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What is Credit Spread Strategies
The credit spread strategy is an option strategy that involves buying and selling of options having the same underlying security and expiration but different strike. The spread is deployed in such a manner that there is a net inflow of option premium, thus leading to naming such strategies as “Credit Spreads”. Such strategies are simple to execute and tend to be highly popular with traders and investors, alike.
The net inflow of premium or “credit” happens at the initiation of the option strategy. This is done by selling At-the-money option strike, which possesses the highest time value and is expensive and buying Out-of-The-Money option strike which is cheaper. The credit spreads are further bifurcated into Credit Call spread and Credit Put spread.
Here the Call or Put refer to the instrument type being used to create spread. Generally, the value of call option increases with the increase in market levels and value of put increases with decline in market levels. However, with vertical spreads it is possible to generate profit with either call or put options in both rising and declining markets.
Credit Call Spread
Nifty50 Index is currently trading at 17,580. A credit call spread is initiated by selling At-the-Money call option at strike 17,600 for ₹ 106 and buying Out-of-the-Money call option at strike of 17,800 for ₹ 40 of Nifty50 Index of the same expiry.
|Credit call Spread||Nifty50||Sell Call||17,600 (strike 1)||106|
|Buy Call||17,800 (strike 2)||-40|
This results in net inflow of premium amounting to ₹66. The short At-the-Money call is more expensive than the long Out-of-the-Money call.
Breakeven Spread = Strike 1 + net premium
= 17,600 + 66
Max Loss = (strike 2 – strike 1 – net premium) * lot size
= (17,800 – 17,600 – 66) * 50
= 134 * 50
Max Profit = Net premium received * lot size
= 66 * 50
|Nifty50 @ Expiry||Net Payoff (₹)|
Scenario 1 – Nifty50 expires at 17,400
The long call at 17,800 expires worthless leading to forfeiture of premium paid. The short call too expires worthless and without any intrinsic value but due to short trade the option is able to preserve its time value and we end up with retaining the credit equivalent to the premium received of ₹3,300.
Scenario 2 – Nifty50 expires at 17,650
The short call of 17,600 strike price retains 50 rupees as the intrinsic value while the long call options of 17,800 strike price expires worthless. As 17,650 is below the breakeven point of 17,666, the spread is able to retain a marginal portion of premium received i.e. ₹800 (17,666 – 17,650 = 16)
Scenario 3 – Nifty50 expires at 17,800
The short call position at 17,600 starts to bleed the spread, but the long call position at 17,800 provides cover against the potential unlimited loss. The loss is limited to the extent of difference between the two strikes minus net premium multiplied by the lot size which is ₹6,700 ((17,800 – 17,600 – 66 = 134) * 50).
Credit Put Spread
Nifty50 is currently trading at 17,775. The credit put spread can be initiated by selling At-the-Money put option of strike 17,800 at ₹ 110 and buying Out-of-the-Money strike of 17,600 at ₹ 40
|Credit Put Spread||Nifty50||Buy Put||17,600 (strike 1)||-40|
|Sell Put||17,800 (strike 2)||110|
Here the spread generates a credit of ₹ 70.
Breakeven point = strike 2 – net premium received
= 17,800 – 70
Max profit = Net premium received * lot size
= 70 * 50
= ₹ 3,500
Max Loss = (strike 2 – strike 1 – 70) * lot size
= (17,800 – 17,600 – 70) * 50
= 130 * 50
= ₹ 6,500
|Nifty50 @ Expiry||Net Payoff (₹)|
Scenario 1 – Nifty50 expires at 17,450
The short put option position at 17,800 begins an incremental loss, leading to loss of upfront premium collected. The long-put option position at 17,600 helps in covering the incremental losses arising from short position. Since this is a risk defined strategy. The losses are limited to the difference between the two strikes minus net premium multiplied by the lot size Loss = (strike 2 – strike 1 – Net premium) * lot size = (17,800 – 17,600 – 70) * 50 = ₹6,500.
Therefore, when Nifty50 expires at 17,450, a loss of ₹6,500 will be incurred.
Scenario 2 – Nifty50 expires at 17,750
The short put option of strike price 17,800 will retain ₹50 as intrinsic value while the long put option of strike price 17,600 will expire worthless. As 17,750 is slightly above the breakeven point of 17,730, the spread is able to retain a marginal portion of premium received i.e. ₹1,000 ((17,750 – 17,730 = 20)*50)
Profit = (Nifty50 at expiry - Break even point)* lot size = (17,750 – 17,730)*50 = ₹1,000
Therefore, when Nifty50 expires at 17,750, a profit of ₹1,000 will be incurred.
Scenario 3 – Nifty50 expires at 17,950
Both the options expire worthless and the trade is able to profit from this strategy. The profit is equivalent to net premium received and the same is the maximum potential profit of ₹ 3,500.
Profit = Net premium received * lot size = 70 * 50 = ₹ 3,500
Therefore, when Nifty50 expires at 17,950, a profit of ₹3,500 will be incurred.
- Since the strategy is hedged, the quantum of profit and losses are pre-defined and limited.
- The strategy revolves around collecting or retaining the net credit or premium received, which leads to a positive impact of time decay on the strategy.
- The credit call spread is deployed when the outlook is bearish and traders expect significant decrease in volatility. The credit put spread on the other hand is deployed when the outlook is bullish and accompanied with contraction in volatility.