I just got an invitation from IB to join their "Information System Beta Test". From what I've gleaned, it is apparently an optional addon to TWS that among other things, bumps up your max quote symbols from 100 to 250 lines for $39/mo. That $39/mo is rebated back to you at $0.40 per dollar you generate in commish each month. There is also a "Research Data Bundle" associated with it that cost an additional $39/month and isn't rebated back to you. I'm mainly interested in the 250 quotes upgrade, rather than the other stuff. Some questions for def (or anyone else at IB): 1) Can I upgrade to IBIS without having to subscribe to the Research Data Bundle and still get the 250 quote increase? 2) Any limitations using the 250 quote increase with the API? 3) Assuming the answer to the last two questions is "yes", then am I correct in assuming the 250 quote increase will cost me nothing extra, so long as I generate a minimum of $39/0.40 = $97.50 per month in commissions? I generate about $1K/month in commissions at present, so if I'm reading everything correctly, it looks like I just got 250 symbols/month for no additional cost. Seems like yet another good reason to stay with IB.