day margin compliance overall, IB will generally liquidate positions prior to the close rather than issue a margin call. If, however, an account remains non-compliant at the close, our practice is to issue a margin call, restrict the account to margin reducing transactions and liquidate positions by the close of the 3rd business day if the initial requirement has not then been satisfied.
In determining whether a margin call is required, IB performs both a real-time and regulatory computation, which in certain circumstances, can generate different results:
Real-Time: under this method, initial margin is computed using positions and prices collected at a common point in time, regardless of a product’s listing exchange and official closing time; an approach we believe appropriate given the near continuous trading offered by most exchanges.
Regulatory: under this method, initial margin is computed using positions and prices collected at the official close of regular trading hours for each individual exchange. So, for example, a client trading futures listed on each of the Hong Kong, EUREX and CME exchanges would have a requirement calculated based upon information collected at the close of each respective exchange.
Impact
Clients trading futures listed within a single country and session are not expected to be impacted. Clients trading both the daytime and after hours sessions of a given exchange or on exchanges located in different countries where the closing times don’t align are more likely to be impacted. For example, a client opening a futures contract during the Hong Kong daytime session and closing it during U.S. hours, would have only the opening position considered for purposes of determining the margin requirement. This implies a different margin requirement and a possible margin call under the revised computation that may not have existed under the current. An example of this is provided in the chart below.
Example
This example attempts to demonstrate how a client trading futures in both the Asia and U.S. timezones would be impacted were that client to trade in an extended hours trading session (i.e., outside of the regular trading hours after which the day's official close had been determined). Here, the client opens a position during the Hong Kong regular hours trading session, closes it during the extended hours session, thereby freeing up equity to open a position in the U.S. regular hours session. For purposes of illustration, a $1,000 trading loss is assumed. This example illustrates that the regulatory end of day computation may not recognize margin reducing trades conducted after the official close, thereby generating an initial margin call.
| Day | Time (ET) | Event |
Start Position |
End Position | IB Margin | Regulatory Margin | |||
| Equity With Loan | Maintenance | Initial | Overnight | Margin Call | |||||
| 1 | 22:00 | Buy 1 HHI.HK | None | Long 1 HHI.HK | $10,000 | $3,594 | $4,493 | N/A | N/A |
| 2 | 04:30 | Official HK Close | Long 1 HHI.HK | Long 1 HHI.HK | $10,000 | $7,942 | $9,927 | $4,493 | N/A |
| 2 | 08:00 | Sell 1 HHI.HK | Long 1 HHI.HK | None | $9,000 | $0 | $0 | $0 | N/A |
| 2 | 10:00 | Buy 1 ES | None | Long 1 ES | $9,000 | $2,942 | $3,677 | N/A | N/A |
| 2 | 17:00 | Official U.S. Close | Long 1 ES | Long 1 ES | $9,000 | $5,884 | $7,355 | $9,993 | Yes |
| 3 | 17:00 | Official U.S. Close | Long 1 ES | Long 1 ES | $9,000 | $5,884 | $7,355 | $5,500 | No |
Allocation of Partial Fills
How are executions allocated when an order receives a partial fill because an insufficient quantity is available to complete the allocation of shares/contracts to sub-accounts?
Overview:
From time-to-time, one may experience an allocation order which is partially executed and is canceled prior to being completed (i.e. market closes, contract expires, halts due to news, prices move in an unfavorable direction, etc.). In such cases, IB determines which customers (who were originally included in the order group and/or profile) will receive the executed shares/contracts. The methodology used by IB to impartially determine who receives the shares/contacts in the event of a partial fill is described in this article.
Background:
Before placing an order CTAs and FAs are given the ability to predetermine the method by which an execution is to be allocated amongst client accounts. They can do so by first creating a group (i.e. ratio/percentage) or profile (i.e. specific amount) wherein a distinct number of shares/contracts are specified per client account (i.e. pre-trade allocation). These amounts can be prearranged based on certain account values including the clients’ Net Liquidation Total, Available Equity, etc., or indicated prior to the order execution using Ratios, Percentages, etc. Each group and/or profile is generally created with the assumption that the order will be executed in full. However, as we will see, this is not always the case. Therefore, we are providing examples that describe and demonstrate the process used to allocate partial executions with pre-defined groups and/or profiles and how the allocations are determined.
Here is the list of allocation methods with brief descriptions about how they work.
· AvailableEquity
Use sub account’ available equality value as ratio.
· NetLiq
Use subaccount’ net liquidation value as ratio
· EqualQuantity
Same ratio for each account
· PctChange1:Portion of the allocation logic is in Trader Workstation (the initial calculation of the desired quantities per account).
· Profile
The ratio is prescribed by the user
· Inline Profile
The ratio is prescribed by the user.
· Model1:
Roughly speaking, we use each account NLV in the model as the desired ratio. It is possible to dynamically add (invest) or remove (divest) accounts to/from a model, which can change allocation of the existing orders.
Basic Examples:
Details:
CTA/FA has 3-clients with a predefined profile titled “XYZ commodities” for orders of 50 contracts which (upon execution) are allocated as follows:
Account (A) = 25 contracts
Account (B) = 15 contracts
Account (C) = 10 contracts
Example #1:
CTA/FA creates a DAY order to buy 50 Sept 2016 XYZ future contracts and specifies “XYZ commodities” as the predefined allocation profile. Upon transmission at 10 am (ET) the order begins to execute2but in very small portions and over a very long period of time. At 2 pm (ET) the order is canceled prior to being executed in full. As a result, only a portion of the order is filled (i.e., 7 of the 50 contracts are filled or 14%). For each account the system initially allocates by rounding fractional amounts down to whole numbers:
Account (A) = 14% of 25 = 3.5 rounded down to 3
Account (B) = 14% of 15 = 2.1 rounded down to 2
Account (C) = 14% of 10 = 1.4 rounded down to 1
To Summarize:
A: initially receives 3 contracts, which is 3/25 of desired (fill ratio = 0.12)
B: initially receives 2 contracts, which is 2/15 of desired (fill ratio = 0.134)
C: initially receives 1 contract, which is 1/10 of desired (fill ratio = 0.10)
The system then allocates the next (and final) contract to an account with the smallest ratio (i.e. Account C which currently has a ratio of 0.10).
A: final allocation of 3 contracts, which is 3/25 of desired (fill ratio = 0.12)
B: final allocation of 2 contracts, which is 2/15 of desired (fill ratio = 0.134)
C: final allocation of 2 contract, which is 2/10 of desired (fill ratio = 0.20)
The execution(s) received have now been allocated in full.
Example #2:
CTA/FA creates a DAY order to buy 50 Sept 2016 XYZ future contracts and specifies “XYZ commodities” as the predefined allocation profile. Upon transmission at 11 am (ET) the order begins to be filled3 but in very small portions and over a very long period of time. At 1 pm (ET) the order is canceled prior being executed in full. As a result, only a portion of the order is executed (i.e., 5 of the 50 contracts are filled or 10%).For each account, the system initially allocates by rounding fractional amounts down to whole numbers:
Account (A) = 10% of 25 = 2.5 rounded down to 2
Account (B) = 10% of 15 = 1.5 rounded down to 1
Account (C) = 10% of 10 = 1 (no rounding necessary)
To Summarize:
A: initially receives 2 contracts, which is 2/25 of desired (fill ratio = 0.08)
B: initially receives 1 contract, which is 1/15 of desired (fill ratio = 0.067)
C: initially receives 1 contract, which is 1/10 of desired (fill ratio = 0.10)
The system then allocates the next (and final) contract to an account with the smallest ratio (i.e. to Account B which currently has a ratio of 0.067).
A: final allocation of 2 contracts, which is 2/25 of desired (fill ratio = 0.08)
B: final allocation of 2 contracts, which is 2/15 of desired (fill ratio = 0.134)
C: final allocation of 1 contract, which is 1/10 of desired (fill ratio = 0.10)
The execution(s) received have now been allocated in full.
Example #3:
CTA/FA creates a DAY order to buy 50 Sept 2016 XYZ future contracts and specifies “XYZ commodities” as the predefined allocation profile. Upon transmission at 11 am (ET) the order begins to be executed2 but in very small portions and over a very long period of time. At 12 pm (ET) the order is canceled prior to being executed in full. As a result, only a portion of the order is filled (i.e., 3 of the 50 contracts are filled or 6%). Normally the system initially allocates by rounding fractional amounts down to whole numbers, however for a fill size of less than 4 shares/contracts, IB first allocates based on the following random allocation methodology.
In this case, since the fill size is 3, we skip the rounding fractional amounts down.
For the first share/contract, all A, B and C have the same initial fill ratio and fill quantity, so we randomly pick an account and allocate this share/contract. The system randomly chose account A for allocation of the first share/contract.
To Summarize3:
A: initially receives 1 contract, which is 1/25 of desired (fill ratio = 0.04)
B: initially receives 0 contracts, which is 0/15 of desired (fill ratio = 0.00)
C: initially receives 0 contracts, which is 0/10 of desired (fill ratio = 0.00)
Next, the system will perform a random allocation amongst the remaining accounts (in this case accounts B & C, each with an equal probability) to determine who will receive the next share/contract.
The system randomly chose account B for allocation of the second share/contract.
A: 1 contract, which is 1/25 of desired (fill ratio = 0.04)
B: 1 contract, which is 1/15 of desired (fill ratio = 0.067)
C: 0 contracts, which is 0/10 of desired (fill ratio = 0.00)
The system then allocates the final [3] share/contract to an account(s) with the smallest ratio (i.e. Account C which currently has a ratio of 0.00).
A: final allocation of 1 contract, which is 1/25 of desired (fill ratio = 0.04)
B: final allocation of 1 contract, which is 1/15 of desired (fill ratio = 0.067)
C: final allocation of 1 contract, which is 1/10 of desired (fill ratio = 0.10)
The execution(s) received have now been allocated in full.
Available allocation Flags
Besides the allocation methods above, user can choose the following flags, which also influence the allocation:
· Strict per-account allocation.
For the initially submitted order if one or more subaccounts are rejected by the credit checking, we reject the whole order.
· “Close positions first”1.This is the default handling mode for all orders which close a position (whether or not they are also opening position on the other side or not). The calculation are slightly different and ensure that we do not start opening position for one account if another account still has a position to close, except in few more complex cases.
Other factor affects allocations:
1) Mutual Fund: the allocation has two steps. The first execution report is received before market open. We allocate based onMonetaryValue for buy order and MonetaryValueShares for sell order. Later, when second execution report which has the NetAssetValue comes, we do the final allocation based on first allocation report.
2) Allocate in Lot Size: if a user chooses (thru account config) to prefer whole-lot allocations for stocks, the calculations are more complex and will be described in the next version of this document.
3) Combo allocation1: we allocate combo trades as a unit, resulting in slightly different calculations.
4) Long/short split1: applied to orders for stocks, warrants or structured products. When allocating long sell orders, we only allocate to accounts which have long position: resulting in calculations being more complex.
5) For non-guaranteed smart combo: we do allocation by each leg instead of combo.
6) In case of trade bust or correction1: the allocations are adjusted using more complex logic.
7) Account exclusion1: Some subaccounts could be excluded from allocation for the following reasons, no trading permission, employee restriction, broker restriction, RejectIfOpening, prop account restrictions, dynamic size violation, MoneyMarketRules restriction for mutual fund. We do not allocate to excluded accountsand we cancel the order after other accounts are filled. In case of partial restriction (e.g. account is permitted to close but not to open, or account has enough excess liquidity only for a portion of the desired position).
Footnotes:
Overview of Dividend Payments in Lieu ("PIL")
Payment In Lieu of a Dividend (“payment in lieu” or “PIL”) is a term commonly used to describe a cash payment to an account in an amount equivalent to the ordinary dividend. Generally, the amount paid is per share owned. In addition, the dividend in most cases is paid quarterly (i.e., four times per year). The dividend payment is classified as follows: (1) ordinary dividend; and/or (2) payment in lieu of dividend. The former designation is for a payment received directly from the issuer or its paying agent. The latter designation is used when a cash payment is received from other than the issuer or the issuer’s agent.
Payment in lieu of an ordinary dividend may be received when the shares have been bought on margin, or when the account has a subsequent margin loan due to borrowing money to facilitate the payment for additional purchases of shares or as the result of a withdrawal from the margin account. Payment in lieu of a dividend may also be received when shares are owed to the brokerage firm and have not been received by the dividend record date.
To better understand the difference between an ordinary dividend and a payment in lieu, we will explain the steps taken by IB to comply with US regulations. Each business day, the Firm analyzes the positions in each customer account, every borrow, every loan, every pledge of shares for each security held by its customers to determine how many shares are held on margin and the associated margin loan balances. For each security that is fully paid, we are required to segregate those shares in a good control location (for example, a depository or a US bank. See KB1964). For shares that are held as collateral for a margin loan we are allowed to hypothecate and re-hypothecate shares valued up to 140 percent of the total debit balance in the customer account (See KB1967).
While the guidelines noted above for segregation of securities are clear, there are exceptions that are outside of the Firm's control. For instance, through no fault of its own, IB may have a deficit in segregated shares due to customer activity that changes the Firm’s overall segregation requirement for a security. This may be for a variety of reasons including a delay in receiving shares that have been loaned out to a counterparty after segregation requirements are recalculated and the Firm has issued a stock loan recall, sales of securities by one or more customers that reduce or eliminate margin loans, the deposit of cash by customers that similarly reduce or eliminate margin loans, or a failure of a counterparty to deliver shares for a trade settlement.
Upon issuing a recall of shares loaned, rules permit the borrower of the shares up to 3 business days to return them. The borrower of the shares is required to return them to us when we issue a recall, but if by business day 3 the shares have not been returned, IB may then issue a buy-in notice to begin the process of regaining possession of the shares. An additional 3 business days is generally needed for the purchased shares to settle and be delivered to the firm. Similarly if a counterparty fails to deliver by settlement date, shares to IB to settle a customer purchase, IB can issue a buy-in notice but the purchase of such shares are also subject to trade settlement in 3 days.
To summarize, if by the record date of a dividend certain shares have not been delivered to IB, the Firm will be paid an amount of cash that is equivalent to the dividend amount, but IB will not receive a qualified dividend payment directly from the issuer. In such cases, the Firm will receive PIL and will have no choice but to allocate such payment in lieu to customer accounts. The firm first allocates PIL to those accounts who hold the shares as collateral for a margin loan. If, after PIL is allocated to all shareholders whose accounts are not fully paid, any portion of PIL remains to be paid, it is allocated on a pro-rata basis to each remaining client account.
Account holders should be aware that a PIL may have different tax consequences than an ordinary dividend and should consult a tax advisor to understand such differences and whether they apply to their particular situation.
Exposure Fee Monitoring via Account Window
The Account Window provides the high-level information suitable for monitoring one's account on a real-time basis. This includes key balances such as total equity and cash, the portfolio composition and margin balances for determining compliance with requirements and available buying power. This window also includes information relating to the most recently assessed exposure fee and a projection of the next fee taking into consideration current positions.
To open the Account Window:
• From TWS classic workspace, click on the Account icon, or from the Account menu select Account Window (Exhibit 1)
Exhibit 1
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• From TWS Mosaic workspace, click on Account from the menu, and then select Account Window (Exhibit 2)
Exhibit 2
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After opening the window, scroll down to the Margin Requirements section and click on the + sign in the upper-right hand corner to expand the section. There, the "Last" and "Estimated Next" exposure fees will be detailed for each of the product classifications to which the fee applies (e.g., Equity, Oil). Note that the "Last" balance represents the fee as of the date last assessed (note that fees are computed based upon open positions held as of the close of business and assessed shortly thereafter). The "Estimated Next" balance represents the projected fee as of the current day's close taking into account position activity since the prior calculation (Exhibit 3).
Exhibit 3.jpg)
To set the default view when the section is collapsed, click on the checkbox alongside any line item and those line items will remain displayed at all times.
Please see KB2275 for information regarding the use of IB's Risk Navigator for managing and projecting the Exposure Fee and KB2276 for verifying exposure fee through the Order Preview screen.
Important Notes
1. The Estimated Next Exposure Fee is a projection based upon readily available information. As the fee calculation is based upon information (e.g., prices and implied volatility factors) available only after the close, the actual fee may differ from that of the projection.
2. Exposure Fee Monitoring via the Account window is only available for accounts that have been charged an exposure fee in the last 30 days
Order Preview - Check Exposure Fee Impact
IB provides a feature which allows account holders to check what impact, if any, an order will have upon the projected Exposure Fee. The feature is intended to be used prior to submitting the order to provide advance notice as to the fee and allow for changes to be made to the order prior to submission in order to minimize or eliminate the fee.
The feature is enabled by right-clicking on the order line at which point the Order Preview window will open. This window will contain a link titled "Check Exposure Fee Impact" (see red highlighted box in Exhibit I below).
Exhibit I
Clicking the link will expand the window and display the Exposure fee, if any, associated with the current positions, the change in the fee were the order to be executed, and the total resultant fee upon order execution (see red highlighted box in Exhibit II below). These balances are further broken down by the product classification to which the fee applies (e.g. Equity, Oil). Account holders may simply close the window without transmitting the order if the fee impact is determined to be excessive.
Exhibit II
Please see KB2275 for information regarding the use of IB's Risk Navigator for managing and projecting the Exposure Fee and KB2344 for monitoring fees through the Account Window
Important Notes
1. The Estimated Next Exposure Fee is a projection based upon readily available information. As the fee calculation is based upon information (e.g., prices and implied volatility factors) available only after the close, the actual fee may differ from that of the projection.
2. The Check Exposure Fee Impact is only available for accounts that have been charged an exposure fee in the last 30 days
Tools Provided to Monitor and Manage Margin
IB provides a variety of tools and information intended to provide account holders with real-time details as to their state of margin compliance so as to avoid forced liquidations. These include the following:
a. Account Window – The account window is available for real-time account activity monitoring. This window will display key values that update with every price change in the portfolio. Included are account balances (cash, Net Liquidation Value, Equity with Loan Value), margin requirements (current, look ahead, overnight and post expiration), and balances available for trading (Available Funds and Excess Equity).
b. Preview Order/Check Margin – Prior to transmitting an order it can be previewed including the impact upon the margin requirement were the order to be executed. Additional information may be found in KB644.
c. Communications – IB will act to send out communications via TWS bulletin and/or email when the margin cushion in an account reaches 10% and a margin deficiency is therefore approaching. Account holders may also create their own margin alerts based upon the margin cushion which, when triggered, may generate email or text message alerts, TWS pop-up messages and flashing rows, and sound alarms.
d. Reports – A Daily Margin Report is made available with Account Management which reflects key margin balances and for portfolio margin accounts, requirements broken down by security class.
In addition, IB provides a Last to Liquidate feature within the TWS Account window that allows customers to specify the positions they would prefer IB liquidate last in the event of a margin deficit. While IB will attempt on a best efforts basis to adhere to such requests, account positions and market conditions may make doing so impractical and IB therefore reserves the right to liquidate in the sequence it deems most optimal.
Trading on margin in an IRA account
IRA accounts, by definition, may not use borrowed funds to purchase securities and must pay for all long stock purchases in full, may not carry short stock positions and may not hold a debit cash balance (in any currency). IRA accounts are eligible to carry futures and option contracts. In addition, IB offers a specific form of IRA account referred to as a “Margin IRA” that allows the account holder to trade with unsettled funds, carry American style option spreads and maintain long balances in multiple currency denominations.
For additional information regarding trading permissions in an IRA account, refer to KB188.
How to determine if you are borrowing funds from IBKR
If the aggregate cash balance in a given account is a debit, or negative, then funds are being borrowed and the loan is subject to interest charges. A loan may still exist, however, even if the aggregate cash balance is a credit, or positive, as a result of balance netting or timing differences. The most common examples of this are as follows:
1. Long vs. Short Currency Balances – accounts holders may borrow cash denominated in one currency if it can be secured by a credit balance in another. Take, for example, a USD base currency account holding a long USD settled cash balance of 10,000, a short EUR settled cash balance of 5,000, with a EUR.USD exchange rate of 1.38:1. Here, for statement reporting and interest computation purposes, the overall cash balance is a USD credit of 3,088 (10,000 – (5,000 * 1.38)). As each currency is subject to a unique funding and reinvestment arrangement, the short balance would be subject to financing costs based upon its benchmark rate and tier. This cost may be offset by any interest earned on the long balance based upon its benchmark rate and tier.
2. Gross Balances by Segment – IBKR’s Universal Account contains multiple sub accounts or segments, each of which holds positions and collateral which, for regulatory and customer protection purposes, may not be commingled. This separation does not allow for netting of balances across segments and a credit in one segment may therefore not offset a debit in another. Take, for example, an IBLLC account holding both securities and commodities positions with the securities segment maintaining a debit cash balance of USD 3,000 and the commodities segment a credit cash balance of USD 8,000. While the account holds an overall net credit balance of USD 5,000, the short balance would be subject to an interest charge which may be partially offset by any interest earned on the long balance.
3. Short Sales – a short sale is a margin transaction in which the account holder is borrowing stock rather than cash. While the proceeds from the short sale are credited to the cash balance of the account, these funds must be posted with the lender of the shares as collateral to secure their return. As a result, and in recognition of the fact that the loan transaction is subject to its own financing terms, the cash collateralizing the loan is excluded for the purpose of determining whether a margin loan exists.
As example, consider an account reporting net liquidating equity (all balances in USD) of 9,000 comprised of a credit cash balance of 4,000, long stock valued at 10,000 and short stock valued at 5,000. In order to determine whether funds are being borrowed to finance the long stock position, the 5,000 portion of the cash pledged as collateral to the lender of the shares is deducted from the overall 4,000 cash balance, resulting in a 1,000 debit. This debit is subject to interest charges and the cash underlying the stock borrow either an interest charge in the case of hard to borrow shares or a short stock rebate if the shares are easy to borrow and reinvestment rates sufficiently high.
4. Unsettled Funds - borrowings are determined based upon settled funds and the time frame by which payment is due or received for a given transaction is product specific (e.g., stocks generally settle in 3 business days, spot currencies 2 and derivatives 1). For statement and trading platform purposes, cash balances are reported on a trade date rather than settlement date basis, as if settlement has completed.
As a result, an account reporting a credit cash balance may, in fact, still be carrying a margin loan if that balance includes proceeds from the sale of stock purchased with borrowed funds awaiting settlement. Similarly, an account may report a trade date based debit balance, but not yet incurring a margin loan and interest charges, as the trade has not yet settled.
For additional information regarding interest calculations, please refer to How Interest is Calculated.
Overview of Margin Methodologies
Introduction
The methodology used to calculate the margin requirement for a given position is largely determined by the following three factors:
1. The product type;
2. The rules of the exchange on which the product is listed and/or the primary regulator of the carrying broker;
3. IBKR’s “house” requirements.
While a number of methodologies exist, they tend to be categorized into one of two approaches: rules based or risk based. Rules based methods generally assume uniform margin rates across like products, offer no inter-product offsets and consider derivative instruments in a manner similar to that of their underlying. In this sense, they offer ease of computation but oftentimes make assumptions which, while simple to execute, may overstate or understate the risk of an instrument relative to its historic performance. A common example of a rules based methodology is the U.S. based Reg. T requirement.
In contrast, risk based methodologies often seek to apply margin coverage reflective of the product’s past performance, recognize some inter-product offsets and seek to model the non-linear risk of derivative products using mathematical pricing models. These methodologies, while intuitive, involve computations which may not be easily replicable by the client. Moreover, to the extent that their inputs rely upon observed market behavior, may result in requirements that are subject to rapid and sizable fluctuation. Examples of risk based methodologies include TIMS and SPAN.
Regardless of whether the methodology is rules or risk based, most brokers will apply “house” margin requirements which serve to increase the statutory, or base, requirement in targeted instances where the broker’s view of exposure is greater than that which would satisfied solely by meeting that base requirement. An overview of the most common risk and rules based methodologies is provided below.
Methodology Overview
Risk Based
a. Portfolio Margin (TIMS) – The Theoretical Intermarket Margin System, or TIMS, is a risk based methodology created by the Options Clearing Corporation (OCC) which computes the value of the portfolio given a series of hypothetical market scenarios where price changes are assumed and positions revalued. The methodology uses an option pricing model to revalue options and the OCC scenarios are augmented by a number of house scenarios which serve to capture additional risks such as extreme market moves, concentrated positions and shifts in option implied volatilities. In addition, there are certain securities (e.g., Pink Sheet, OTCBB and low cap) for which margin may not be extended. Once the projected portfolio values are determined at each scenario, the one which projects the greatest loss is the margin requirement.
Positions to which the TIMS methodology is eligible to be applied include U.S. stocks, ETFs, options, single stock futures and Non U.S. stocks and options which meet the SEC’s ready market test.
As this methodology uses a much more complex set of computations than one that is rules based, it tends to more accurately model risk and generally offers greater leverage. Given its ability to offer enhanced leverage and that the requirements fluctuate and may react quickly to changing market conditions, it is intended for sophisticated individuals and requires minimum equity of $110,000 to initiate and $100,000 to maintain. Requirements for stocks under this methodology generally range from 15% to 30% with the more favorable requirement applied to portfolios which contain a highly diversified group of stocks which have historically exhibited low volatility and which tend to employ option hedges.
b. SPAN – Standard Portfolio Analysis of Risk, or SPAN, is a risk-based margin methodology created by the Chicago Mercantile Exchange (CME) that is designed for futures and future options. Similar to TIMS, SPAN determines a margin requirement by calculating the value of the portfolio given a set of hypothetical market scenarios where underlying price changes and option implied volatilities are assumed to change. Again, IBKR will include in these assumptions house scenarios which account for extreme price moves along with the particular impact such moves may have upon deep out-of-the-money options. The scenario which projects the greatest loss becomes the margin requirement. A detailed overview of the SPAN margining system is provided in KB563.
Rules Based
a. Reg. T – The U.S. central bank, the Federal Reserve Board, holds responsibility for maintaining the stability of the financial system and containing systemic risk that may arise in financial markets. It does this, in part, by governing the amount of credit that broker dealers may extend to customers who borrow money to buy securities on margin.
This is accomplished through Regulation T, or Reg. T as it is commonly referred, which provides for establishment of a margin account and which imposes the initial margin requirement and payment rules on certain securities transactions. For example, on stock purchases, Reg. T currently requires an initial margin deposit by the client equal to 50% of the purchase value, allowing the broker to extend credit or finance the remaining 50%. For example, an account holder purchasing $1,000 worth of securities is required to deposit $500 and allowed to borrow $500 to hold those securities.
Reg. T only establishes the initial margin requirement and the maintenance requirement, the amount necessary to continue holding the position once initiated, is set by exchange rule (25% for stocks). Reg. T also does not establish margin requirements for securities options as this falls under the jurisdiction of the listing exchange’s rules which are subject to SEC approval. Options held in a Reg.T account are also subject to a rules based methodology where short positions are treated like a stock equivalent and margin relief is provided for spread transactions. Finally, positions held in a qualifying portfolio margin account are exempt from the requirements of Reg. T.
Where to Learn More
Tools provided to monitor and manage margin
How to determine if you are borrowing funds from IBKR
Why does IBKR calculate and report a margin requirement when I am not borrowing funds?
