After 20 minutes of trading on Wall Street, the Dow Jones industrial average rose 0.7 percent and the broad S&P 500 index rose 0.2 percent. The tech-heavy Nasdaq composite index was unchanged.
Meta posted strong numbers across many metrics, but it raised its investment forecast, which the market took badly. On Thursday, the stock was down 9.2 percent so far.
Alphabet moved in the opposite direction, up 5.8 percent. The company's report on Wednesday evening was better than expected in terms of earnings per share and revenue - particularly for cloud services.
After the stock market closes on Thursday, a report is expected from technology giant Apple, the world's third-most valuable listed company.
