The Bear Put Spread
A defined-risk bearish trade. Learn how buying a put and selling a lower one builds a cheaper way to profit from a fall, with both profit and loss capped.
- ·A bearish view
- ·Buy a put, sell a lower put
- ·Capped cost and capped profit
- ·The breakeven
- ·When to prefer it over a long put
- ·Reading the real payoff
When you expect RELIANCE to drift lower, the first instinct is to buy a put. It works, but a lone at-the-money put is expensive, and time decay grinds against you the whole time you hold it. The bear put spread is the disciplined version of that bearish bet. You still buy the put you want, but you also sell a lower put to claw back part of the cost. The result is a cheaper, defined-risk trade with a known maximum loss and a known maximum profit. You give up the dream of an unlimited windfall on a crash, but in exchange you pay less, you breakeven sooner, and you sleep better. This chapter walks the whole structure on the real RELIANCE payoff.
The two legs
A bear put spread is built from two puts at different strikes, both expiring on the same day, 28 July 2026. You buy the higher-strike put and sell the lower-strike put. Selling the lower put brings in a premium that pays for part of the put you wanted to own.
| Leg | Action | Strike | Type | Premium per share | Per lot of 500 |
|---|---|---|---|---|---|
| 1 | Buy | 1320 | Put | about Rs 31 | Rs 15,590 paid |
| 2 | Sell | 1280 | Put | about Rs 15 | Rs 7,381 received |
You pay Rs 15,590 for the 1320 put and collect Rs 7,381 for the 1280 put. Your net debit, the cash that actually leaves your account, is about Rs 8,210. That single number is the most important figure in the whole trade, because it is also the most you can lose. Compare it to buying the 1320 put alone, which would tie up the full Rs 15,590. The sold 1280 put has roughly halved your cost of entry.
A bear put spread is a bearish, defined-risk debit trade. You buy a higher put and sell a lower put. The sold put funds part of the cost, so you pay less and risk less than a lone put. In return, your profit is capped once price falls below the lower strike.
Reading the real payoff
The diagram below is the genuine payoff for this position, built from OpenAlgo's strategy maths on RELIANCE at spot Rs 1,318, ATM strike 1320, lot 500, about 32 days to expiry. The solid white line is what the spread is worth at expiry. The dotted cyan line is what it is worth today, before time has done its work. The amber dotted vertical marks the spot at 1320, and the amber dot marks the breakeven. Let us walk the solid line from right to left, in the direction the trade wants price to travel.
On the right, the line is flat and negative. For any expiry price at or above 1320, both puts finish out-of-the-money and expire worthless. You lose the whole net debit, about Rs 8,210, and the loss does not get any worse no matter how high RELIANCE climbs. Whether the stock finishes at 1320 or rallies to 1450, your loss is the same capped Rs 8,210. That flat ceiling on your loss is the defined-risk promise of the structure.
In the middle, the line slopes down and to the left as price falls. Once RELIANCE drops below 1320, your bought put starts gaining intrinsic value rupee for rupee, and the position improves with every step down. The line crosses zero at the breakeven of 1304, which is the 1320 strike minus the Rs 16 or so of net debit per share. Above 1304 you are still in a small loss; below it you move into profit.
On the left, the line flattens again, this time at a profit. Here is the catch that the lower put introduces. Once price falls to 1280, your sold 1280 put also goes in-the-money and starts working against you, cancelling out any further gains on your bought put. From 1280 downward the two puts move together, and your profit stops growing. The line locks flat at the maximum profit of about Rs 11,790. It does not matter whether RELIANCE finishes at 1280 or collapses to 1100; your profit is the same Rs 11,790. You traded away the open-ended crash payoff for a cheaper, capped trade.
The three numbers
Every spread is described by three numbers. For this bear put spread they are exact, and they come straight from the engine.
| Number | Value | What it means |
|---|---|---|
| Breakeven | 1304 | Below this expiry price the spread makes money |
| Max profit | Rs 11,790 | Earned at or below 1280 at expiry |
| Max loss | Rs 8,210 | The net debit, lost at or above 1320 at expiry |
Notice the symmetry hiding in these numbers. The two strikes are 40 rupees apart, so on 500 shares the whole spread is worth at most Rs 20,000 at expiry. Your maximum profit of Rs 11,790 plus your maximum loss of Rs 8,210 add up to exactly that Rs 20,000. The width of the strikes sets the size of the playing field, and your net debit decides where the dividing line between the two outcomes sits.
Three endings for this spread. RELIANCE at 1330 on expiry: both puts expire worthless, you lose the full Rs 8,210. RELIANCE at 1304: you breakeven, near zero. RELIANCE at 1270: you are well below the lower strike, and you collect the full Rs 11,790, the most this trade can ever pay.
When to prefer it over a long put
A bear put spread is not always the right tool. It shines in a specific situation, and knowing that situation is what separates a thoughtful trader from someone copying shapes.
- You expect a measured fall, not a crash. If you think RELIANCE will slide toward 1280 but not collapse to 1100, the lone put is paying for upside you do not expect to use. The spread keeps the part of the move you actually believe in and refunds you for the part you do not.
- You want to pay less and breakeven sooner. The lone 1320 put costs Rs 15,590 and only breaks even near 1289. The spread costs Rs 8,210 and breaks even at 1304, a full 15 rupees higher, so price has less distance to travel before you are in profit.
- You want defined risk you can size. Because the most you can lose is the Rs 8,210 debit, known in advance, you can size the position precisely and never face a surprise.
The cost of all this is the cap. If RELIANCE truly cratered, the lone put would keep paying while your spread stops at Rs 11,790. You are making a bet that the big crash is unlikely enough that the savings are worth more than the lost tail.
Choose the lower strike at the level you genuinely expect price to reach, not lower. Selling the put at 1280 says, in effect, I do not expect RELIANCE below 1280, so I will sell that part of the move to cheapen my trade. Place that short strike too far away and you barely cheapen the trade; place it too close and you cap your profit before the move has finished.
A debit spread in plain terms
It is worth naming what kind of animal this is. A bear put spread is a debit spread, meaning cash leaves your account on day one. That debit is both your cost and your maximum loss, which is a tidy feature. You can never lose more than you put in, and you know the figure before you place the order. Its mirror image, the bear call spread from the previous chapter, is a credit spread that brings cash in and caps the profit at that credit. Both express the same bearish view with the same defined risk. The debit version simply pays its cost upfront and collects at the end, while the credit version collects upfront and risks paying out at the end.
The bear put spread and the bear call spread are two routes to the same bearish, defined-risk destination. One pays a debit and profits as price falls; the other takes a credit and profits if price simply fails to rise. Pick the one whose three numbers and cash flow suit you, not by name.
Before you commit real capital, rehearse the exact two legs in sandbox trading (analyzer mode in OpenAlgo). Place the buy 1320 put and the sell 1280 put together, watch the combined payoff form on the chart, and feel how the value behaves as the modelled price drifts down toward 1280 and then stops improving. There is no faster way to turn this payoff diagram into instinct.
The bear put spread gives you a capped loss of about Rs 8,210, a breakeven at 1304, and a capped profit of about Rs 11,790 below 1280. It is the bearish twin of the bull call spread you already met, flipped left to right. Master one and you have effectively learned both.
So the bear put spread is the grown-up way to bet on a fall. You keep the defined risk a beginner needs, you cut the cost of a lone put roughly in half, and you accept a ceiling on profit in exchange. When you expect a real but measured decline in RELIANCE, this is a cleaner trade than reaching for a single expensive put and hoping for a crash. Next we leave directional bets behind entirely and learn to profit from a big move in either direction with the long straddle and strangle.