Short Straddle
Sell an ATM Call and an ATM Put at the exact same strike to collect maximum premium, betting the market will stay tightly pinned.
Interactive Payoff Curve & Greeks Simulation
Visualize the theoretical profit & loss at expiry vs T+0 immediate day curves. Drag the simulation slider to stress-test your trade.
Option Payoff Curve & Greeks
Net Option Greeks (Sensitivity Profile)
Values per 1 Lot standard unitMulti-Leg Position Structure (2 Legs)
| Action | Instrument / Strike | Type | Expiry | Approx Delta | Est. Premium | Qty Ratio |
|---|---|---|---|---|---|---|
| SELL | 24,500 CE (ATM) | CALL | Weekly Expiry | +0.50 | ₹180 | 1x |
| SELL | 24,500 PE (ATM) | PUT | Weekly Expiry | -0.50 | ₹175 | 1x |
How the Structure Works
Captures pure theta decay (+θ) and volatility crush (-ν). Extreme gamma risk on trending breakout days.
The Short Straddle is the most popular strategy among Indian full-time algorithmic options traders. By selling both the ATM Call and ATM Put, you collect the maximum possible premium (e.g. ₹355 points in Nifty = ₹8,875 per lot). You generate massive daily theta decay as long as the market stays between your wide breakevens (24,145 to 24,855).
Institutional Strike Selection Rules
Phased Execution Blueprint
Follow this structured sequence to eliminate emotional hesitation during order entry, lifecycle management, and final exit.
Identify Low-Trending Days
Check CPR (Central Pivot Range) is wide and ADX < 18.
The 25-30% SL Rule
Set an automatic 25% or 30% stop loss on EACH leg independently.
Interactive Margin & Position Size Calculator
Calculate exact lot sizing based on the 1-2% risk rule to preserve capital against Black Swan events.
Options Position Size & Max Risk Calculator
Total net liquid equity in your brokerage account
Recommended: 1.0% - 2.0% for disciplined longevity
Wing width max loss or defined mental/system SL
Rigorous Risk Rules & Adjustment Protocols
Non-negotiable parameters for stop-loss triggers, portfolio caps, and firefighting adjustments when market tests your strikes.
- Shift Straddle: If market moves 150 points, close tested straddle and sell a new ATM straddle.
- Hedge Wings: Buy deep OTM options to reduce margin and cap black swan risk.
Maintain at least ₹1.8L margin buffer per lot in Nifty.
NIFTY 24500 Short Straddle Trade Walkthrough
Nifty traded in a 120-pt range on expiry day.
Sold 24500 CE @ ₹180 / Sold 24500 PE @ ₹175 (Total Credit = ₹355 = ₹8,875)
- Range-bound market melted both options to ₹35.
Common Mistakes to Avoid
Why it happens: A 300-point trending day wipes out 3 weeks of profits.
Solution: Always use automated broker GTT/API stop-loss orders.
Institutional Pro Tips
Short Straddle FAQs
What is the 9:20 AM Straddle strategy in India?
At 09:20 AM, an algorithm sells the ATM Call and ATM Put and places a 25% stop-loss on each leg, capturing intraday theta decay.
Alternative & Complementary Strategies
Sell an OTM Call and an OTM Put at different strikes to collect premium with wider breakeven buffers than a straddle.
Sell an ATM Straddle and buy OTM protective wings (Call & Put) to create a defined-risk, high-credit neutral strategy.
Sell an OTM Call Spread and an OTM Put Spread simultaneously to collect double premium in a range-bound market with strictly defined risk.