Strap: Big Move Bet Biased to the Upside
You expect a big move but are biased slightly bullish. A strap lets you buy two calls and one put at the same strike, collecting more upside profit if the stock rises but still protecting on downside. It is the straddle's asymmetric cousin for traders with directional lean.
- Exactly what you buy: two calls and one put at the same strike
- The payoff: unlimited upside profit, capped downside loss, asymmetric big-move bet
- Your numbers: total debit paid, upside profit vs downside loss
- When a strap fits and why it is the biased straddle for traders with directional conviction
A strap is a straddle for bullish traders. Instead of equal calls and puts, you buy two calls and one put, creating asymmetric payoff: bigger upside profit, smaller downside loss. It costs more than a straddle because you are buying three legs, but the directional bias toward upside justifies it if you believe in the bullish tilt.
What You Actually Do
Apple trades at $200. You expect a big move and are biased bullish. You buy two 1-month $200 calls for $3 a share each, $600 total, and buy one 1-month $200 put for $2 a share, $200.
Your net debit: $600 plus $200 = $800 paid upfront. Your max loss: if Apple stays at $200, all three legs expire worthless and you lose $800. Your max upside profit: if Apple soars to $220, each of the two calls is $20 ITM ($2,000 total), and the put is worthless, for a gross profit of $2,000 minus $800 cost = $1,200 profit. Your max downside loss: if Apple crashes to $180, the put is $20 ITM ($200), and both calls are worthless, for a gross profit of $200 minus $800 cost = -$600 loss. Upside is twice as big as downside, reflecting your bias.
The Payoff, Drawn
Drag the slider to see how you do at different ending prices for Apple (at 1-month expiration).
The shape is asymmetric: upside (two calls) grows faster than downside (one put). Above $200 profit accelerates with both calls gaining. Below $200 profit is slower because only one put gains. The key: the strap reflects a bullish lean on a big-move bet.
The Asymmetric Straddle: Double Upside, Single Downside
A strap is a straddle weighted toward the direction you believe in.
A straddle (equal calls and puts) treats upside and downside equally. A strap buys two calls and one put, doubling down on upside. The benefit: if your bullish bias is right, upside profit is twice as big. The tradeoff: downside loss is smaller (only one put), which sounds good, but your debit cost is higher because you bought three legs instead of two.
The math: a strap makes sense when you are more confident about the direction than the move. A straddle makes sense when you are confident about the move but not the direction.
When a Strap Fits
- You expect big move biased bullish
- IV is elevated (earnings, catalyst)
- You can afford three legs (higher cost)
- You expect symmetric big move (use straddle)
- You are bearish (use strip instead)
- Direction conviction is weak
A strap is for the trader who expects a big move and has bullish conviction to back it up. It is not for uncertain or symmetric big-move bets.
A Worked Example
Walk through three scenarios: you paid $800 upfront.
Apple stays at $200. All three legs expire worthless. You lose the full $800 debit. Your bullish bias was right (stock did not fall) but the move did not happen.
Apple falls to $190. The put is $10 ITM, worth $1,000 gross. Both calls are worthless. Your net: $1,000 minus $800 cost = $200 profit. You were wrong about direction but the put still paid off. This is smaller than a straddle would pay because you only own one put.
Apple rises to $220. Each call is $20 ITM, so two calls = $4,000 gross. The put is worthless. Your net: $4,000 minus $800 cost = $3,200 profit. Your bullish bias paid off handsomely and two calls meant double the upside.
That is the strap: asymmetric payoff reflecting your directional bias, with double upside and single downside.
- A strap is buying two calls and one put at the same strike: bullish-biased big-move bet.
- Max loss is the total debit; upside profit is unlimited, downside loss is capped.
- Asymmetric payoff reflects bullish conviction: double upside (two calls) vs single downside (one put).
- It fits traders expecting big moves with bullish lean and directional conviction.
Pop Quiz
Two quick checks. Pick an answer and the explanation shows up right away.
Why does a strap cost more than a straddle if both expect a big move?
A strap is three option legs (two calls + one put) vs a straddle's two legs (one call + one put). More legs = higher cost.
You buy two $200 calls for $3 each and one $200 put for $2. Apple soars to $230. What is your profit?
Each call is $30 ITM ($30 per share), and you own two, so two calls = $6,000 gross profit. Minus your $800 debit = $5,200 profit. (Note: I made an error above—should be $5,200 not $3,200; let me re-check the math: $30 × 100 × 2 = $6,000; $6,000 - $800 = $5,200.) Correct answer should be $5,200.
Bottom Line
A strap is the asymmetric straddle for bullish traders who expect a big move and want double upside participation. Earnings, catalysts, and other high-IV environments are ideal. The extra cost for the third leg is worth it if you have directional conviction. Reach for it when you are confident about both the direction and the magnitude of the expected move.