Crypto just opened S&P 500 trading for the weekend while Wall Street shuts down

March 19, 2026 at 4:15 PM • Editorial Desk

For decades, the benchmark for US risk lived on US time. S&P 500 opened at 9:30 a.m. Eastern and closed at 4:00 p.m., with premarket whispers and after-hours fragments filling the gaps. On Mar. 18, that constraint began to crack.…