IonQ ( IONQ 10.84%) stock posted big gains in Friday's trading. The quantum-computing company's share price closed out the ...

Three companies currently boast a market cap over $3 trillion, and I think one of them will reach the $4 trillion mark sooner than later.

Shares of Carvana ( CVNA -11.22%) were heading lower today as investors continued to respond to a short report from ...