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The bear put spread is a defined-risk options strategy designed for a situation where a moderate decline is expected, not a crash. It allows a trader to express a bearish view on a stock without taking on the severe capital exposure of shorting shares or the high capital decay of buying single out-of-the-money puts.
This article explains how the strategy is constructed and the payoff formulas that determine profit and loss.
Key Takeaways
- A bear put spread involves buying a higher strike put and selling a lower strike put on the same underlying with the same expiry, which reduces the net premium paid compared to buying a put outright.
- Both maximum profit and maximum loss are known and fixed the moment the trade is placed, which makes position sizing and risk management more predictable.
- The strategy performs best when the underlying declines moderately and settles at or below the lower strike by expiry, since profit is capped thereafter.
- The premium received from selling the lower-strike put lowers the breakeven point relative to a naked long put, but it also caps the upside if the stock falls sharply.
- Since April 2025, SEBI’s contract value, margin, and expiry rules have materially changed the capital needed to run spread strategies on index options, and STT costs rose further from April 2026.
What is a Bear Put Spread
A bear put spread, also called a long put spread, is a two-leg options strategy used when an investor expects the price of a stock or index to fall, but not collapse. It is built by:
- Buying one put option at a higher strike price (this is the primary bearish position).
- Selling one put option at a lower strike price, with the same expiry date and same lot size.
The premium collected from selling the lower-strike put partially offsets the premium paid for the higher-strike put. This lowers the net cost of the trade relative to buying a single put, but it also limits the profit the position can generate if the underlying asset falls sharply.
Also Read About: Bear Call Spread
How the Payoff Works
The strategy has three components that determine the outcome at expiry: the net premium paid, the maximum profit, and the maximum loss.
| Component | Formula |
| Net Premium Paid | Premium of long put − Premium of short put |
| Maximum Loss | Net Premium Paid (occurs if price closes at or above the higher strike) |
| Maximum Profit | (Higher Strike − Lower Strike) - Net Premium Paid (occurs if price closes at or below the lower strike) |
| Breakeven Price | Higher Strike − Net Premium Paid |
Example:
Assume a stock is trading at ₹1,000 and an investor expects a moderate decline over the next month, but does not expect a crash.
| Action | Strike Price | Premium |
| Buy 1 Put | ₹1,000 | ₹40 |
| Sell 1 Put | ₹950 | ₹20 |
| Net Premium Paid | — | ₹20 |
Using the formulas above:
- Maximum Loss = ₹20 per share (paid upfront), incurred if the stock closes at or above ₹1,000.
- Maximum Profit = (₹1,000 − ₹950) − ₹20 = ₹30 per share, achieved if the stock closes at or below ₹950.
- Breakeven Price = ₹1,000 − ₹20 = ₹980.
The table below shows the payoff at different closing prices, assuming a lot size of 1 share for simplicity:
| Stock Price at Expiry | Long Put Payoff | Short Put Payoff | Net P&L |
| ₹1,050 | 0 | 0 | −₹20 |
| ₹1,000 | 0 | 0 | −₹20 |
| ₹980 | ₹20 | 0 | ₹0 |
| ₹960 | ₹40 | 0 | ₹20 |
| ₹950 | ₹50 | 0 | ₹30 |
| ₹930 | ₹70 | −₹20 | ₹30 |
| ₹900 | ₹100 | −₹50 | ₹30 |
Bear Put Spread vs a Plain Long Put
| Factor | Bear Put Spread | Long Put (single leg) |
| Upfront cost | Lower (premium offset by short leg) | Higher |
| Maximum loss | Limited to net premium | Limited to premium paid |
| Maximum profit | Capped at spread width minus net premium | Uncapped as price falls toward zero |
| Breakeven | Closer to current price (easier to reach) | Further from current price |
| Best suited for | Moderate, defined downside view | Sharp or open-ended downside view |
| Margin requirement | Lower, since risk is defined | Only premium outflow, but no cap on gain |
When Investors Use Bear Put Spread Strategy
When an investor is moderately bearish on a stock or index ahead of an earnings result, macro event, or technical breakdown, but does not expect an extreme move.
When implied volatility is elevated and buying a single put looks expensive relative to the expected move.
When an investor wants a known, fixed-risk trade rather than an open-ended options position.
As a lower-cost alternative to shorting the underlying stock or futures, which carry margin requirements and unlimited loss potential on the upside.
Also Read About: What is Bull Call Spread?
Advantages and Limitations of Bear Put Spread Strategy
Advantages
- Defined and known maximum loss at the time of entry.
- Lower upfront cost than buying a put outright.
- Breakeven point is closer to the current price than with a plain long put.
Limitations
- Profit is capped, so the strategy underperforms a plain long put if the underlying falls sharply.
- Two legs mean two sets of transaction costs, including brokerage and STT.
- Requires accurate timing, since the position still loses money if the underlying does not fall before expiry.
SEBI Regulatory Framework for Options Traders in India (2026)
Anyone constructing a bear put spread on Indian index or stock options should be aware of the regulatory changes SEBI has phased in since October 2024, several of which affect how spread strategies are margined and executed:
- Higher contract values: SEBI raised the minimum contract value for index derivatives to the ₹15–20 lakh band, which increased lot sizes for major indices and raises the capital needed to run even a defined-risk spread.
- One weekly expiry per exchange: NSE now offers weekly expiry only on Nifty. While BSE offers weekly expiry only on Sensex, other indices trade on a monthly cycle. This affects how frequently short-dated spreads can be structured.
- Upfront premium collection: Option buyers must pay the full premium upfront, and there is no intraday leverage on the buying leg of a spread.
- Intraday position monitoring: Exchanges now take multiple random intraday snapshots of position limits rather than checking only at day end, so both legs of a spread must stay within limits throughout the session, not just at close.
- Extreme Loss Margin near expiry: An additional margin applies to short option positions expiring within two trading days, which affects the short leg of a bear put spread held into expiry week.
- Removal of calendar spread margin benefit on expiry day: Positions previously margined at a discount now require full margin on expiry day, which can matter for traders rolling spreads.
Since these rules are revised periodically, traders should verify the current lot sizes, margin requirements, and expiry calendars on the NSE or BSE websites or with their brokers before placing a trade.
Tax Treatment of Bear Put Spread
For most active traders, profit or loss from options strategies, including a bear put spread, is treated as non-speculative business income under Section 43(5) of the Income Tax Act (carried forward as Section 66 under the Income Tax Act, 2025, effective from April 1, 2026), and not as capital gains. This has several practical implications:
- Tax rate: Net F&O income is added to total income and taxed at the investor’s applicable income tax slab rate, not at a flat capital gains rate.
- Turnover calculation: Turnover for tax purposes is the absolute sum of profits and losses from the trade, plus the premium received on options sold, and is relevant for determining whether a tax audit applies.
- Tax audit: A tax audit under Section 44AB becomes mandatory if F&O turnover exceeds ₹10 crore in a year, or if turnover is between ₹1 crore and ₹10 crore and profit is below 6% of turnover, and the investor has opted out of presumptive taxation.
- Loss carry-forward: Losses from a bear put spread, like other non-speculative business losses, can be carried forward for up to 8 assessment years and set off against future non-speculative business income.
- STT as a deductible expense: Securities Transaction Tax paid on both legs of the spread can be claimed as a business expense when computing business income, provided the income is reported as business income and not capital gains.
- STT rates from April 1, 2026: Following Budget 2026, STT on options premium rose from 0.10% to 0.15%, and STT on futures rose from 0.02% to 0.05%. Since a bear put spread involves two option legs, both the buy and sell legs attract STT on premium value, which raises the effective cost of the strategy compared to before April 2026.
- Filing requirement: Traders reporting F&O income as business income must file ITR-3 by the July 31 deadline for non-audit cases.
Conclusion
A bear put spread is a way to express a moderately bearish view with a known, capped downside and a lower entry cost than an outright put purchase, at the price of giving up unlimited profit potential if the underlying falls sharply. Before placing the trade, it is worth confirming current lot sizes and margin rules under SEBI’s evolving derivatives framework, factoring in the STT applicable on both legs, and deciding in advance how the resulting gain or loss will be reported for tax purposes.
