Fills at IB vs TS vs TOS

Discussion in 'Options' started by wouter, Feb 4, 2010.

  1. wouter


    Has anyone tested the fills we retail traders get at these three firms? I tried TS and TOS on a limit order on a calendar spread and they were filled in the same second.

    Of course that is a one trade test and not necessarily representative.

    I would like to know if there is data out there on this subject. please share it here.
  2. Pauluss


    I closed a butterfly yesterday evening via TOS...It took a long time to be executed - this is not immediately at all but certainly depend on what you try to do.

    As explained in this topic:

    the best is to start in the middle of the spread and if nothing happens or if the market starts to move against you tick a little towards the bid or the ask depending on your order.

    If you want to be filled immediately, take the bid (in case you sell) or the ask (if you buy)...