A share split can have an important relationship with a stock’s liquidity because it reduces the price of each individual share while increasing the number of shares outstanding proportionally. For example, in a 2-for-1 split, each shareholder receives two shares for every one previously owned, while the market price per share is approximately halved. The overall market value of the investment does not automatically change because of the split itself.

One potential benefit is improved trading accessibility. When a company's share price becomes lower, more retail investors may find individual shares easier to purchase. This can potentially increase the number of market participants and encourage greater trading activity. Higher participation may contribute to stronger liquidity, meaning investors can generally buy or sell shares more easily without significantly affecting the market price.

A share split can also increase the number of shares available for trading. Although the company's ownership structure and total market capitalization remain proportionally unchanged, the larger share count can make individual transactions easier to execute in smaller increments.

However, a share split does not guarantee greater liquidity. Liquidity depends on several factors, including investor interest, trading volume, company size, institutional participation, and overall market conditions. A stock with limited investor demand may remain relatively illiquid even after a split.

Therefore, the relationship between share splits and liquidity is primarily indirect. By lowering the nominal price per share and increasing the number of shares outstanding, a split can make a stock more accessible and potentially encourage trading activity. Investors should nevertheless evaluate actual trading volume and bid-ask spreads rather than assuming that every share split will automatically improve liquidity.