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Short Strangle

The short straddle is a bet that nothing happens. The short strangle is a bet that nothing too crazy happens. You sell OTM options on both sides instead of ATM, giving yourself a wider profit zone. Less premium, but more room to be wrong on direction without losing money.

This is the bread-and-butter of professional vol sellers. It's also the trade that blows them up when they get complacent.

What You Do​

The SetupYou receive premium
Sell1 OTM call (strike above current price)
Sell1 OTM put (strike below current price), same expiry
Max Profit
Total premium
Max Loss
Unlimited
Upper BE
Call strike + prem.
Lower BE
Put strike - prem.

The Profit Zone​

This is why traders pick the strangle over the straddle for short vol.

With a short straddle, max profit is a single point (the strike). One dollar away and you're already giving back premium. With a short strangle, max profit is the entire region between your two strikes. BTC can move 5% and you still keep full premium, as long as it stays between the strikes.

The trade-off: you collect less premium, so when the underlying does breach a strike, your cushion is thinner.

How the P&L Works​

The payoff is a tent with a flat top:

  • Between the two strikes. Both options are OTM and decay toward zero. You keep the full premium. The entire zone is max profit.
  • Just outside the strikes. One option goes ITM, eating into your premium.
  • Far from either strike. Unlimited losses. The premium cushion is minimal relative to the move.

Example: Short Strangle on BTC (95k put / 105k call)​

BTC is at 100k. Sell 105k call for 3k. Sell 95k put for 2k. Total credit = 5k.

BTC at Expiry
Short Call
Short Put
P&L
$80,000
$0
-$15,000
-$10,000
$90,000
$0
-$5,000
$0
$95-105k
$0
$0
+$5,000
$110,000
-$5,000
$0
$0
$120,000
-$15,000
$0
-$10,000

BTC stays between 90k and 110k, you keep all 5k. BTC moves to 80k, you're down 10k, twice the premium collected, on a 20% move.

Explore the Payoff​

Spot at Expiry$100k
$70k$130k
Total Premium Received$5k
$1k$12k
BE $90kBE $110k$0+$5k-$20k$70kK1 $95kK2 $105k$130kSpot Price at ExpiryP&L
Settlement
$100k
P&L
+5.0k
Max Loss
Substantial
Max Gain
+$5k

When to Use​

  • You expect the underlying to stay range-bound
  • You want a wider profit zone than a short straddle
  • IV is elevated and you think realized vol will come in below
  • You're comfortable managing unlimited-risk positions
💡

The short strangle's edge comes from the vol risk premium. Implied vol systematically exceeds realized vol. But that structural tailwind doesn't protect you from the tails. A single liquidation cascade can erase a year of collected premium in an hour.

Strike Selection​

This matters more than most traders think.

The standard approach: sell the 16-delta call and 16-delta put. That's roughly one standard deviation OTM on each side, giving you about a 68% probability of max profit at expiry.

Wider strikes (10-delta) = higher win rate, less premium per trade. Tighter strikes (25-delta) = lower win rate, more premium per trade.

There's no free lunch. More premium always means more risk. Pick the width that matches your risk tolerance, not your greed.

Greeks at a Glance​

Greek
Sign
Plain English
Delta
~0
Roughly neutral at entry
Gamma
-
Large moves accelerate losses
Theta
+
Time decay earns you money
Vega
-
Rising IV increases the value of options you sold
Common Mistakes
The mistakeSelling strangles in low IV and calling it "income"
The realityLow IV means low premium. You're collecting nickels in front of a steamroller with an even thinner cushion. Sell vol when it's high, not when it's convenient.
The mistakeLetting winners run to expiry
The realityAt 50% of max profit, close the trade. The remaining 50% takes as long to earn as the first 50%, and you're exposed to gamma risk the entire time. Take the money.
The mistakeNo stop loss because "it's a high probability trade"
The realityHigh probability doesn't mean no risk. A 68% win rate still means you lose a third of the time. Without a stop, one loss can wipe out 10 wins. Define your exit before entry.
The mistakeIgnoring the funding cost of delta hedges
The realityIf you're hedging delta with perpetuals, funding rates eat into your premium. A 0.05% funding rate every 8 hours on a delta hedge can cost more than the strangle premium over a month.

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