Put ZEBRA at a glance
| Construction | Buy 2 puts three strikes above the money and sell 1 at the money put, all in the front month expiration. |
|---|---|
| Outlook | Bearish |
| Volatility view | IV neutral |
| Max profit | Twice the long strike minus the short strike minus the net debit, times 100, if the stock falls to zero. |
| Max loss | Net debit times 100. |
| Breakeven | Breakeven = long strike minus one half of the net debit, when that level is at or above the short strike. |
| Experience level | Advanced |
| Also called | Put zero extrinsic back ratio, Bearish ZEBRA |
How a put zebra works
The put ZEBRA, also called a bearish ZEBRA or put zero extrinsic back ratio, is the mirror image of the call ZEBRA. The two long puts are in the money, so most of their price is intrinsic value, while the short at the money put carries the most extrinsic value on the chain. When the strikes are chosen well, the extrinsic value you sell roughly matches the extrinsic value you buy, and the net debit is close to pure intrinsic value. You get short stock like movement without paying much time value or borrowing shares.
At expiration, if the stock is at or above the long put strike, all puts expire worthless and you lose the net debit. Between the long strike and the short strike, both long puts gain, so profit grows twice as fast as the stock falls. Below the short strike, the short put offsets one long put and the position gains one for one, like 100 short shares. Profit is technically limited because a stock cannot fall below zero, but otherwise the payoff tracks a short sale.
Before expiration, delta is close to minus 100 while theta and vega stay small because the extrinsic values offset. American style puts complicate the balance slightly: in the money puts carry an early exercise premium, so their prices can sit a little above European model values, and the calculator's American pricing captures that. As the stock moves, the extrinsic balance drifts and the position gains or loses some time decay. Rolling to fresh strikes resets the design.
Put ZEBRA example with real numbers
With the stock at $100, implied volatility at 30%, a 4.1% risk free rate and no dividend, you would buy 2 107.5 puts (32 days) at $8.35, sell 1 100 put (32 days) at $3.39. That is a net debit of $1,331. At expiration a maximum profit of $10,169 and a maximum loss of $1,331, with a breakeven at $100.84. The lognormal chance of profit is 54%.
These are theoretical American option prices from the Bjerksund and Stensland model, not live quotes. Load any ticker in the put zebra calculator above to run the same math on real market prices.
When to use a put zebra
- You are bearish and want short stock like exposure with a defined maximum loss.
- The stock is hard or expensive to borrow for a direct short sale.
- You want to avoid the steady time decay of a single long put.
- You want to hedge a long stock position with close to 100 deltas of protection at a known cost.
Max profit, max loss and breakeven
Maximum profit
Twice the long strike minus the short strike minus the net debit, times 100, if the stock falls to zero. Below the short strike, profit grows dollar for dollar as the stock declines.
Maximum loss
Net debit times 100. You lose it if the stock closes at or above the long put strike at expiration.
Breakeven
Breakeven = long strike minus one half of the net debit, when that level is at or above the short strike. If it lands below the short strike, breakeven = twice the long strike minus the short strike minus the net debit. With zero extrinsic value, both point to roughly the current stock price.
Put ZEBRA Greeks
- Delta: Delta is close to minus 100 at entry, similar to being short 100 shares.
- Gamma: Gamma is small near the current price and turns positive as the stock rises toward the long strike, where the long puts dominate.
- Theta: Theta is close to zero by design, because the extrinsic value bought and sold roughly cancels.
- Vega: Vega is small, so the trade is mostly a directional bet rather than a volatility trade.
See the live numbers for your position in the Greeks tab of the calculator, or explore a single option in the options Greeks calculator.
Early exercise and assignment risk
In the money American puts are the options most likely to be worth exercising early, and a put ZEBRA owns two of them. That is an opportunity rather than a threat: when a long put's time value shrinks to almost nothing, exercising it sells shares at the strike now, and the cash can earn interest sooner. Higher interest rates make that choice more valuable. If you exercise without owning shares, you create a short stock position, so most traders sell the put instead unless the bid is below intrinsic value.
The short at the money put can be assigned early if the stock falls well below its strike and its time value fades. Assignment means you buy 100 shares, which one of your long puts can offset: exercise it to sell those shares at the higher strike. You are left with a single long put and a smaller bearish position. Dividends cut the other way for puts, since an upcoming dividend makes puts more valuable, so early exercise of the short put is less likely just before an ex dividend date. While it stays an options position, a put ZEBRA never owes dividends.
The calculator's Early exercise risk tab flags short legs that are likely to be assigned. For a single option, use the early exercise calculator or read how early exercise and assignment work.
Pros and cons
Pros
- Short stock like downside exposure without borrowing shares.
- Maximum loss capped at the net debit.
- Little time decay compared with a long put.
- No dividend payments, unlike a direct short sale.
Cons
- Must be rolled to maintain exposure beyond expiration.
- The full net debit is lost if the stock rises above the long strike.
- Put prices already reflect borrow costs and dividends, so the benefit is not free.
- The short put can be assigned early after a sharp decline.
How to manage a put zebra
- Rebalance strikes when the stock moves enough that the extrinsic values no longer offset.
- Roll well before expiration to avoid pin risk on the short put.
- Sell in the money long puts rather than exercising them, unless the bid is below intrinsic value.
- Size each ZEBRA as 100 short shares of exposure, not by its net debit.
Put ZEBRA FAQ
What is a put ZEBRA?
A put ZEBRA is a bearish ratio spread that buys two in the money puts and sells one at the money put, built so the extrinsic value roughly cancels. It behaves like short stock below the short strike while capping the loss at the net debit. ZEBRA stands for zero extrinsic back ratio.
Is a put ZEBRA a good alternative to shorting stock?
A put ZEBRA is a common alternative to shorting stock when you want defined risk. It avoids borrowing shares, paying dividends, and unlimited upside losses. In exchange it expires, must be rolled, and its prices already reflect borrow and dividend costs.
What is the maximum loss on a put ZEBRA?
The maximum loss on a put ZEBRA is the net debit times 100. That happens if the stock closes at or above the long put strike at expiration. The loss cannot exceed the debit no matter how high the stock goes.
Should you exercise the long puts in a put ZEBRA early?
You usually should not exercise the long puts early unless their remaining time value is close to zero. Exercising creates a short stock position if you do not own shares. Selling the put is normally better, unless the bid is below intrinsic value.
Related strategies
Call ZEBRA
A call ZEBRA, short for zero extrinsic back ratio, is a stock replacement strategy that buys two in the money calls and sells one at the money call so the time value you pay roughly cancels the time value you collect.
Synthetic Short Stock
Synthetic short stock is a short call and a long put at the same strike and expiration, a combination that behaves almost exactly like being short 100 shares.
Long Put
A long put is the purchase of a single put option, which gives you the right to sell 100 shares at the strike price on or before expiration.
Put Ratio Backspread
A put ratio backspread sells one put and buys two lower strike puts in the same expiration, and it profits most from a sharp decline in the stock.
Educational tool, not financial advice. Calculations are theoretical and depend on your inputs; real fills, fees, early assignment and dividends can change results. Options involve risk and are not suitable for every investor.