1 Leverage Limits

1.1 ESMA Margins
Leverage limits were set by ESMA at different levels depending on the underlying:

• 3.33% for major currency pairs; Major currency pairs are any combination of USD; CAD; EUR; GBP; CHF; JPY
• 5% for non-major currency pairs and major indices;
  • Non-major currency pairs are any combination that includes a currency not listed above, e.g. USD.CNH
  • Major indices are IBUS500; IBUS30; IBUST100; IBGB100; IBDE40; IBEU50; IBFR40; IBJP225; IBAU200
• 10% for non-major equity indices; IBES35; IBCH20; IBNL25; IBHK50
• 20% for individual equities

 1.2 Applied Margins - Standard Requirement

In addition to the ESMA Margins, IBKR (UK) establishes its own margin requirements (IB Margins) based on the historical volatility of the underlying, and other factors. We will apply the IB Margins if they are higher than those prescribed by ESMA.

Details of applicable IB and ESMA margins can be found here.

1.2.1 Applied Margins - Concentration Minimum

A concentration charge is applied if your portfolio consists of a small number of CFD positions, or if the three largest positions have a dominant weight. We stress the portfolio by applying a 30% adverse move on the three largest positions and a 5% adverse move on the remaining positions. The total loss is applied as the maintenance margin requirement if it is greater than the standard requirement.

1.3 Funds Available for Initial Margin

You can only use cash to post initial margin to open a CFD position. Realized CFD profits are included in cash and are available immediately; the cash does not have to settle first. Unrealized profits however cannot be used to meet initial margin requirements.

1.4 Automatic Funding of Initial Margin Requirements (F-segments)

IBKR (UK) automatically transfers funds from your main account to the F-segment of your account to fund initial margin requirements for CFDs.

Note however that no transfers are made to satisfy CFD maintenance margin requirements. Therefore if qualifying equity (defined below) becomes insufficient to meet margin requirements, a liquidation will occur even if you have ample funds in your main account. If you wish to avoid a liquidation you must transfer additional funds to the F-segment in Account Management.

2 Margin Close Out Rule

2.1 Maintenance Margin Calculations & Liquidations

ESMA requires IBKR to liquidate CFD positions latest when qualifying equity falls below 50% of the initial margin posted to open the positions. IBKR may close out positions sooner if our risk view is more conservative. Qualifying equity for this purpose includes cash in the F-segment (excluding cash in any other account segment) and unrealized CFD P&L (positive and negative).

The basis for the calculation is the initial margin posted at the time of opening a CFD position. In other words, and unlike margin calculations applicable to non-CFD positions, the initial margin amount does not change when the value of the open position changes.

2.1.1 Example

You have EUR 2000 cash in your CFD account. You want to buy 100 CFDs of XYZ at a limit price of EUR 100. You are first filled 50 CFDs and then the remaining 50. Your available cash reduces as your trades are filled:

*Equity equals Cash plus Unrealized P&L

The price increases to 110. Your equity is now 3000, but you cannot open additional positions because your available cash is still 0, and under the ESMA rules IM and MM remain unchanged:

 The price then drops to 95. Your equity declines to 1500 but there is no margin violation since it is still greater than the 1000 requirement:

The price falls further to 85, causing a margin violation and triggering a liquidation:

3 Negative Equity Protection

The ESMA Decision limits your CFD-related liability to the funds dedicated to CFD-trading. Other financial instruments (e.g. shares or futures) cannot be liquidated to satisfy a CFD margin-deficit.*

Therefore assets in the security and commodity segments of your main account, and non-CFD assets held in the F-segment, are not part of your capital at risk for CFD trading. However, all cash in the F-segment can be used to cover losses arising from CFD trading.

As Negative Equity Protection represents additional risk to IBKR, we will charge retail investors an additional financing spread of 1% for CFD positions held overnight. You can find detailed CFD financing rates here.

*Although we cannot liquidate non-CFD positions to cover a CFD deficit, we can liquidate CFD positions to cover a non-CFD deficit.

4 Incentives Offered to trade CFDs

The ESMA Decision imposes a ban on monetary and certain types of non-monetary benefits related to CFD trading. IBKR does not offer any bonus or other incentives to trade CFDs.

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.

若某账户内的总现金余额为负，则存在资金借入，借款需支付利息。 然而，有时即使账户的总现金余额为正，由于余额轧差或时间差，仍可能存在资金借入。 以下是最常见的例子：

Title:

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

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:

1.        Details of these calculations will be included in the next revision of this document.

2.        To continue observing margin in each account on a real-time basis, IB allocates each trade immediately (behind the scenes) however from the CTA and/or FA (or client’s) point of view, the final distribution of the execution at an average price typically occurs when the trade is executed in full, is canceled or at the end of day (whichever happens first).

3.       If no account has a ratio greater than 1.0 or multiple accounts are tied in the final step (i.e. ratio = 0.00), the first step is skipped and allocation of the first share/contract is decided via step two (i.e. random allocation).