Stock Split Calculator

No. A split only changes how many shares you hold and their per-share price — your total position value stays the same immediately after the split (before any market movement).

A forward split (e.g. 2-for-1) increases your share count and proportionally lowers the price per share. A reverse split (e.g. 1-for-10) reduces your share count and raises the price per share, while total value is unaffected either way.

Companies often use reverse splits to lift a low share price back above an exchange's minimum listing requirement, or to make the stock appear more attractive to institutional investors who avoid very low-priced shares.

No. Your brokerage automatically adjusts your share count and cost basis when a split takes effect — this calculator is for modeling or checking the math yourself, not for executing the adjustment.