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Checking the market clock
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Is the stock market open today?

Every example below is priced from NVIDIA's newest trading day, with $100,000 in virtual money to practice on. No sign-in.

How it works: It shows whether the US stock market is open right now, today's hours, when it opens next, and the coming holidays and early closes, all in New York time from the market calendar.

Market replay

Replay any of the last five trading days

Any US stock or fund, minute by minute, at up to 10xPro
A market replay session on JagSim: NVIDIA on Friday, November 6, 2026, 50 shares bought at $188.92 at 10:44 AM, the chart paused at 10:50 AM with the day's result so far

Market replay is part of Pro. Buy and sell a past day as it happened, step a minute at a time, and see your result at the close.

What if I had invested

Worth todayLoading the price history
Practice this trade with $100,000 in virtual money

Market hours

Is the stock market open today?

Checking the market clock
Reading the market calendar

What are the stock market hours? Regular session 9:30 AM to 4:00 PM ET, Monday to Friday; pre-market from 4:00 AM, after hours to 8:00 PM. When does the stock market close early? At 1:00 PM ET on the days marked above. i

Keep going

Keep what you practice

A free account saves trades, portfolio and replays. 7-day free trial of Pro, no card.

$100,000in virtual money on day one
Real-timeprices on every chart and order
Freeforever, no card to start

Sizing and risk

Position size

Shares to buy
Position
Practice this trade

Risk to reward

Risk to reward
Break-even win rate i
Practice this trade with $100,000 in virtual money

Average cost and break-even

Average cost
Break-even price i
Practice adding to a position

Returns

Profit, loss and percent

Compound growth

Dividend reinvestment

Dividends reinvested
Dividends taken as cash
Practice a dividend portfolio

Educational tools, not investment advice. JagSim is a simulator, not a broker. The replay day is stored after each close; the stop-loss share calculator has its own page too.