The stock market delivered another head fake Thursday. After opening higher on overseas momentum, all three major indexes reversed sharply into the close , extending what has become a frustrating pattern for investors. The Dow Jones Industrial Average fell 669 points (-1.3%), while the $S&P 500(.SPX)$ dropped 1.6%. The tech-heavy Nasdaq Composite sank 2.0%, leading the declines. $Apple(AAPL)$ $NVIDIA(NVDA)$ $Palantir Technologies Inc.(PLTR)$ Sell-Off... All three major averages are now on track for weekly losses exceeding 1%. Another Intraday Reversal Thursday’s selloff continued a recent pattern: strong openings fol