IEX Discretionary Peg Order


IEX offers a Discretionary Peg™ (D-Peg™) order type which is a non-displayed order that is priced at either the National Best Bid (NBB for buys) or National Best Offer (NBO for sells). D-Peg™ orders passively rest on the book while seeking to access liquidity at a more aggressive price up to Midpoint of the NBBO, except when IEX determines that the quote is transitioning to less aggressive price

D-Peg™ combines elements of Midpoint Peg, Primary Peg, and traditional discretionary order types.
Information about slow and predictable changes in the NBBO are detected in IEX's Crumbling Quote Indicator and provides D-Peg™ orders with an instruction to stop seeking access to liquidity at a more aggressive price until the quote returns to a stable state.


How to Place a D-Peg Order

Please note, the IEX D-Peg order type is only available via the TWS version 961 and above. Instructions for entering this order type are outlined below:

Step 1

Enter a symbol and choose a directed quote, selecting IEX as the destination. Right click on the data line and select Trade followed by Order Ticket to open the Order Ticket window.


Step 2

Select the REL order type from the Order Type drop down menu.


Step 3

Click on the Miscellaneous tab (Misc.) and at the bottom there will be a checkbox for "Discretionary up to limit". Check this box. The price that you set in the Limit Price field will be used at the discretionary price on the order.



Step 4 

Hit Preview to view the Order Preview window.



For additional information concerning this order type, please review the following exchange website link:



Additional Information Regarding the Use of Stop Orders

U.S. equity markets occasionally experience periods of extraordinary volatility and price dislocation. Sometimes these occurrences are prolonged and at other times they are of very short duration. Stop orders may play a role in contributing to downward price pressure and market volatility and may result in executions at prices very far from the trigger price. 

Investors may use stop sell orders to help protect a profit position in the event the price of a stock declines or to limit a loss. In addition, investors with a short position may use stop buy orders to help limit losses in the event of price increases. However, because stop orders, once triggered, become market orders, investors immediately face the same risks inherent with market orders – particularly during volatile market conditions when orders may be executed at prices materially above or below expected prices.
While stop orders may be a useful tool for investors to help monitor the price of their positions, stop orders are not without potential risks.  If you choose to trade using stop orders, please keep the following information in mind:
·         Stop prices are not guaranteed execution prices. A “stop order” becomes a “market order” when the “stop price” is reached and the resulting order is required to be executed fully and promptly at the current market price. Therefore, the price at which a stop order ultimately is executed may be very different from the investor’s “stop price.” Accordingly, while a customer may receive a prompt execution of a stop order that becomes a market order, during volatile market conditions, the execution price may be significantly different from the stop price, if the market is moving rapidly.
·         Stop orders may be triggered by a short-lived, dramatic price change. During periods of volatile market conditions, the price of a stock can move significantly in a short period of time and trigger an execution of a stop order (and the stock may later resume trading at its prior price level). Investors should understand that if their stop order is triggered under these circumstances, their order may be filled at an undesirable price, and the price may subsequently stabilize during the same trading day.
·         Sell stop orders may exacerbate price declines during times of extreme volatility. The activation of sell stop orders may add downward price pressure on a security. If triggered during a precipitous price decline, a sell stop order also is more likely to result in an execution well below the stop price.
·         Placing a “limit price” on a stop order may help manage some of these risks. A stop order with a “limit price” (a “stop limit” order) becomes a “limit order” when the stock reaches or exceeds the “stop price.” A “limit order” is an order to buy or sell a security for an amount no worse than a specific price (i.e., the “limit price”). By using a stop limit order instead of a regular stop order, a customer will receive additional certainty with respect to the price the customer receives for the stock. However, investors also should be aware that, because a sell order cannot be filled at a price that is lower (or a buy order for a price that is higher) than the limit price selected, there is the possibility that the order will not be filled at all. Customers should consider using limit orders in cases where they prioritize achieving a desired target price more than receiving an immediate execution irrespective of price.
·         The risks inherent in stop orders may be higher during illiquid market hours or around the open and close when markets may be more volatile. This may be of heightened importance for illiquid stocks, which may become even harder to sell at the then current price level and may experience added price dislocation during times of extraordinary market volatility. Customers should consider restricting the time of day during which a stop order may be triggered to prevent stop orders from activating during illiquid market hours or around the open and close when markets may be more volatile, and consider using other order types during these periods.
·         In light of the risks inherent in using stop orders, customers should carefully consider using other order types that may also be consistent with their trading needs.




















09:15 – 09:25


09:30 – 11:30


13:00 – 15:00

09:20 – 09:25:SSE不受理取消定單的請求













a)       大陸的A股市場不能進行日內交易。因此,購買SSE證券的香港和海外投資者只能在T+1當天或之後賣出股票。

b)       SSE股票沒有大宗交易機制。

c)        滬港通初始階段,SSE股票不能進行賣空交易。

d)       滬港通初始階段,IB不提供保證金交易。




電話: +852-2156-7907 / +86(21)6086 8586





沪港通是一项互联互通机制,香港和国际投资者可以通过香港联交所(以下简称“SEHK”)及其清算所交易并清算上海证券交易所(以下简称“SSE”)的上市股票。盈透作为SEHK会员,您可通过盈透快速稳定地访问SSE并交易其上市产品。 当前所有具备香港股票交易许可的盈透客户均可通过沪港通交易SSE的证券。



SSE拥有不同类型的挂牌证券,但沪港通初始阶段只能交易A 股(在中国证券交易所交易的大陆公司股票)。这包括所有上证180指数与上证380指数的成分股,以及虽不在相关指数成分股内但有股票同时在SSE以及SEHK上市的H股。





交易所费用 、清算费用以及印花税




股票于当天结算(T),而SSE交易的现金结算于一日后进行(T+1)。 请注意,外汇结算周期为(T+2)。因此,由于结算周期不同步,交易离岸人民币的客户应于股票交易的前一日(T-1)执行外汇交易以避免不必要的利息。






09:15 – 09:25


09:30 – 11:30


13:00 – 15:00

 09:20 – 09:25:SSE不受理取消定单的请求













a)       大陆的A股市场不能进行日内交易。因此,购买SSE证券的香港和海外投资者只能在T+1当天或之后卖出股票。

b)       SSE股票没有大宗交易机制。

c)        沪港通初始阶段,SSE股票不能进行卖空交易。

d)       沪港通初始阶段,IB不提供保证金交易。



电话: +852-2156-7907 / +86(21)6086 8586


Shanghai – Hong Kong Stock Connect

Shanghai – Hong Kong Stock Connect is a mutual market access program through which Hong Kong and international investors can trade shares listed on the Shanghai Stock Exchange (SSE) via the Stock Exchange of Hong Kong (SEHK) and their existing clearing house. As a member of SEHK, IB provides you with direct access to SSE and help you to trade with all listed products on the Shanghai Stock Exchange. All current IB clients with Hong Kong stock trading permissions will be eligible to trade SSE securities through Shanghai-Hong Kong Stock Connect.

Shanghai – Hong Kong Stock Connect Products
Among the different types of SSE-listed securities, only A shares (shares in mainland China-based companies that trade on Chinese stock exchange) will be included in the initial stage of the Shanghai-Hong Kong Stock Connect implementation. This includes all the constituent stocks of the SSE 180 Index, SSE 380 Index and all the SSE-listed A shares that are not included as constituent stocks of the relevant indices but have corresponding H shares listed on the SEHK.
Click here to see the product list and stock codes:
IB commission for trading SSE securities
Same as trading Hong Kong stocks, IB charges only 0.08% of trade value as a commission with a minimum CNH 15 per order. Exchange fees, clearing fees and stamp duty are required by the exchange and will be changed separately. The detailed fee rate can be find below. Comparison between fixed and tiered commission structures can also be found on our website.   
Clearing and settlement cycle
Stock settlement is within the same day (T) while cash settlement for SSE trades takes place one day later (T+1). Please be aware that the Forex settlement cycle is (T+2). Therefore, due to the unsynchronized settlement cycle, clients who exchange CNH themselves should execute the Forex trade one day prior to the stock trade (T-1) to avoid the extra day’s interest payment.
Trading hours for SSE (Hong Kong Time)

Trading Session
SSE Trading Hours
Opening Call Auction
09:15 – 09:25
Continuous Auction (Morning)
09:30 – 11:30
Continuous Auction (Afternoon)
13:00 – 15:00

09:20 – 09:25: SSE will not accept order cancellation

Trading price limit
For SSE securities, there is a general price limit of +/-10% (+/-5% for stocks under special treatment) based on the previous day closing price. All orders must be at or within the price limit. The upper and lower price limit will remain the same intra-day.
Please also note that during the initial phase of the launch, SEHK intends to set the dynamic price checking at 3% (the percentage maybe adjusted periodically).
Investment quota
Shanghai - Hong Kong Stock Connect is subject to a maximum cross-boundary investment quota (i.e. Aggregate Quota) and a daily Quota. The Aggregate Quota and Daily Quota through SSE is set at RMB 300 billion and RMB 13 billion respectively. Both the Aggregate Quota and Daily Quota are applied on a “net buy” basis. Under this principle, customers are allowed to sell their SSE securities regardless of the quota balance. Once the Daily Quota drops to zero or is exceeded during a continuous auction session, NO further buy orders will be accepted. IB will inform clients once the quota limitation is reached. SEHK will also publish the remaining balance of the Aggregate Quota and Daily Quota on the website.
Order limitation
For SSE securities, only limit orders (SSE limit orders can be matched at the specified or better price) will be accepted throughout the day. Meanwhile, all SSE securities are subject to the same trading board size, which is 100 shares. Buy orders must be multiples of a board lot; odd lot trading is only available for sell orders. Order amendment is NOT allowed. If you want to amend the order, you must cancel the order first and place a new order after the previous one is successfully cancelled.
Other trading limitations 
a)      Day trading is not allowed for the Mainland A shares market. Therefore HK and overseas investors buying SSE securities on day-T can only sell the shares on or after T+1.
b)      For SSE Securities, block trade facility will not be available.
c)       For SSE Securities, shorting is not allowed during the initial phase of the launch.
d)      IB will not be facilitating margin trading during the initial phase of the launch.
Where to learn more
Please refer to the following exchange website links for additional information regarding Shanghai – Hong Kong Stock Connect:
If you have any questions regarding Shanghai – Hong Kong Stock Connect, please contact IB customer service for further information. 
Tel: +852-2156-7907 / +86(21)6086 8586








TWS Order Presets: Primary Order Fields

Brief video on Presets that are relevant to your Primary Order

IPO Considerations

An Initial Public Offering, or IPO, is defined as the first sale of stock by a company to the public. As IB generally does not operate as an underwriter or selling agent of IPO shares, the first opportunity customers have to transact in such shares does not take place until the issue begins trading in the secondary market.  Outlined below are key issues which customers should consider when transacting in shares on their first day of listing:


1. Margin

As IPOs are inherently subject to a high degree of uncertainty as to price and liquidity once secondary market trading begins, each new issue is subject to a review to determine whether initial and maintenance margin requirements above the minimum which is required by regulation is warranted. Current margin information is made available through the "Check Margin" feature on the trading platform. Customers should also note that IB reserves the right to change margin on an intraday basis and without advance notice when warranted.


2. Order Entry

IB monitors for upcoming IPOs and makes every effort to provide customers the ability to enter orders in advance of the day at which trading begins in the secondary market.  In certain circumstances, either IB and/or the exchange may impose restrictions on the type of orders which may be accepted as well as the time in force conditions associated with such orders.  It should also be noted that orders not direct-routed to the primary exchange may be subject to special auction handling and therefore may receive a different opening print from that of the primary exchange.  In addition, as the price at which the issue trades once available in the secondary market may differ significantly from the IPO price, customers are strongly encouraged to use limit orders when.


3. Short Availability

Customers should assume that IPO issues will not be available for shorting immediately upon trading in the secondary market. This limitation is a function of regulations which require the broker to locate and make a good faith determination that shares are available to borrow at settlement coupled with the likelihood that such shares will not be available (due to underwriter lending restrictions and the fact that secondary market transactions have not yet settled).  

Syndicate content