Charles Schwab

Documented trading access

Overnight hours

24-hour continuous eligible orders each market day via thinkorswim; 24/5 service

Days available

24 hours a day, 5 days a week; current cited page does not separately state the weekly Sunday/Friday boundary

Sunday night

24/5 stated; exact weekly boundary not separately stated on cited page

Continuous 24/5 window

24/5 on eligible securities via thinkorswim

Premarket

7:00 AM–9:25 AM ET

After hours

4:05 PM–8:00 PM ET

Eligible securities

Over 1,100 stocks and ETFs: all S&P 500, Nasdaq 100, and Dow 30 stocks, plus over 600 ETFs

Order types

Limit orders only outside regular hours; EXTO 24h Day or GTC available on thinkorswim

Venue / ATS

Multiple venues/market centers; cited page does not name a single overnight ATS

Platform access

24/5 only on thinkorswim platforms; ordinary premarket/after-hours available on Schwab platforms