Short Call and Short Put

Introduction

The last two basic strategies are selling options: the short call and the short put. Option sellers collect premium and profit from time decay, but they take on much larger risk. This lesson explains how they work and why beginners must be very careful.

Short Call

You sell a call when you believe the price will not rise above the strike before expiry.

• Maximum profit: premium received.
• Breakeven: strike + premium.
• Maximum loss: unlimited in theory, because the price can keep rising.

Example (Illustrative)

Nifty is at 24,000 with strong resistance at 24,300. You sell the 24,400 call at Rs 60. Lot size 65. Premium received = Rs 3,900.

• If Nifty stays below 24,400 till expiry, you keep Rs 3,900.
• If Nifty rises to 24,700, the call is worth 300. Loss = (300 - 60) x 65 = Rs 15,600.

Short Put

You sell a put when you believe the price will not fall below the strike before expiry.

• Maximum profit: premium received.
• Breakeven: strike - premium.
• Maximum loss: large, if the price falls sharply.

Example (Illustrative)

Nifty is at 24,000 with strong support at 23,700. You sell the 23,600 put at Rs 55. Premium received = Rs 3,575.

• If Nifty stays above 23,600, you keep Rs 3,575.
• If Nifty crashes to 23,200, the put is worth 400. Loss = (400 - 55) x 65 = Rs 22,425.

Margin for Option Selling

Because sellers take large risk, the exchange requires them to keep a significant margin, often much more than the premium received, and it can increase when markets become volatile. Buyers only pay the premium.

Why Beginners Should Be Careful

• Many small wins can be wiped out by one big loss.
• Gap openings after news can cause losses far beyond your planned stop-loss.
• Margin needs can rise suddenly.

Safer Ways to Sell Options (Later Stage)

• Covered call: sell a call against shares you already own.
• Spreads: sell one option and buy another further away to cap the maximum loss.

These are intermediate strategies. Learn them only after you are comfortable with buying options.

The Four Strategies at a Glance

Continue Your Journey with GoPocket

You now know the basics of options: calls, puts, buyers and sellers, strikes, premium, expiry, Greeks and the four basic strategies. Open the F&O segment on the GoPocket app, start with small long call or long put trades with strict stop-losses, and build your experience step by step.

Key Takeaways

• Option sellers earn the premium but face large risk.
• Selling needs high margin and strict discipline.
• Beginners should master buying before selling.

Disclaimer: Illustrative examples. Lot size as per NSE at the time of writing. Option selling can result in losses much larger than the premium received. Investments in the securities market are subject to market risks. Read all related documents carefully before investing.