Real-time stock data comes from your brokerage account, financial websites, or market data services — not from a single "official" source

If you own stocks, your brokerage shows you the current value of your holdings the moment you log in. If you want to see how the overall market moved today, financial websites like Yahoo Finance, Google Finance, or CNBC display the major indexes — the S&P 500, Nasdaq, and Dow Jones — updated throughout the trading day. The stock market itself closes at 4 p.m. Eastern time on weekdays, so "today's" performance is final after that hour.

The price you see depends on when you look. Stock prices change constantly during market hours (9:30 a.m. to 4 p.m. Eastern, Monday through Friday). After hours, prices can move on news or international events, but those trades happen on smaller exchanges with wider bid-ask spreads and less liquidity. If you check at 3 p.m., you are seeing a different price than you would at 3:30 p.m.

Your brokerage account is the most reliable place to check because it shows your actual cost basis, gains or losses, and current holdings in one place. Public websites are free but show only the market price, not your personal position.

Key Takeaways

  • Stock prices update continuously during market hours (9:30 a.m. to 4 p.m. Eastern on weekdays) and the final price for the day is set when the market closes at 4 p.m.
  • Your brokerage account shows your actual holdings and gains or losses; public financial websites show only the market price of individual stocks and indexes.
  • The major indexes (S&P 500, Nasdaq, Dow Jones) are the quickest way to see whether the overall market moved up or down today.
  • After-hours trading happens on smaller exchanges with fewer buyers and sellers, so prices can swing more widely and may not reflect tomorrow's opening price.

Where to find today's stock prices

Log into your brokerage account first if you own stocks. Fidelity, Schwab, E-Trade, Vanguard, and most other brokers show your portfolio value, individual stock prices, and your gain or loss for the day in dollars and percentage. This is the most direct answer to "how are my stocks doing."

For stocks you do not own or to see the broader market, use Yahoo Finance, Google Finance, or CNBC. Type the stock ticker (AAPL for Apple, MSFT for Microsoft) into the search box and you get the current price, the change from yesterday's close, and a chart. These sites are free and do not require an account.

If you want to see how the market as a whole performed, search for "S&P 500," "Nasdaq," or "Dow Jones" on any of those sites. The S&P 500 is the most commonly cited index and tracks 500 large U.S. companies. The Nasdaq is heavier in technology stocks. The Dow Jones tracks 30 large companies and is the oldest index.

Understanding what "up" and "down" means

A stock price listed as "up $2.50" or "down 1.2%" tells you the change from yesterday's closing price. If Apple closed at $150 yesterday and is at $152 today, it is up $2. The percentage change ($2 divided by $150) is about 1.3%.

Percentage change matters more than dollar change because it shows the actual return. A $5 move on a $100 stock is a 5% move. A $5 move on a $500 stock is only a 1% move. Brokerages and financial websites show both, but percentage is the number that tells you whether the stock moved significantly.

The color coding is standard: green means the price went up from yesterday's close, red means it went down. Some sites show the change in real time during market hours and update the final number after 4 p.m. Eastern.

Why your account might show a different price than the website

If you see a different price on your brokerage than on Yahoo Finance, the difference is usually timing. Brokerages update prices in real time or near-real time. Free websites sometimes have a 15- to 20-minute delay, especially for individual stocks. If you check at 3:45 p.m. on your broker and 3:50 p.m. on a website, you are looking at two different moments in time.

Another reason is the bid-ask spread. The "bid" is what buyers will pay right now; the "ask" is what sellers want. Your brokerage might show you the bid price, while a website shows the ask, or vice versa. The spread is usually small for popular stocks but can be wider for less-traded companies.

If the difference is large or persistent, contact your brokerage. A pricing error on their end is rare but possible, and they can explain what you are seeing.

How to track performance over time

Most brokerages let you set up a watchlist or portfolio tracker. Add the stocks you own or want to monitor, and the app or website shows you the price, change, and sometimes a small chart. This is faster than searching for each ticker individually.

Financial websites also let you create a free account and build a watchlist. Yahoo Finance, Google Finance, and MarketWatch all offer this. You do not need to own the stock to track it; a watchlist is just a way to organize the tickers you want to check regularly.

For longer-term tracking, your brokerage statement shows your cost basis (what you paid), current value, and total gain or loss. This is the document you need if you sell and want to calculate your tax liability. Most brokerages send statements monthly or quarterly, and you can download them anytime from your account.

What happens after the market closes

After 4 p.m. Eastern, the regular stock market closes and after-hours trading begins on smaller exchanges. Prices can move significantly after hours if major news breaks — earnings reports, economic data, or company announcements often come out after 4 p.m. Your brokerage may show after-hours prices if it offers after-hours trading, but most individual investors do not trade during these hours.

If you see a big price move after hours, remember that after-hours trading has fewer buyers and sellers, so the price can swing more than it would during regular hours. The opening price the next morning may be different from the after-hours price you saw.

On weekends and holidays when the market is closed, stock prices do not change. The next price update comes when the market opens on the next trading day.

Frequently Asked Questions

Why is the price different on my phone app than on the website?

Your phone app (if it is your brokerage app) usually updates faster than a website because it connects directly to your account. Free websites often have a delay of 15 to 20 minutes. If both are from your brokerage, the difference is usually just timing — refresh the website and it should match.

Can I see what stocks did yesterday or last week?

Yes. Your brokerage shows historical prices and charts going back years. Financial websites like Yahoo Finance also have charts where you can select the time period — one day, one week, one month, one year, or custom dates. Click on the chart and select the range you want to see.

What does "volume" mean when I see it listed with a stock?

Volume is the number of shares traded that day. High volume means many people bought and sold; low volume means few trades happened. Higher volume usually means the price move is more reliable because more money moved the price. Low volume can mean a price move is less stable and could reverse quickly.

If the market is closed, can I still buy or sell stocks?

Some brokerages offer after-hours trading from 4 p.m. to 8 p.m. Eastern, and pre-market trading from 4 a.m. to 9:30 a.m. Eastern. These are not available through all brokerages, and prices are less stable because fewer traders are active. Most individual investors wait for regular market hours.

How do I know if a stock price is "good" or "bad"?

A single day's price move does not tell you whether a stock is a good investment. A stock that is down 5% today might be up 20% over the year, or it might be down 30%. Look at the longer-term chart and the company's earnings to understand whether the move is significant. Your brokerage or a financial advisor can help you evaluate whether a stock fits your goals.