When the market is open — and why it's closed today

A quick note before we begin: there's no opening bell to preview today. U.S. markets are closed for Independence Day, so this isn't our usual pre-market brief — and with the market shut, it's the only email you'll get from us today. Rather than skip a day, we're using the quiet to run the lesson your evening edition would have carried. It's a fitting one, too.

One of the first things a new trader has to absorb is deceptively simple: the stock market is not always open. It keeps regular business hours, takes weekends off, and closes for about ten holidays a year — one of which is today. Knowing the schedule isn't trivia. It shapes when prices move, how much they move, and when you can actually do anything about it.

The core U.S. session runs from 9:30 AM to 4:00 PM Eastern time, Monday through Friday. The day opens with a bell at the New York Stock Exchange and ends with another at 4:00. Those two moments — the open and the close — are the busiest of the day: the most shares change hands and prices move fastest. A large share of a stock's daily movement happens in the first and last thirty minutes of trading.

Between 4:00 PM and 9:30 the next morning, the market is closed. News can still break — an earnings report, an economic release, a headline — but nothing trades until the bell rings again. That's why a stock can “gap”: it closes at one price and opens the next morning at a very different one, because a whole night's worth of reaction gets packed into the reopening.

There are also extended-hours sessions: “pre-market” before 9:30 and “after-hours” after 4:00, where some trading happens electronically. You'll hear about them, especially around earnings. The one thing a beginner needs to know is that these sessions are thin — far fewer buyers and sellers, which means wider spreads and jumpier prices, and it's easy to get a bad fill. Almost everything we'll do this year lives in regular hours. There's no rush to trade the edges.

On top of weekends, the exchanges close for roughly nine or ten full holidays a year, and a few times a year they trade a shortened “half day” (yesterday was one — an early 1:00 PM close). Today, Friday, July 3rd, the market is closed all day for Independence Day — observed today because the Fourth falls on a Saturday. It reopens Monday, July 6th at 9:30 AM ET.

Why care about a day off? Two reasons. First, volume thins out around holidays — fewer big institutions are at their desks, so moves in the days on either side can be exaggerated or misleading. Second, and more important: a closed market is a built-in reminder of something the best traders live by — you don't have to act every day. There is no trade to make today. Nobody is falling behind. The market will be there Monday.

Livermore was preaching patience, but the calendar makes his point for him. The best traders aren't the ones staring at the screen every hour the market is open — they're the ones who understand that not trading is itself a decision. Today that decision is made for us. Spend it the way a professional spends a closed market: review your notes, study a chart or two, and come back Monday a little sharper.

The market runs 9:30 to 4:00 ET on weekdays, minus about ten holidays a year. Prices move most at the open and the close, they gap on overnight news, and they get thin and unreliable outside regular hours and around holidays. Once that rhythm is second nature, the market stops feeling like a machine that's always running — and starts looking like what it is: a place of business with opening and closing hours, one that rewards the people who show up prepared.

Educational content only. Not financial advice. Past performance does not predict future results. Read the full financial disclosure.