The single greatest edge an investor can have is a long-term orientation.
What is a Protective Put?
A protective put is like buying insurance for your stocks. You pay a premium (the put cost) to guarantee you can sell at a specific price, even if the market crashes.
The Insurance Analogy
Car Insurance
- • You pay a premium each year
- • If nothing happens, you "lose" the premium
- • If you crash, insurance pays
- • You hope you never need it
Protective Put
- • You pay a premium for the put
- • If stock stays flat/rises, put expires worthless
- • If stock crashes, put pays off
- • You hope you never need it
How Protective Puts Work
You own shares
You have 100 shares of a stock you want to protect
Buy a put option
Choose a strike price = your "floor" (minimum selling price)
You're protected
No matter how far the stock falls, you can sell at the strike price
Real Example: Protecting Apple Shares
You own
100 shares of AAPL at $175
Position value
$17,500
You buy
$170 put, 3 months out
Put cost
$5.00 × 100 = $500
Your Protection Level
Maximum loss = $500 (put cost) + $500 (stock drop to strike)
No matter if AAPL drops to $150, $100, or even $0, your loss is capped at $1,000.
The Three Outcomes
| AAPL at Expiration | Stock P/L | Put Value | Total P/L |
|---|---|---|---|
| $200 (up 14%) | +$2,500 | $0 (expires worthless) | +$2,000 |
| $175 (flat) | $0 | $0 (expires worthless) | -$500 |
| $150 (down 14%) | -$2,500 | +$2,000 ($170-$150) | -$1,000 |
| $100 (crash!) | -$7,500 | +$7,000 ($170-$100) | -$1,000 |
Put cost of $500 included in all calculations
Key insight: Without the put, a crash to $100 = -$7,500 loss. With the put = only -$1,000 loss. You paid $500 for this peace of mind.
Choosing Your Strike Price
| Strike Type | Cost | Protection | Like Insurance |
|---|---|---|---|
| ATM ($175) | Expensive | Full protection | $0 deductible |
| 5% OTM ($166) | Medium | After 5% drop | $500 deductible |
| 10% OTM ($157) | Cheap | After 10% drop | $1,000 deductible |
When to Use Protective Puts
✓ Good use cases
- • Large concentrated positions (>10% of portfolio)
- • Stocks with big unrealized gains to protect
- • Before uncertain events (elections, recessions)
- • When you need the money soon but want upside
✗ Not ideal
- • Small positions (cost not worth it)
- • Highly diversified portfolios
- • Long time horizons (decades)
- • When you're comfortable holding through dips
Protective Put vs Stop-Loss Order
| Feature | Protective Put | Stop-Loss |
|---|---|---|
| Cost | Premium required | Free |
| Flash crash protection | Yes - guaranteed floor | No - can trigger and bounce back |
| Forces you to sell | No - it's your choice | Yes - automatic |
| Slippage risk | None - guaranteed price | Can sell below target |