PaulCao 51 Report post Posted April 19, 2017 Hi, I came across this article: http://www.reuters.com/article/us-exchange-data-idUSKBN17L2PU My understanding is that the exchanges want to make more money; and want to distinguish the folks who use quotes on a display-screen (e.g., ToS or TWS) versus polling or streaming via an API; and suspect the recent change in the IB quotes subscription is due to this, I know that people here have sourced their data from historicaloptionsdata.com or IB API; this rule will most likely affect professionals who get their quotes from Bloomberg, RealTick or some other kind of professional OMS/EMS and data vendors, but am curious for retail who collect data, if you guys know if this is going to be a big deal too? Best, PC Share this post Link to post Share on other sites