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What is shorting/writing/selling in Options trading?
Updated 4 November 2025
Language: EN
Most traders buy call and put options. They buy call options when they expect the market to rise and they buy put options when they expect the market to fall. However, there is another interesting trade that is risky and only practiced by a few traders. It is the so-called shorting, the writing or selling of options.
Writing an option refers to the sale of an option contract in which the writer receives a fee or premium in exchange for the right to buy or sell shares at a future price and date.
When writing/shorting/selling options, you sell a call or put an option in the hope that the price of the security will fall and you will make a profit. Since the majority of options traders buy options and a significant portion of these trades expire worthless, the likelihood of losses or smaller gains is greater. So if the majority of traders lose, who wins? It is the traders on the other side, i.e. the sellers.
The time value also works in favor of the sellers and against the buyers. Every day that passes without the market moving or falling, the market wins. We all know that premium = intrinsic value + time value. So if the intrinsic value does not move, the seller is at an advantage because with each day that passes, the price of the premium falls.
An option buyer has a limited loss and unlimited risk potential, while a seller has an unlimited loss or greater gain. Let us illustrate this with an example;
Nifty 50 Spot Price
6694
Nifty 50 Short Call Strike Price
6600
Lot Size
75
Premium Received Per Share
Rs 154
Break Even Point (Strike Price + Premium)
6754
Max Profit
Rs 154 X 75= Rs 11.550
Max Loss
Unlimited
Let us now look at how the payouts vary depending on the closing price of the Nifty 50 on the expiration date.
NIFTY 50 Closing Price (CP)
Net Payoff (BEP-CP)*75, Max Profit= 4500
6400
11550
6500
11550
6600
11550
6700
4050
6754
0
6800
-3450
6900
-10950
The table above shows that although you make a higher profit when selling options, you also run a higher risk if the market moves against your trade.
Margin payments are much higher when selling options short than when buying options. Also, the margin is marked to market, which means you have to hold margin each day depending on your loss.