Anonymous wrote:
The stock market has nothing to do with the health of the country/economy. The vast majority of the trades are done by computers looking for short term gains(that can be measured in factions of second).
But when you a looking at a situation as momentous as the Sequester, and hours between the time that it became clear there would be no rescue and the close of the market, the people controlling those programs had plenty of time to intervene. However, I do nt disagree that those people might see gain for the stocks even though joblessness will increase and other aspects of the economic situation will deteriorate.
The markets had about a month and half notices the SQ. The programs are very complex, looking to make a few cents on multiple trades in a fractions of a second. It really has nothing to do with long term value of a stock or the US economy.
http://topics.nytimes.com/topics/reference/timestopics/subjects/h/high_frequency_algorithmic_trading/index.html
Over the past few years, high-speed or high-frequency trading — known as H.F.T. — was the biggest new thing to hit Wall Street trading, and in the minds of many, the most disruptive. On any given day, this lightning-quick, computer-driven form of trading accounts for half of all of the business transacted on the nation’s stock markets.
Critics say H.F.T. has contributed to the hair-raising flash crashes and computer hiccups that seem to roil the markets with alarming frequency.
H.F.T. first became a significant part of the Wall Street scene in the 1980s, when it was blamed for exacerbating the market plunges in October 1987. Since then, the computers involved have grown vastly more powerful and the algorithms that guide their trading vastly more sophisticated.
For years, H.F.T. firms have operated in the shadows, often far from Wall Street, trading stocks at warp speed and reaping billions while criticism rose that they were damaging markets and hurting ordinary investors. More recently, they have been stepping into the light to buff their image with regulators, the public and other investors.
At the same time, figures suggest that the practice may be cooling down a bit. Profits from high-speed trading in American stocks were on track to be, at most, $1.25 billion in 2012, down 35 percent from 2011 and 74 percent lower than the peak of about $4.9 billion in 2009, according to estimates from the brokerage firm Rosenblatt Securities. And the percentage of stock trades handled by firms that specialize in H.F.T. fell to about 51 percent in 2012 from 60 percent in 2009.
Drops in overall trading volume have made it harder to make profits for traders who quickly buy and sell shares offered by slower investors. In addition, traditional investors like mutual funds have adopted the high-speed industry’s automated strategies while the technological costs of shaving further milliseconds off trade times has become a bigger drain on many companies.
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