The simple version

A reverse stock split combines a company's existing shares into fewer of them. A set number of the shares you own are merged into one. You end up holding fewer shares, and each one is priced higher.

People tend to read a reverse split as news about the business. On its own it is not. One situation the SEC names is a listed stock whose price has dropped under the minimum its listing market requires, where shrinking the share count raises the quoted price back over it.

The numbers

• In a reverse stock split, each outstanding share is converted into a fraction of a share; in a one-for-ten split, every ten shares become one, so 10,000 shares become 1,000 (U.S. Securities and Exchange Commission, Investor.gov)
• A company may declare one to increase the trading price of its shares, for example when it believes the price is too low to attract investors, or to regain compliance with an exchange's minimum bid price requirements (U.S. Securities and Exchange Commission, Investor.gov)
• In some reverse splits, small shareholders are cashed out, receiving cash instead of partial shares, so they no longer own the stock (U.S. Securities and Exchange Commission, Investor.gov)
• Investors may lose money as a result of price fluctuations after a reverse split (U.S. Securities and Exchange Commission, Investor.gov)
• State corporate law and a company's articles of incorporation and bylaws generally govern whether it can declare a reverse split and whether shareholders must approve it (U.S. Securities and Exchange Commission, Investor.gov)

Why the listing rule is the part to understand

Listing markets set a minimum bid price for the stocks they carry, and a stock that slides far enough can drop under it. Cutting the share count is a direct way to raise the price per share, because the same company is now divided into fewer shares. That listing floor is one of the two reasons the SEC gives.

The key thing is what the split does not change. Turning ten shares into one, each priced at roughly ten times as much, does not add value, because the company is the same size the moment after as the moment before. The SEC also warns that investors may lose money from price swings after a reverse split, so the arithmetic of the split is no promise about what the shares do next.

That is why a reverse split is a weak signal by itself. It can help a company keep its listing, but it does not address whatever pushed the price down in the first place. The split changes the number on the ticker, not the business behind it.

It is worth separating from a regular stock split. A regular split lowers the price per share by dividing each share into several. A reverse split does the opposite, raising the price per share by combining several shares into one. The two are the same steps run in opposite directions, which is why the earlier explainer on regular splits is the place to start for the no-value-change arithmetic.

What this means

When a company announces a reverse split, the useful read is to look past the higher share price to the stated reason. If the reason is listing compliance, that tells you the price had fallen below what the exchange requires, not that anything about the business was fixed.

The durable point is that share price and share count are presentation, not value. A company can rearrange both without becoming worth a dollar more or less, and knowing that keeps a reverse split from looking like good news it is not.

What this is NOT

This is not advice to buy, sell, or hold any stock, and it is not a prediction about any company that does a reverse split. It explains what a reverse stock split is and the reasons for one, as the U.S. Securities and Exchange Commission describes them. The one-for-ten example is an illustration of the mechanics, not a specific company. It does not state any exchange's specific minimum price or deadline, which are set in each exchange's own listing rules. It takes no view on any particular reverse split, and the SEC warns prices can move afterward. This is not a political endorsement or criticism of anyone.

Sources

• U.S. Securities and Exchange Commission, Investor.gov, Reverse Stock Splits, read November 11, 2026: https://www.investor.gov/introduction-investing/investing-basics/glossary/reverse-stock-splits