Reverse Stock Split: Definition, Mechanics, and Real-World Examples

A reverse stock split consolidates the number of existing shares of corporate stock into fewer, proportionally more valuable, shares. This corporate action is typically undertaken to boost the stock price and ensure compliance with stock exchange listing requirements.

Ratio and Implementation

A reverse stock split is expressed as a ratio, such as 1-for-10, meaning that shareholders receive one new share for every ten they hold. Due to the consolidation, the stock becomes more valuable and the total number of shares outstanding decreases.

Example Computation

For instance, if a shareholder owns 100 shares, each valued at $1, a 1-for-10 reverse split would result in the shareholder owning 10 shares, with each valued at $10. Mathematically:

Accounting and Administration

In the company’s books, the value of equity remains unchanged, although the number of shares and their per-share value adjusts correspondingly.

Reasons for Reverse Stock Splits

Companies resort to reverse splits to:

• Avoid delisting from stock exchanges due to a low share price.
• Enhance the stock’s perception among investors.
• Reduce the number of outstanding shares to increase per-share value.

Notable Examples

Citigroup (2011): Executed a 1-for-10 reverse split to increase share price and improve its market perception after the 2008 financial crisis.

AIG (2009): Implemented a 1-for-20 split to prevent NYSE delisting and stabilize the stock.

Reverse Stock Split vs. Stock Split

• Reverse Stock Split: Reduces the number of shares and increases the price per share.
• Stock Split: Increases the number of shares and reduces the price per share without affecting the total market value.

Dilution

Reverse splits do not dilute ownership; each shareholder retains the same percentage of the company—contrasted with issuing new shares which can dilute existing ownership.

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