F****s 发帖数: 3761 | 1 Tradebot Systems, Inc. is one of the largest high-frequency, computer
trading firms in the US. Based in Kansas City, Missouri, they regularly
account for 5% of the total trading volume in the US stock market.[2]
According to the founder, Dave Cummings, as of 2008, the firm "typically
held stocks for 11 seconds", and "had not had a losing day in 4 years".[3] |
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