Recent content by Seancn

Which software companies develop proprietary software in the trading industry? Thanks.

Or put it another way: what trading tool market makers use for their trading? I do not think market makers can use IB TWS manually to do their job.

I tried your way, it never got filled close to middle price. I used IB JAVA API code and got filled a shy of middle price by couple cents. Now, I am looking for tools similar to what IB can provide.

I want to buy spy option and sell voo option (with the same expiration , strike , all call, and quantity) at the same time. No trading platform can do this. A program is needed to do this. Interactive brokers provides API to do this. Are there any other brokers or system provider providing this...