Wall Street’s summer-long party fueled by investors’ appetite for some of the world’s best-known technology companies has come to an abrupt, if not entirely unexpected, halt. The sharp sell-off that began last Thursday has wiped out nearly 7.1% from the S&P 500 as of Tuesday, its first three-day skid in nearly three months. The Nasdaq composite, home to Apple, Amazon, Zoom, Tesla and many other tech stocks that led the market’s remarkable five-month comeback from its lows in March, has lost more than 10% after setting an all-time high just four days ago. Analysts say it’s a reality check after an overdone push into tech stocks.