Long Put
Buying a put option to profit from a fall in the underlying asset price.
Profit / Loss Diagram
Long Put at expiration
What is this strategy?
The Long Put is the basic bearish strategy, letting a trader profit from an expected decline in the underlying asset price. By buying a put option you acquire the right — not the obligation — to sell the asset at the specified strike price on or before the expiration date.
This strategy suits traders expecting a decline who want their risk capped. Maximum gain is limited and is reached as the asset falls below the strike, with the theoretical maximum being the strike minus the premium paid, achieved if price reaches zero. The loss is capped at the premium paid for the option.
The Long Put has a risk-reward profile that mirrors the Long Call. It is cheaper than shorting the asset directly and provides automatic risk protection. Breakeven is calculated by subtracting the premium from the strike price.
Construction
| Action | Instrument | Strike | Expiration | Example |
|---|---|---|---|---|
| BUY | 1 Put | ATM or slightly OTM | 30-60 DTE | +1 SPY Jun 425 Put |
Example
Scenario: SPY trades at $430. You expect a correction over the next two months.
- Option Purchased +1 SPY Jun 425 Put @ $4.00
- Total Cost $400 (4.00 × 100 multiplier)
- Maximum Gain $4,100 (425 strike − 4 premium × 100)
- Maximum Loss $400 (premium paid)
- Breakeven $421.00 (425 strike − 4 premium)
- Profit at Expiration at $400 $2,100 (425−4−400) × 100
The Greeks
Rises as price falls. An ATM put has a delta near −0.50, gaining about $50 if the underlying falls $1.
Decreases with the passage of time. You lose value daily if the price stays flat.
Rises when implied volatility increases, which benefits the put buyer.
Delta accelerates as price falls. Your bearish exposure grows as you move further into the money.
Position Management
- 01 Define Exit Points Set a stop loss at 25–50% of the premium. If you are down $200 on a $400 position, close it rather than riding it to zero.
- 02 Sell When In the Money Do not wait for expiration. If your put is in the money with substantial gains, consider closing to lock them in.
- 03 Monitor Volatility A rise in implied volatility helps your position. If it falls, your put loses value even if price drifts slightly lower.
- 04 Time Management Near Expiration Under 7 days to expiration, theta accelerates. Decide whether to close with partial gains or let it expire if it is out of the money.
- 05 Roll Down If it falls significantly, consider selling this put and buying one at a lower strike to keep bearish exposure at a reduced cost.