CROLLO MEDIATICO

Questa una delle giustificazioni per l'ondata di vendite di questa sera, prima delle 21 ora italiana :

"L'ondata di vendite e' scattata all'improvviso, facendo perdere al Dow Jones quasi 1000 punti in meno di 10 minuti. I trader parlano di ordini colossali di vendite su una blue chips del DJIA, cioe' Procter & Gamble, che hanno innescato il crollo sul Dow Jones e sugli altri indici Usa. Il futures (mini) sullo S&P 500 ha scambiato un valore nominale di oltre $16 miliardi di dollari in un quarto d'ora, un'enormita' senza precedenti. Il crollo e' stato amplificato dagli ordine automatici dei computer (program trading) scattati tutti insieme su certe soglie. Questi robot finanziari chiamati high frequency trading hanno aperto il diluvio delle vendite, un panic selling computerizzato che ha portato il Dow Jones a perdere 700 punti in 15 minuti. Nei successivi 20 minuti il Dow ha recuperato 600 punti."

NEW YORK (CNNMoney.com) -- In one of the most gut-wrenching hours in Wall Street history, the Dow plunged almost 1,000 points Thursday, before recovering some, on a technical glitch in the trading of Procter & Gamble stock and fears about the European debt crisis spreading.
The selling was exacerbated by the huge drop in Dow component Procter & Gamble (PG, Fortune 500). There may have been technical glitches which caused it to plunge 37% in minutes.
P&G's slump was responsible for 172 of the 997.21 points that the Dow Jones industrial average (INDU) was down at the nadir, the biggest one-day point decline on an intraday basis in Dow Jones history.

On the session, the Dow lost 348 points, or 3.2%, to 10,520.32. The Dow's biggest one-day point decline on a closing basis was Sept. 29, 2008, when it fell 777.68.
The S&P 500 index (SPX) slipped 38 points, or 3.3%. The Nasdaq composite (COMP) dropped 82 points, or 3.4%.
"On the Dow we were down 400 to 800 points in five minutes, it was horrifying," said Art Hogan, chief market strategist at Jefferies & Co.
Beyond the P&G glitch, the selling pressure of the last few days has been more technical than fundamental, said Hogan. He said the market collapsed some major technical support levels and could be in for more selling Friday.
All 30 Dow components slid, with oil components Chevron and Exxon Mobil, financial leader JPMorgan Chase and tech names Hewlett-Packard and IBM among the big losers. 3M, Boeing and United Technologies added to the weakness.
Gold spiked above $1,200, the euro plunged to a more than 1-year low against the dollar and oil prices fell. Bond prices rallied, sending the corresponding yields lower as investors sought safety in government debt prices.
The run from the euro and into the dollar and U.S. government debt was a classic flight to quality, said Ted Weisberg, NYSE floor trader, Seaport Securities.
The CBOE Volatility (VIX) index, Wall Street's so-called fear gauge closed at 34.16, its highest finish since May 4, 2009. Earlier it had spiked as high as 40.70.