The Sell Put And Buy Call Strategy | A Synthetic Long Stock (2024)

In this case, what is being mimicked is a long position on a stock by selling a put and buying a call at the samestrike priceand expiry (usually at the money). Here’s how it works in more detail:

Long Stock

A Long Stock, purchased at $50 has the following payoff diagram:

The Sell Put And Buy Call Strategy | A Synthetic Long Stock (1)

As you would expect if the stock rises above $50 the ‘position’ is profitable and gets more profitable as the stock rises further. And the converse is true too: below $50 the stock is unprofitable and gets worse as the stock price falls.

How To Place A Synthetic Long Stock

In order to place a synthetic stock, it’s important to remember one of the key principles of options trading: if the pay-off diagrams of two positions are the same then they are, in effect, the same trade.

Therefore all we need to do is construct anoptions spreadthat has the same pay-off (or ‘P&L’) diagram as the above and we have ‘synthetically’ created a long call.

And the spread that does the job is to buy an at the money call and sell an at the money put. Both should have the same expiry date.

The long call has the following P&L diagram:

The Sell Put And Buy Call Strategy | A Synthetic Long Stock (2)

And here’s the short put’s pay-off:

The Sell Put And Buy Call Strategy | A Synthetic Long Stock (3)

And when put together they produce:

The Sell Put And Buy Call Strategy | A Synthetic Long Stock (4)

Which is, of course, the same pay-off diagram as the Long Stock above, and therefore the same trade.

Advantages Of The ‘Sell Put And Buy Call’ Strategy

Why would you go to the bother of putting on the synthetic version of a bought stock when you could quite easily just buy the stock? Here are a couple of reasons:

Lower Capital Outlay

To own stock you require the capital to purchase the shares. Even if you’re buying stock on margin you still need to deposit 50% of the purchase price with your broker.

The margin requirements for the ‘sell put and buy call’ strategy is much smaller and therefore less cash is required.

Flexibility

Because options are involved a sophisticated trader has more, well, options to manage the trade.

For example if the stock price drops, therefore increasing the price of the short put, it could be rolled down (ie sold at a lower price point) or out (buying back the put and selling a put of a later expiry date).

Downsides To The ‘Sell Put And Buy Call’ Strategy

With all options trades there is a downside to consider to placing the synthetic version of the long call. Here are a few:

Dynamic Margin

The required margin is lower than a purchased stock as we’ve seen. However, because the trade includes an uncovered sold put, your broker will recalculate your margin requirements daily. If the stock has moved down significantly you’ll be asked to post more margin immediately.

Increased Leverage

For a smaller amount of capital you’re being exposed to the full risk profile of the stock. Therefore, when compared to the capital outlay you have more risk.

This is the flip side of being able to put the trade on for less capital: you’ve effectively leveraged yourself to the stock price. You could get more return (on your capital requirement) but for a greater risk.

Conclusion

The ‘Sell Put And Buy Call’ strategy, the sell of an ATM put coupled with the purchase on an ATM call, is a way of creating a synthetic long stock position. It requires a lower capital outlay than simply purchasing the stock, but also exposes you to the same risk.

About the Author:Chris Young has a mathematics degree and 18 years finance experience. Chris is British by background but has worked in the US and lately in Australia. His interest in options was first aroused by the ‘Trading Options’ section of the Financial Times (of London). He decided to bring this knowledge to a wider audience and founded Epsilon Options in 2012.

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The Sell Put And Buy Call Strategy | A Synthetic Long Stock (2024)

FAQs

The Sell Put And Buy Call Strategy | A Synthetic Long Stock? ›

The 'Sell Put And Buy Call' strategy, the sell of an ATM put coupled with the purchase on an ATM call, is a way of creating a synthetic long stock position. It requires a lower capital outlay than simply purchasing the stock, but also exposes you to the same risk.

What is a synthetic long put strategy? ›

Putting on a synthetic long position means buying at-the-money call options and selling put options at the same strike price and expiration. This strategy has a bullish outlook because the maximum profit is unlimited, while downside risk increases until the asset price goes to zero.

What is the difference between synthetic long stock and long call? ›

A Synthetic Call option strategy is when a trader is Bullish on long term holdings but is also concerned with the associated downside risk. When you're expecting a rise in the price of the underlying and increase in volatility. A long call strategy involves buying a call option only.

What is an example of a synthetic long call? ›

Example. If XYZ is trading $100 and is expected to trade higher over the next three months, a trader could buy a 100-strike price call and sell a 100-strike price put for the following price: Buy 1 XYZ 100-strike price call for $4.00. Sell 1 XYZ 100-strike price put for $$3.50.

What are synthetic stock strategies? ›

They are strategies that replicate the profit and loss profile of another strategy, but created in a different way. Typically, the strategy being replicated will involve multiple options positions and the synthetic strategy will use a combination of stocks and options.

What is a synthetic long stock covered call? ›

A synthetical covered call is made up of a short ATM put plus a long ATM call to replicate the synthetic long stock. Combining a short OTM call replicates the covered call position.

Why use a synthetic long? ›

Synthetic long assets come with an unlimited amount of risk; however, they also offer an unlimited potential profit. The synthetic long asset position is a more cost-effective way to trade without tying up all the investment capital required to buy an equivalent number of shares of the underlying stock outright.

What are the losses in a synthetic long call? ›

The maximum loss is limited but potentially substantial. The worst that can happen is for the stock to become worthless. In that case, the investor would be assigned on the put and would have to buy the stock at the strike price. The loss would be higher (lower) by the amount of the debit (credit).

Can you sell a call and buy a put on the same stock? ›

A covered straddle position is created by buying (or owning) stock and selling both an at-the-money call and an at-the-money put. The call and put have the same strike price and same expiration date. The position profits if the underlying stock trades above the break-even point, but profit potential is limited.

What is the best strategy to buy puts? ›

  • Buy a Put only when you are extremely bearish on the stock, index, or market in general.
  • Buy a Put if you are looking to protect shares of stock you have purchased (Protective Put Strategy).
  • Select a candidate whose underlying stock is in a downtrend or has a recent SELL signal.

When should you sell a long put option? ›

Selling a put option is a bullish position, as you are betting against the movement of the stock price below your strike price– so, you'd sell a put if you think that the underlying's price will rise. If the underlying's price does, indeed, increase and the short option expires OTM, you'd make a profit.

How do you get max profit on a put option? ›

Maximum profit

The maximum potential profit is equal to the strike price of the put minus the price of the put, because the price of the underlying can fall to zero.

Which strategy is best for option selling? ›

A Bull Call Spread is made by purchasing one call option and concurrently selling another call option with a lower cost and a higher strike price, both of which have the same expiration date. Furthermore, this is considered the best option selling strategy.

Is synthetic trading profitable? ›

Ans. A synthetic call or put acts like a regular call or put option, offering the chance for unlimited profit and limited loss, but without needing to choose a specific strike price. Also, synthetic positions help control the risk that comes with cash or futures trading, which can be unlimited if not managed properly.

What are the cons of a long call? ›

Cons: Limited lifespan: Calls have a limited lifespan and will expire worthless if the underlying asset's price does not rise above the strike price before the expiration date. Time decay: The value of a call decreases as the expiration date approaches, even if the underlying asset's price remains stable or increases.

What is an example of a long put strategy? ›

To break even on the trade at expiration, the stock price must be below the strike price by the cost of the long put option. For example, if a long put option with a $100 strike price is purchased for $5.00, the maximum loss is defined at $500, and the profit potential is unlimited until the stock reaches $0.

What is an example of a long put option strategy? ›

As stated earlier, a trader would buy long puts in anticipation of the price of the underlying stock falling in value. For example, let's assume stock ABC has price of $20 and you think the stock price is going to go down in the next few weeks. You could consider buying a $15 ABC put to profit from this expectation.

What is an example of a synthetic option? ›

If the stock prices increase, David will make unlimited profits as his stock price rises. However, he will lose the premium paid to buy the put option. This is an example of synthetic options.

What is an example of a synthetic short put? ›

Consider a stock trading at $81.37. We can create a synthetic short put position with the following trades: Buy 100 shares of the underlying stock for $81.37. Sell one contract of the 80-strike call option for $5.03.

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