1000 points crash in Dow-Highest Ever

Riyaz Khan (CA CS (Exec) MBA (Fin) Asst. General Manager-SEBI Internal Auditor-British Certifications Inc.)     07 May 2010

Riyaz Khan
CA CS (Exec) MBA (Fin) Asst. General Manager-SEBI Internal Auditor-British Certifications Inc. 
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US stock plunge raises alarm on algo trading

7 May 2010, 0807 hrs IST,REUTERS
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NEW YORK: A spine-chilling slide of nearly 1,000 points in the Dow Jones Industrial Average, its biggest intraday points drop ever, led to
heightened calls for a crackdown on computer-driven high-frequency trading. The slide, which in one 10-minute stretch knocked the index down nearly 700 points, may have been triggered by a trading error.

Major stock indexes eventually recovered from their 9 percent drops to close down a little more than 3 percent. But the follow-through selling that pushed stocks of some highly regarded companies into tailspins exacerbated concerns that regulators can quickly lose control of the markets in a world of algorithmic trading.

High-speed trading, which uses sophisticated computer algorithms based on specific scenarios to automate transactions at speeds in the millionths of a second, now accounts for about 60 percent of U.S. equity volume.

"The potential for giant high-speed computers to generate false trades and create market chaos reared its head again today," Senator Edward Kaufman said in a statement. "The battle of the algorithms -- not understood by nor even remotely transparent to the Securities and Exchange Commission -- simply must be carefully reviewed and placed within a meaningful regulatory framework soon."

Kaufman and Senator Mark Warner -- both Democrats -- said Congress needs to investigate the plunge, which at its deepest point wiped nearly $1 trillion off equity values. And a House panel has slated a hearing on the causes for the market swoon for next Tuesday, with its chairman, Rep Paul Kanjorski, urging the SEC to investigate as well.

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The scary afternoon in markets came at a bad time for Wall Street, already reeling from accusations that it is a rigged casino -- a criticism stoked by recent civil fraud allegations against Goldman Sachs Group Inc.

The industry has been trying to stave off the Obama administration's calls for tough financial regulation, and the sell-off came as the Senate turned back a Republican effort to weaken a plan to set up a financial consumer watchdog.

Lending credence to the sense that the sell-off was exacerbated by technical errors, the Nasdaq stock exchange and NYSE-Arca said they would cancel certain trades that happened during the period in question. But only trades in stocks that moved 60 percent up or down were covered by the cancellations, leaving some investors with potentially major losses on stocks such as Apple Inc and Procter & Gamble Co, which suffered lesser, but still significant, declines.

The US Securities and Exchange Commission and Commodity Futures Trading Commission said they were reviewing the unusual activity and working with the exchanges to protect investors. Citigroup Inc said it was investigating a rumor that one of its traders entered the trade, a spokesman for the bank said on Thursday.

Citigroup, the third-largest US bank, said it has no evidence that an erroneous trade has been made. Several market participants cited speculation that a trader at Citigroup had erroneously placed an order for at least $16 billion in E-Mini contracts -- stock market index futures contracts that trade on the Chicago Mercantile Exchange's Globex trading platform.

But a source familiar with the situation said Citigroup had traded a total of just $9 billion of the E-Mini contracts, adding that that amounted to less than 3 percent of the $319 billion traded on the E-Mini on Thursday. CME said the bank's trades in CME index futures appeared normal.

'SCREWED UP' Earlier, sources told Reuters that the plunge in the Dow Jones Industrial average may have been caused by an erroneous trade entered by a person at a big Wall Street bank. During the sell-off, Procter & Gamble shares plummeted nearly 37 percent to $39.37 at 2:47 pm ET (1847 GMT), prompting the company to investigate whether any erroneous trades had occurred.

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