I opened one with them this thursday.
I like their future margin, they seems they give intra-day future margin whether overnight or intra-day. I did not get it why IB did not give me intra-day margin in overnight (evening/night) trading.
I may move some future trading to them. higher leverage is gift to me.
have this margin requirement, I can trade agressively with future. since I can easily double a position with low margin requirement. just like option level leverage. to me, it is awesome.
their stock trading commission sucks if your trading size is under 2000shares. but if I trade large lot, actually it is cheaper than IB.
their option trading commission fee sucks if you trade small lot. but if you trade 30lot above, it is cheaper than IB. that is a big plus for me, since I trade 50lot to 500lot.
their thinkorswim in first sight looks too overwhelming. but after you play a while, you will realize it have more features than tws, some are very useful, such as when news realse, earning time, very great feature, realtime cnbc news. I just hope thinkorswim can be configuragble. the simpler the better to me. the screen too crowded with unwanted stuff.
other reasons is I want to do on-line banking with them, I can pay bills directly from trading profit, so I can avoid check to check communication with my brokers, it is time consuming, IB will charge me if I ask second check withdrawal, that sucks. plus I need deposit the check to my bank physically.
I think overall is acceptable, but not good for small lot traders.
if you have a large account above 250k, that is a good place to go. small account like 50k under, IB is good, you can trade 100shares, or 1 contract, cheaper and flexiable.
anyone experience thinorswim, please give some tips or bugs you find using it