It's also worth noting that thinkorswim uses GAIN Capital, the owner of FOREX.com, as its liquidity provider to handle its forex execution (for both pricing options). … Otherwise, TD Ameritrade appears to compete well on spreads in its non-commission FX contracts.

Nov 16, 2015 – thinkorswim Review. Thinkorswim is the best option for U.S. traders looking to trade forex and multiple other products. Their robust and powerful platform puts every imaginable forex trading tool at your fingertips, but the level of advanced features may not be ideal for beginners.

Feb 9, 2017 – I'm looking at two feeds for the currency pair AUD/USD, one from Thinkorswim, and the other from a dedicated Forex broker. Thinkorswim is missing the high low open data on my candles for the past 20 days, plus the data before that doesn't match. Turns out most of the pairs are presenting like this on TOS …

UPDATE 2009 – thinkorswim has been acquired by TD Ameritrade, please see our TD Ameritrade Review. Thinkorswim is an online broker that offers low cost stock trades to its large client base of investors. Thinkorswim provides its traders with a wide spectrum of tools for the self-directed investor. Forex and bond trading …

ThinkOrSwim has the best tools for options traders. I have traded options at many options brokerage firms. TOS has the best tools for trading options. For example, OnDemand permits you to back test tick by tick, not simply closing prices. There is a huge collection of technical methods (called stu.s). You can write your own …