Guide · Basics
What Is a Stock Split? Why a Company Would Cut Its Own Share Price
A stock split multiplies the number of shares outstanding while proportionally cutting the price of each one — leaving the company's actual value unchanged. Here's why companies do it anyway.
A stock split is a corporate action that increases the number of a company's outstanding shares by a fixed ratio while proportionally reducing the price of each individual share — so the total value of what any existing shareholder owns doesn't change. In a 4-for-1 split, for example, a shareholder holding 10 shares at $400 each ($4,000 total) would end up holding 40 shares at $100 each — still $4,000 total.
Since a split doesn't change the company's underlying value, revenue, or profitability in any way, the main effect is purely cosmetic: a lower per-share price. Companies pursue that cosmetic change for a few practical reasons — a lower nominal share price can make a stock feel more accessible to retail investors buying in round share amounts, and it can bring a stock's price back into a range that makes options contracts (which trade in fixed lots of 100 shares) more affordable to trade.
There's also a "reverse split," which runs the same mechanism backward: shares are consolidated into fewer, higher-priced ones. Companies typically use reverse splits defensively — often to push a stock's price back above an exchange's minimum listing requirement after a prolonged decline — which makes a reverse split, unlike a regular split, sometimes read by the market as a mildly negative signal about the company's recent performance rather than a neutral, cosmetic event.
Because a split changes the number of shares and the price per share by the same ratio, it's a useful concept to practice mentally before it shows up in a real portfolio — and a good reminder, on Trade2Spike's Markets pages, that a stock's price alone never tells you anything about its actual value without knowing the share count behind it.