Wall Street's main indexes were set for strong weekly gains after signs of a possible detente in U.S. President Donald Trump's trade war with China and his backtracking on threats to fire the head of the Federal Reserve, as well as some upbeat corporate results.

In a week of turbulent trading, Wall Street indexes exhibited muted growth as investors grappled with U.S.-China trade uncertainties. Alphabet reported positive first-quarter results, boosting tech stocks despite concerns lingering from Trump's increasing tariff rhetoric.