IB之前已經與用戶溝通，將修改market data service。4/21號之後，新制將開始實施。如果你漏掉Interactive Broker給你的信件，Joseph將信件附在下面。

Dear Client, As per our communication on March 17, 2017, IB will be terminating a market data service you've subscribed to and offering a variety of other services with different features and costs as a replacement. Details regarding this change are provided below and we recommend that you elect a replacement service immediately if you wish to continue receiving live quote feeds. You are receiving this notification as the U.S Securities & Futures Value Bundle for Non-Professionals1 will deactivate as of the close of business April 21, 2017 (Today). What is changing and why? The service being terminated for your account U******* is the U.S Securities & Futures Value Bundle for Non-Professionals.1 This service is being terminated due to a recent regulatory initiative requiring that U.S. stock quote feeds provide the consolidated National Best Bid & Offer (NBBO) from all market centers trading National Market System stocks (i.e., NYSE, AMEX and NASDAQ). What replacement services will be made available and at what cost? The replacement services are intended to accommodate those whose use of data is infrequent, and are therefore seeking to minimize the cost of data by paying on a per-use basis, as well as the more frequent users, whose cost is best minimized by paying a flat monthly fee. Services are as follows: U.S. Securities Snapshot & Futures Value Bundle for Non-Professionals - identical to the bundled service being terminated except that the streaming BATS exchange quotes will be replaced by a "snapshot quote". Here, the user elects when to update the quote and refresh the display with the current NBBO inclusive of the NYSE, AMEX and NASDAQ exchanges. The monthly fee for this service is USD 10 (waived if commissions of at least USD 30 are generated during the month) plus USD 0.01 for each snapshot requested. Note that the snapshot portion of the fee is not subject to waiver, regardless of commissions, but is capped at USD 1.50 per month by exchange.2 NYSE (Network A/CTA), AMEX (Network B/CTA) and/or NASDAQ (Network C/UTP) - clients may elect to subscribe to live streaming level 1 quote feeds from the NYSE, AMEX and/or NASDAQ at a cost of USD 1.50 each per month (not subject to waiver). If subscribed to the U.S. Securities Snapshot & Futures Value Bundle for Non-Professionals service, any of the individual exchange feeds also selected would serve to provide a live feed in lieu of the snapshot quote for that exchange. If not subscribed to the U.S. Securities Snapshot & Futures Value Bundle for Non-Professionals service, live quotes will only be available for stocks listed on the individual exchange feeds selected and delayed quotes, rather than snapshot quotes, will be provided for stocks listed on the other exchanges. Clients seeking live quote for all NMS stocks will need to subscribe to each of the NYSE, AMEX and NASDAQ services at a combined monthly cost of USD 4.50. What happens if I do not act? Clients are not required to subscribe to market data through IB and if you do not elect to subscribe to a replacement service, you will no longer receive live quote feed and will received delayed market data at no cost. To update your market data subscriptions, log into Account Management and select Manage Account, Trade Configuration and then Market Data menu options. For additional information regarding Snapshot quotes, please see KB2830. 1 Includes quotes for U.S. stocks on the four BATS exchanges, OTC stocks, futures and futures options from the four CME exchanges, various stock indices and U.S. bonds. 2 If a subscriber to this service requests at least 150 quotes for either of the NYSE, AMEX or NASDAQ in any given month, they will automatically be subscribed to the live streaming quote feed for that exchange at no extra cost for the remainder of the month. Interactive Brokers Client Services

原本的U.S Securities & Futures Value Bundle for Non-Professionals將停止，大家有幾種選擇：

• U.S. Securities Snapshot & Futures Value Bundle for Non-Professionals：其實跟之前的名字很像，加了個snapshot，資料不是即時的，月費十美金 (但每月手續費達30美金可減免)，加上snapshot的資數，一次0.01美金。所以他們希望給你delayed資料，用snapshot給你即時資料。如果你一個月用超過150次snapshot，費用最高就是1.5美金。
• NYSE (Network A/CTA), AMEX (Network B/CTA) and/or NASDAQ (Network C/UTP)：這個選擇是即時資料，一個交易所是1.5美金一個月，三個加起來就4.5美金，無法用手續費減免。這可以與上面的U.S. Securities Snapshot & Futures Value Bundle for Non-Professionals一起使用。

如果你是交易options，你一樣可以用U.S. Securities Snapshot & Futures Value Bundle for Non-Professionals，或是加上即時資料的OPRA Top of Book: real-time top of book quotes for all U.S. securities option exchanges.。 如果你要即時資料，與options的即時資料，那就選這個選項：US Equity and Options Add-On Streaming Bundle，這包含了NYSE (Network A), AMEX (Network B), NASDAQ(Network C), and OPRA(US Options)。如果要更多訊息，可參考IB的網頁。