✂️ Forward & Reverse Splits
Stock Split Calculator
Understand Your Holdings After Any Split
Calculate new share count, adjusted price, and portfolio value for any stock split ratio — forward splits, reverse splits, and complex ratios.
2-for-13-for-25-for-1
Reverse 1-for-5NSE · BSE · NYSEBonus Shares
Currency:
Common Splits:
Your Holding Details
Current Shares Owned
110,000
Current Share Price
₹
110,000
Split Ratio
New Shares
Old Shares
2
new shares
for
1
old share
Forward Split
Before vs After Split
Before Split
Shares
100
Share Price
₹1,000
Portfolio
₹1,00,000
After Split
New Shares
200
Adj. Price
₹500
Portfolio
₹1,00,000
Share Visualization
Before:
100
After:
200
🛡️
Portfolio Value — Unchanged
₹1,00,000
New Share Count
200
After split
Adjusted Price
₹500
Per share after split
Portfolio Value
₹1,00,000
Unchanged by split
Split Type
Forward
2-for-1
Click Any Common Split to Apply
Stock Split Calculator — Formula & How It Works
A stock split is a corporate action where a company divides its existing shares into multiple shares. The total market capitalization stays the same — only the number of shares and price per share change. Our free Stock Split Calculator instantly computes new share count, adjusted price, and confirms portfolio value is unchanged.
Stock Split Calculation Formula
New Shares = Current Shares × (Numerator ÷ Denominator)
Adjusted Price = Current Price × (Denominator ÷ Numerator)
Portfolio Value = Current Shares × Current Price = New Shares × Adjusted Price
Example (2-for-1): 100 shares × ₹1,000 → 200 shares × ₹500 = ₹1,00,000
Adjusted Price = Current Price × (Denominator ÷ Numerator)
Portfolio Value = Current Shares × Current Price = New Shares × Adjusted Price
Example (2-for-1): 100 shares × ₹1,000 → 200 shares × ₹500 = ₹1,00,000
Forward Split vs Reverse Split
| Type | Ratio Example | Effect on Shares | Effect on Price | Why Companies Do It |
|---|---|---|---|---|
| Forward Split | 2-for-1, 3-for-1, 5-for-1 | Increases ×2, ×3, ×5 | Decreases ÷2, ÷3, ÷5 | Make shares affordable, increase liquidity |
| Reverse Split | 1-for-5, 1-for-10, 1-for-20 | Decreases ÷5, ÷10, ÷20 | Increases ×5, ×10, ×20 | Boost price, meet listing requirements, reduce shareholders |
| Complex Split | 3-for-2, 5-for-4, 6-for-5 | Increases partially | Decreases partially | Fine-tune price without dramatic change |
Famous Stock Splits in History
| Company | Split Ratio | Year | Pre-Split Price | Post-Split Price |
|---|---|---|---|---|
| Apple (AAPL) | 4-for-1 | 2020 | ~$500 | ~$125 |
| Tesla (TSLA) | 5-for-1 | 2020 | ~$2,200 | ~$440 |
| Alphabet (GOOGL) | 20-for-1 | 2022 | ~$2,700 | ~$135 |
| MRF (India NSE) | No split ever | — | ₹1,00,000+ | — |
| Reliance Industries | 1-for-2 Bonus | 2017 | ₹1,500+ | ₹750+ (adjusted) |
| HDFC Bank | 2-for-1 | 2019 | ₹2,500+ | ₹1,250+ |
Bonus Shares vs Stock Split (India)
| Aspect | Bonus Shares | Stock Split |
|---|---|---|
| How it works | Company issues new shares from reserves (1:1 = double shares) | Face value divided; same shares restructured |
| Effect on face value | Face value unchanged | Face value reduced proportionally |
| Effect on paid-up capital | Paid-up capital increases | No change in paid-up capital |
| Tax (India) | Bonus shares: cost = 0, LTCG applies on full sale value | Original cost basis proportionally split |
| Calculator usage | Use same formula: 1-for-1 bonus = 2-for-1 split equivalent | Enter ratio directly |
Cost Basis After Stock Split
Your total cost basis never changes after a split — only the per-share cost basis changes. This is important for capital gains tax calculations.
Original Cost Basis = ₹50,000 (bought 100 shares at ₹500 each)
After 2-for-1 split: 200 shares, each with cost basis of ₹250
Total Cost Basis = ₹50,000 (unchanged)
LTCG = Sale Price − Cost Basis (per share adjusted for splits)
After 2-for-1 split: 200 shares, each with cost basis of ₹250
Total Cost Basis = ₹50,000 (unchanged)
LTCG = Sale Price − Cost Basis (per share adjusted for splits)
Frequently Asked Questions
Does a stock split increase my investment value?▾
No. A stock split never changes your total portfolio value. If you owned 100 shares at ₹1,000 each (₹1,00,000 total), after a 2-for-1 split you'll own 200 shares at ₹500 each — still exactly ₹1,00,000. Stock splits only make shares more accessible by reducing the per-share price, potentially increasing trading volume and liquidity.
Why do companies do reverse stock splits?▾
Companies use reverse splits to increase their share price, typically for three reasons: (1) To meet exchange minimum price requirements — NSE/BSE require ₹1+, NYSE/NASDAQ require $1+. Companies below this face delisting. (2) To attract institutional investors who may avoid low-priced "penny stocks". (3) To reduce shareholder count and administrative costs. A reverse split is often (but not always) a bearish signal — it means the stock price has fallen significantly.
What happens to my limit orders and stop losses after a split?▾
Most brokers (Zerodha, Groww, Fidelity, etc.) automatically adjust limit orders and stop losses in proportion to the split. For a 2-for-1 split, a limit order at ₹1,000 becomes ₹500, and the quantity doubles. However, you should always verify this with your specific broker on split ex-date — policies vary. Options positions are also adjusted by exchanges automatically.
How does a stock split affect dividends?▾
After a split, the dividend per share is adjusted proportionally — so your total dividend income stays the same. Example: If a company paid ₹10/share before a 2-for-1 split, it will pay ₹5/share after (you now own 2× shares). Dividend yield (%) remains unchanged immediately after the split since both price and dividend per share are halved.
What is a 3-for-2 stock split?▾
In a 3-for-2 split, you receive 3 new shares for every 2 you owned — a 50% increase. Example: 100 shares at ₹150 → 150 shares at ₹100. Portfolio value unchanged at ₹15,000. If you own an odd number of shares (say 101), you'd get 151.5 shares — fractional shares are handled differently by each broker (cash payment for fraction, or rounding). Use our calculator's 3/2 ratio to model this exactly.
What is the difference between a bonus issue and a stock split in India?▾
Both increase share count and reduce price, but they're legally different. A bonus issue distributes free shares from company reserves (face value unchanged, paid-up capital rises). A stock split divides existing shares (face value reduces proportionally, paid-up capital unchanged). Tax treatment also differs: bonus shares have zero cost basis (full sale price is taxable as capital gain); split shares inherit proportional cost basis. For calculation purposes, you can use this calculator for both — a 1:1 bonus = 2-for-1 split in terms of share count and price effect.
Do I need to do anything when a stock split happens?▾
No action required from your side. Your broker, depository (NSDL/CDSL in India), or transfer agent automatically adjusts your account on the ex-split date. You'll see the updated share count and adjusted price in your Demat account. The record date determines which shareholders are eligible. If you buy after the ex-date, you get the post-split shares. Update your own portfolio tracking spreadsheets manually if you use one.
Is this stock split calculator free?▾
100% free, no registration needed. Works for any split ratio — forward splits (2:1, 3:1, 5:1, 10:1, 20:1), reverse splits (1:2, 1:5, 1:10), complex splits (3:2, 5:4, 6:5), and bonus issues. All calculations run instantly in your browser. Works for NSE, BSE, NYSE, NASDAQ, LSE, ASX and any other market.
✂️ Forward & Reverse Splits
Stock Split Calculator
Understand Your Holdings After Any Split
Calculate new share count, adjusted price, and portfolio value for any stock split ratio — forward splits, reverse splits, and complex ratios.
2-for-13-for-25-for-1
Reverse 1-for-5NSE · BSE · NYSEBonus Shares
Currency:
Common Splits:
Your Holding Details
Current Shares Owned
110,000
Current Share Price
₹
110,000
Split Ratio
New Shares
Old Shares
2
new shares
for
1
old share
Forward Split
Before vs After Split
Before Split
Shares
100
Share Price
₹1,000
Portfolio
₹1,00,000
After Split
New Shares
200
Adj. Price
₹500
Portfolio
₹1,00,000
Share Visualization
Before:
100
After:
200
🛡️
Portfolio Value — Unchanged
₹1,00,000
New Share Count
200
After split
Adjusted Price
₹500
Per share after split
Portfolio Value
₹1,00,000
Unchanged by split
Split Type
Forward
2-for-1
Click Any Common Split to Apply
Stock Split Calculator — Formula & How It Works
A stock split is a corporate action where a company divides its existing shares into multiple shares. The total market capitalization stays the same — only the number of shares and price per share change. Our free Stock Split Calculator instantly computes new share count, adjusted price, and confirms portfolio value is unchanged.
Stock Split Calculation Formula
New Shares = Current Shares × (Numerator ÷ Denominator)
Adjusted Price = Current Price × (Denominator ÷ Numerator)
Portfolio Value = Current Shares × Current Price = New Shares × Adjusted Price
Example (2-for-1): 100 shares × ₹1,000 → 200 shares × ₹500 = ₹1,00,000
Adjusted Price = Current Price × (Denominator ÷ Numerator)
Portfolio Value = Current Shares × Current Price = New Shares × Adjusted Price
Example (2-for-1): 100 shares × ₹1,000 → 200 shares × ₹500 = ₹1,00,000
Forward Split vs Reverse Split
| Type | Ratio Example | Effect on Shares | Effect on Price | Why Companies Do It |
|---|---|---|---|---|
| Forward Split | 2-for-1, 3-for-1, 5-for-1 | Increases ×2, ×3, ×5 | Decreases ÷2, ÷3, ÷5 | Make shares affordable, increase liquidity |
| Reverse Split | 1-for-5, 1-for-10, 1-for-20 | Decreases ÷5, ÷10, ÷20 | Increases ×5, ×10, ×20 | Boost price, meet listing requirements, reduce shareholders |
| Complex Split | 3-for-2, 5-for-4, 6-for-5 | Increases partially | Decreases partially | Fine-tune price without dramatic change |
Famous Stock Splits in History
| Company | Split Ratio | Year | Pre-Split Price | Post-Split Price |
|---|---|---|---|---|
| Apple (AAPL) | 4-for-1 | 2020 | ~$500 | ~$125 |
| Tesla (TSLA) | 5-for-1 | 2020 | ~$2,200 | ~$440 |
| Alphabet (GOOGL) | 20-for-1 | 2022 | ~$2,700 | ~$135 |
| MRF (India NSE) | No split ever | — | ₹1,00,000+ | — |
| Reliance Industries | 1-for-2 Bonus | 2017 | ₹1,500+ | ₹750+ (adjusted) |
| HDFC Bank | 2-for-1 | 2019 | ₹2,500+ | ₹1,250+ |
Bonus Shares vs Stock Split (India)
| Aspect | Bonus Shares | Stock Split |
|---|---|---|
| How it works | Company issues new shares from reserves (1:1 = double shares) | Face value divided; same shares restructured |
| Effect on face value | Face value unchanged | Face value reduced proportionally |
| Effect on paid-up capital | Paid-up capital increases | No change in paid-up capital |
| Tax (India) | Bonus shares: cost = 0, LTCG applies on full sale value | Original cost basis proportionally split |
| Calculator usage | Use same formula: 1-for-1 bonus = 2-for-1 split equivalent | Enter ratio directly |
Cost Basis After Stock Split
Your total cost basis never changes after a split — only the per-share cost basis changes. This is important for capital gains tax calculations.
Original Cost Basis = ₹50,000 (bought 100 shares at ₹500 each)
After 2-for-1 split: 200 shares, each with cost basis of ₹250
Total Cost Basis = ₹50,000 (unchanged)
LTCG = Sale Price − Cost Basis (per share adjusted for splits)
After 2-for-1 split: 200 shares, each with cost basis of ₹250
Total Cost Basis = ₹50,000 (unchanged)
LTCG = Sale Price − Cost Basis (per share adjusted for splits)
Frequently Asked Questions
Does a stock split increase my investment value?▾
No. A stock split never changes your total portfolio value. If you owned 100 shares at ₹1,000 each (₹1,00,000 total), after a 2-for-1 split you'll own 200 shares at ₹500 each — still exactly ₹1,00,000. Stock splits only make shares more accessible by reducing the per-share price, potentially increasing trading volume and liquidity.
Why do companies do reverse stock splits?▾
Companies use reverse splits to increase their share price, typically for three reasons: (1) To meet exchange minimum price requirements — NSE/BSE require ₹1+, NYSE/NASDAQ require $1+. Companies below this face delisting. (2) To attract institutional investors who may avoid low-priced "penny stocks". (3) To reduce shareholder count and administrative costs. A reverse split is often (but not always) a bearish signal — it means the stock price has fallen significantly.
What happens to my limit orders and stop losses after a split?▾
Most brokers (Zerodha, Groww, Fidelity, etc.) automatically adjust limit orders and stop losses in proportion to the split. For a 2-for-1 split, a limit order at ₹1,000 becomes ₹500, and the quantity doubles. However, you should always verify this with your specific broker on split ex-date — policies vary. Options positions are also adjusted by exchanges automatically.
How does a stock split affect dividends?▾
After a split, the dividend per share is adjusted proportionally — so your total dividend income stays the same. Example: If a company paid ₹10/share before a 2-for-1 split, it will pay ₹5/share after (you now own 2× shares). Dividend yield (%) remains unchanged immediately after the split since both price and dividend per share are halved.
What is a 3-for-2 stock split?▾
In a 3-for-2 split, you receive 3 new shares for every 2 you owned — a 50% increase. Example: 100 shares at ₹150 → 150 shares at ₹100. Portfolio value unchanged at ₹15,000. If you own an odd number of shares (say 101), you'd get 151.5 shares — fractional shares are handled differently by each broker (cash payment for fraction, or rounding). Use our calculator's 3/2 ratio to model this exactly.
What is the difference between a bonus issue and a stock split in India?▾
Both increase share count and reduce price, but they're legally different. A bonus issue distributes free shares from company reserves (face value unchanged, paid-up capital rises). A stock split divides existing shares (face value reduces proportionally, paid-up capital unchanged). Tax treatment also differs: bonus shares have zero cost basis (full sale price is taxable as capital gain); split shares inherit proportional cost basis. For calculation purposes, you can use this calculator for both — a 1:1 bonus = 2-for-1 split in terms of share count and price effect.
Do I need to do anything when a stock split happens?▾
No action required from your side. Your broker, depository (NSDL/CDSL in India), or transfer agent automatically adjusts your account on the ex-split date. You'll see the updated share count and adjusted price in your Demat account. The record date determines which shareholders are eligible. If you buy after the ex-date, you get the post-split shares. Update your own portfolio tracking spreadsheets manually if you use one.
Is this stock split calculator free?▾
100% free, no registration needed. Works for any split ratio — forward splits (2:1, 3:1, 5:1, 10:1, 20:1), reverse splits (1:2, 1:5, 1:10), complex splits (3:2, 5:4, 6:5), and bonus issues. All calculations run instantly in your browser. Works for NSE, BSE, NYSE, NASDAQ, LSE, ASX and any other market.