| http://www.w3.org/ns/prov#value | - Aug. 31, 2010 at 1:35 p.m. 1 comment Filed under: Computers, Investing, Stock activity Ameritrade fixes derivatives platform glitch By Dow Jones Newswires TD Ameritrade Holding Corp. said Tuesday that it had resolved technology issues that slowed trading and other functions on its Thinkorswim derivatives platform.
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