U.S. stock futures down on tech profit-taking and weak guidance, ADC Therapeutics shares plunge 50.67%, other stocks also slide.

Discover why ADC Therapeutics (NYSE:ADCT) stock is tumbling on Friday as a prominent Wall Street analyst slashes targets due to serious trial safety signals.

U.S. stock futures down on tech profit-taking and weak guidance, ADC Therapeutics shares plunge 50.67%, other stocks also slide.