Long Put
Description
Buying a put option to profit from a decline in the underlying, paying a fixed premium for downside participation.
Setup
- Buy one put option, typically at or near the money.
- Choose an expiry that gives the expected decline room to happen.
Context
Used when you expect a sizeable downward move, or want to speculate on weakness without the mechanics of shorting the underlying itself.
Risk Profile
Maximum loss is the premium paid, realized if the underlying finishes at or above the strike. Maximum gain is large but finite: the underlying cannot fall below zero.
Pros
- Small, known maximum loss.
- Large gain potential on a sharp decline.
- No need to borrow or short the underlying.
Cons
- Premium decays every day that passes without a move.
- Underlying must fall enough to clear the breakeven before expiry.
Effect of Time
Time decay works against the position; theta erodes the premium every day.
Effect of Volatility
A rise in implied volatility increases the option's value and helps the position even before the underlying moves.
Look-Alike Strategies
Live Structure
| Position | Right | Ratio | Strike | Expiry | Premium | Fill Price | Est. Fee |
|---|---|---|---|---|---|---|---|
| Long | Put | 1 | $84500.0000 | 24 Sep 2026 | $282.7883 | $312.3333 | $25.3243 |
Estimated Cost to Assemble
An estimate of what entering this structure right now would really cost: filling every leg by crossing the spread (the ask when buying, the bid when selling) instead of at the mid-price, plus an estimated exchange fee. Real fees and fills can differ from this estimate.
Payoff & Greeks vs. Underlying Price
The Greeks curves are a Black-Scholes model using each leg's current implied volatility, holding time to expiry fixed -- not live exchange data at every price, which only exists at the current price (dashed line).
Payoff at Expiration
This structure's value and profit/loss at expiration, at a handful of specific prices: every leg's strike, every breakeven, the current spot, and the chart's own range.
| Underlying Price | Value at Expiration | Profit / Loss | Return on Cost |
|---|---|---|---|
| $67600.0000 | $16900.0000 | $16617.2117 | +5876.2% |
| $84217.2117 breakeven | $282.7883 | $0.0000 | +0.0% |
| $84414.4400 current | $85.5600 | -$197.2283 | -69.7% |
| $101400.0000 | $0.0000 | -$282.7883 | -100.0% |