A recent Forbes article discusses how much control the quants are now wielding in the stock market.The article states that 70% of all equity volume is driven by computer models and that these models continue to trigger surges in buy or sell orders. Some 30% of all trades are being done in dark pools — alternative trading systems (also known as the upstairs market). Given the hidden nature of this activity, ordinary investors are fighting with one arm tied behind their back and should beware.
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