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REST is stateless, like html, no two way communication management.

IB, as well as tdameritrade, etrade, have rest api for trading. anyone has experience using them? is it possible to submit 200 orders in one minute and track if the orders are filled or not?

thanks. how can they make money?

Thank you

so which broker meets my requirement? ie, safe, reliable, low commission, fast transaction ?

i mean real bitcoin, not future.

the broker should have low commission, be reliable and safe for the bitcoin.

i also have 17 shares tsg remaining in my ib account. do not worry.

i went to quandl webpage, can not find information on its live market stream, no less 200$/month. does quandl offer api to level1 data for all US equity market?

so it means the stock will go down?

how much commission have you paid for 275200 shares?

does thinkorswim has an api? last time I checked they use api from tdameritrade restful protocol. is that still the case?

2-4 cents? Quite good

My research needs nbbo+quote on US equities for the last 6 months. If you have it, I would buy from you.

have same problem could not scroll down ts window

any way to download IB nbbo historical data?

I like what you provide. will subscribe to your service in the future. currently I can not find examples how to use your service in c++/c. I need whole market coverage, and historical nbbo+trade. do you have historical nbbo+trade? and for how many years?

I had an interview at DE Shaw in 2005. the question was really tough, since I did not prepare any such questions before going there. At that time, I was not in the job market. I was invited by his firm to apply for a scientific position there (some people in his firm constantly searched resumes...

that is what I think too. look at the 150 Phd Simons hired to work on daily swing, not so impressive as close to medallion fund.

My trading strategy is very simple, any technical person in the brokerage firm can quickly understand it if he looks into the order entry.