Term · Capital Measures & Financing
Stock Split
In briefA stock split divides existing shares into more shares with a correspondingly lower price per share. The total value of the position and the market capitalization remain unchanged in arithmetic terms; it is a purely technical measure with no inflow of capital.
Definition
A stock split is the division of existing shares into a larger number of shares at a correspondingly lower price per share. The value of the overall position and the market capitalization remain unchanged in arithmetic terms. It is a purely technical measure with no inflow of capital.
How it is calculated
Formula. New price ≈ old price ÷ split ratio; new share count = old share count × split ratio
Why it matters for small caps
For small stocks, a split can raise the optically lower share price and thus the tradability for retail investors, but it changes nothing about the fundamental valuation. Investors should not confuse a split with an increase in value.
Common misreadings
- A stock split is misunderstood as a value-enhancing measure, even though only the number of shares and the price per share change, not the total value.
In the process
Frequently asked
Does a stock split change the company's value?
No. Only the number of shares and the price per share change; market capitalization and position value remain the same in arithmetic terms.
What is a reverse split?
The opposite: several shares are consolidated into one, which optically raises the price per share.
Why do companies carry out splits?
Often to lower the optical share price and make the stock easier for retail investors to trade.
Related terms
Education only, not investment advice. Ranges and thresholds are didactic orientation values, not an official standard.