What is a Stock Split?
A stock split is a corporate action where a company divides each of its existing shares into multiple smaller shares. The total number of shares outstanding increases, but the face value and market price adjust proportionally — so your total investment value is unchanged immediately after the split.
Think of it like cutting a pizza into more slices: more slices, but the same total pizza. A company with 10 crore shares at ₹2,000 each, doing a 1:2 split, becomes 20 crore shares at ₹1,000 each. Total market cap: unchanged.
Split Ratio Explained
The notation "1:5 stock split" means each existing share is divided into 5 new shares. Your holding multiplies by 5, the price drops to 1/5th. Similarly:
- 1:2 split: 1 share becomes 2 shares. Price halves. FV halves.
- 1:5 split: 1 share becomes 5 shares. Price drops to 1/5th.
- 1:10 split: 1 share becomes 10 shares. Price drops to 1/10th.
The face value (FV) of the share reduces proportionally. If FV was ₹10 and split is 1:5, new FV = ₹2. This is how companies like Infosys and TCS reduced their prices from thousands to hundreds through multiple splits over the years.
Why Companies Split Stocks
- Affordability: A ₹5,000 stock is psychologically less accessible to retail investors than a ₹500 stock — even though the investment value is identical. Splits increase participation.
- Liquidity: More shares in circulation means more daily trading volume, tighter bid-ask spreads, and easier price discovery.
- Signaling confidence: Companies typically split when they believe the stock will continue to appreciate. It's a bullish signal from management.
- Index inclusion: Some indices have price-weighted components. Lower price can help with specific inclusion criteria.
Does a Stock Split Increase Your Wealth?
No, not immediately. On the ex-split date, the stock price adjusts downward proportionally and your share count increases. Your total portfolio value is identical. Over time, if the split improves liquidity and brings in more retail buyers, the stock may appreciate more — but the split itself creates zero value.
The most famous example of a company that has never split is MRF. Its share trades at over ₹1 lakh, making it the most expensive stock in India by face value. Management deliberately keeps it high to deter short-term speculation.
Key Dates for a Stock Split
- Board announcement date: When the board approves the split
- Record date: Must hold shares on this date to be eligible
- Ex-split date: Price adjusts on this date (usually 2 days before record date)
- Credit date: New shares appear in your demat account (typically same day as ex-date)
Reverse Split — When It Goes the Other Way
A reverse split consolidates multiple shares into one. Example: 10:1 reverse split means 10 existing shares become 1 share at 10× the price. Total value unchanged. Reverse splits often signal financial distress — companies do it to meet minimum stock price requirements for exchange listing or to attract institutional investors who avoid very low-priced stocks.
Famous Indian Stock Splits
- TCS: Announced 1:1 bonus in 2004 (effectively a split) and a 1:1 split in 2019. TCS has kept share price in the ₹2,000–₹4,000 range for retail accessibility.
- Infosys: Multiple splits — 1993 (10:1), 1994 (1:1 bonus), 1997 (2:1), 1999 (2:1), 2004 (3:1), 2014 (1:1). Each split multiplied shares.
- Wipro: Multiple splits and bonuses, now has billions of shares outstanding.
- MRF: Never split — only company in India trading above ₹1 lakh per share.