3 ms·Like others here, I like Think or Swim by TD Ameritrade.by brxdy 11y agoLike others here, I like Think or Swim by TD Ameritrade.vikas5678 11y agoJust one problem though, in times of extreme market volatility and volume, Thinkorswim freezes up. Like today, it was unusable at times.brxdy 11y agowas that limited to ToS though? Wasn't much liquidity out therevikas5678 11y agoInteractive Brokers and Tradestation didnt have much issues, but yes, getting filled on trades, especially options trades was a nightmare.tradinup 11y agoI was wondering about this, so Interactive Brokers was still pretty solid during last Mondays market swings?