Key Takeaways
- A stock split is a corporate action where a company increases its number of shares by issuing more shares to existing shareholders proportionally. This guide explains how stock splits work, why companies do them, and what they mean for investors.
What is a Stock Split?
A stock split is a corporate action where a company divides its existing shares into multiple new shares. The total value of your investment stays the same — you just hold more shares at a lower price per share.
Example: In a 2:1 stock split, for every 1 share you hold at ₹2,000, you receive 2 shares at ₹1,000 each. Same total value: ₹2,000.
Why Do Companies Split Their Stock?
Companies split their stock primarily to improve liquidity and accessibility:
- Lower price per share: A ₹10,000 share is out of reach for many retail investors. At ₹500 after a 20:1 split, more people can buy
- Improved liquidity: More shares in circulation means more buyers and sellers — easier to trade without large price impact
- Psychological signal: Splits are generally announced by well-performing companies (the stock price grew high enough to need splitting) — bullish signal
- Broader market participation: Increases the number of shareholders
How Stock Splits Work
2:1 Split
For every 1 share → 2 shares. Price halved. Most common split ratio.
5:1 Split
For every 1 share → 5 shares. Price reduced to 1/5th. Used when share price is very high.
10:1 Split
For every 1 share → 10 shares. Very high-priced stocks (MRF-type levels).
Famous Stock Splits in India
- Reliance Industries: Split multiple times over its history
- Infosys: Multiple splits during IT boom
- Wipro: Famous for very high stock price before splits
- Tesla (US): 5:1 split in 2020, 3:1 in 2022
Note: MRF has never split — its stock trades at ₹1,00,000+ making it India's most expensive share.
Stock Split vs Bonus Issue
| Feature | Stock Split | Bonus Issue |
|---|---|---|
| Face Value | Reduced proportionally | Remains same |
| Share Capital | No change | Increases |
| Reserves | No change | Reduced (transferred to share capital) |
| Effect on Price | Price adjusted downward | Price adjusted downward |
| Overall Value | Unchanged | Unchanged |
Does a Stock Split Create Value?
In theory, no — your total investment value stays the same. In practice, studies show that stocks often outperform the market in the 12 months following a split announcement, likely due to:
- The bullish signalling effect (company expects continued growth)
- Increased retail participation driving demand
- Improved liquidity attracting more institutional interest
Reverse Stock Split (Consolidation)
The opposite of a regular split: shares are combined at a higher price. Example: 1:10 reverse split converts 10 shares at ₹10 into 1 share at ₹100. Usually done by companies whose stock price has fallen so low it risks being delisted. Often a bearish signal.
