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gateway/knowledge/trading/strategies/options/bull-put-spread.md

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+---
+description: "A bullish vertical spread selling a higher-strike OTM put at K2 and buying a lower-strike OTM put at K1 for a net credit, profiting if the stock stays above K2."
+tags: [options, income, bullish, vertical-spread]
+---
+
+# Bull Put Spread
+
+**Section**: 2.7 | **Asset Class**: Options | **Type**: Income
+
+## Overview
+The bull put spread is a vertical spread consisting of a long position in an OTM put option with strike K1, and a short position in another OTM put option with a higher strike K2 (K2 > K1). This is a net credit trade. The trader's outlook is bullish. This is an income strategy.
+
+## Construction
+- Buy 1 put option at strike K1 (lower OTM), same expiry
+- Sell 1 put option at strike K2 (higher OTM, K2 > K1)
+
+Net credit: C = premium received for K2 put - premium paid for K1 put
+
+## Payoff Profile
+f_T = (K1 - S_T)+ - (K2 - S_T)+ + C
+
+- Breakeven: S* = K2 - C
+- Max profit: P_max = C  (if S_T >= K2 at expiry; both puts expire worthless)
+- Max loss: L_max = K2 - K1 - C  (if S_T <= K1 at expiry)
+
+## Key Conditions / Signals
+- Bullish to neutral outlook; expects stock to remain above K2 by expiry
+- Prefer when implied volatility is elevated (larger credit received)
+- Income generation with defined downside risk
+
+## Notes
+The bull put spread is a credit spread. Maximum profit is limited to the net credit received. Maximum loss is the spread width minus the credit. The long put at K1 provides downside protection relative to a naked short put.