Put option is a contract that gives the buyer the right, but not the obligation, to sell an underlying asset at a specified price (strike price) within a specific time period. Put buyers are bearish—they profit when the asset price falls below the strike. The buyer pays a premium to the seller for this right.
- Right to SELL at strike price before expiration
- Buyer is bearish; Seller is bullish/neutral
- Maximum loss for buyer = premium paid
How Put Options Work
Put options let you profit from falling prices:
Put Option Example:
Stock: XYZ trading at $100
Put Option: Strike $95, Premium $3, Expires in 30 days
Scenarios at Expiration:
Stock at $85:
Intrinsic Value = $95 - $85 = $10
Profit = $10 - $3 premium = $7 (133% return)
Stock at $95:
Intrinsic Value = $0
Loss = $3 premium (100% loss)
Stock at $105:
Intrinsic Value = $0
Loss = $3 premium (100% loss)
Breakeven = Strike - Premium = $95 - $3 = $92
Quick Reference: Put Option Outcomes
| Stock Price at Expiry | Put Value | Buyer P/L |
|---|---|---|
| Below strike - premium | Profitable | Gain |
| At strike - premium | Breakeven | $0 |
| Between breakeven and strike | Small value | Loss |
| At or above strike | $0 | Max loss (premium) |
Example: Trading Put Options
Buying a Put:
| Factor | Value |
|---|---|
| Stock Price | $100 |
| Strike Price | $95 |
| Premium Paid | $3 |
| Expiration | 30 days |
| Breakeven | $92 |
| Max Loss | $3 (premium) |
| Max Gain | $92 (if stock goes to $0) |
If stock drops to $80: Put worth $15, profit = $12 (400% return).
A put option gives you the right to sell stock at the strike price. You pay a premium for this right. If the stock falls below your strike minus premium, you profit. If it doesn’t, you lose only the premium. Puts are for bearish traders or hedging.
Put Option Strategies
Long Put (Buying)
Bearish bet. Pay premium, profit if stock falls significantly. Limited risk.
Protective Put
Own stock, buy puts to protect downside. Insurance against crash.
Cash-Secured Put (Selling)
Sell puts with cash to cover potential purchase. Collect premium. Bullish strategy.
Put Spread
Buy one put, sell another at lower strike. Reduces cost but caps profit.
Put Option Greeks
| Greek | Effect on Long Put |
|---|---|
| Delta | Put gains value as stock falls (negative delta) |
| Theta | Put loses value each day (time decay) |
| Vega | Put gains value if volatility increases |
| Gamma | Delta changes faster near expiration |
When to Buy Puts
Good Conditions
- Expect significant downward move
- Implied volatility is low (options cheap)
- Need to hedge portfolio downside
Bad Conditions
- Just hoping for small dip
- IV is extremely high (puts expensive)
- Too close to expiration (theta decay)
Common Mistakes
-
Buying puts after big drop – IV spikes after crashes, making puts expensive.
-
Holding through expiration – Time decay accelerates. Take profits early.
-
Using puts as primary income – Buying puts bleeds money if wrong repeatedly.
-
Wrong strike selection – Too far OTM rarely pays off.
How JournalPlus Tracks Options
JournalPlus logs put trades with full details, helping you analyze when protective and speculative puts work best in your trading.
