"A single mysterious computer program that placed orders — and then subsequently canceled them — made up 4 percent of all quote traffic in the U.S. stock market last week, according to the top tracker of high-frequency trading activity. The motive of the algorithm is still unclear.
The
program placed orders in 25-millisecond bursts involving about 500
stocks, according to Nanex, a market data firm. The algorithm never
executed a single trade, and it abruptly ended at about 10:30 a.m. ET
Friday."
And they can't figure out who did this??? Is this how we want our economy run? Computers deciding millions of trades every millisecond? So it becomes a battle of the algorithms rather than competition based on the quality of product and management. I don't like this.
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