Sell more options than you buy. Asymmetric bet — big profit zone at a specific target, but exposed to unlimited loss past break-even. Deep dive: ratio call and put variants, adjustment recipes, when they work and when they blow up.
A 1×2 ratio call spread (bullish, targeted):
Same expiry. Mirror for puts (bearish).
The “ratio” is the imbalance between long and short legs. Common ratios: 1×2, 1×3, 2×3.
Net cost: small debit or net credit depending on strike distance and IV.
Small loss going down. Rising profit up to the short strike (peak). Then falling profit, break-even, and unbounded loss past the upper break-even — that’s the extra naked call.
Nifty at ₹25,000. Monthly expiry 21 days. Mildly bullish; expect Nifty to top out around 25,300.
Net debit: ₹1,300 (very small)
Max profit at expiry with Nifty at 25,300 (perfect):
Break-evens:
Peak ₹18,200 at 25,300. Break-even at 25,600 — past that, unbounded loss from the naked short call. This is the “beauty and danger” of ratio spreads made visual.
The graph looks like a shark’s fin:
Net cost = Long premium − 2 × Short premium (per share) Can be debit or credit depending on strikes and IV
Max profit at expiry = (Short − Long strike) − Net cost per share (occurs at short strike)
Upper break-even = Short strike + (Short − Long strike) − Net cost per share
Max loss = Unlimited above upper break-even
1×2 ratio = long 1 call + short 1 naked call. The extra short call has unlimited risk.
Only trade with a clear stop-loss plan.
Same structure with puts:
Bet: underlying falls to and stalls at lower strike. Loss if it crashes further.
Unlike vertical spreads (where max loss is capped), ratio spreads have unbounded downside. Rank by:
Peak profit ÷ Distance to upper break-even = “Profit density”
If peak profit is ₹18,200 and upper BE is 25,600 (600 pts above spot): Profit density = 18,200 ÷ (600 × 65) = 47% return per rupee of “safe range”
Higher density = better setup.
Nifty at 25,000, 21 DTE:
| Setup | Long / Short | Cost | Peak | Upper BE | Density |
|---|---|---|---|---|---|
| Aggressive | 25,000 / 25,200 | Credit ₹450 | ₹15,000 | 25,400 | Very high |
| Balanced | 25,000 / 25,300 | Debit ₹1,500 | ₹21,000 | 25,600 | High |
| Conservative | 25,000 / 25,500 | Debit ₹4,000 | ₹34,000 | 26,000 | Moderate |
Balanced (25,000 / 25,300) typically wins on retail scorecards — wide safe range, good peak profit, small debit.
Sell 3 × 25,300 instead of 2:
Not recommended for retail — the extra unbounded short exposes you to bigger disasters.
In special cases:
Increases risk — only if you’re confident about mean reversion.
If you just want directional exposure without unlimited risk, use a bull call spread (Chapter 10). You give up peak-payoff shape but eliminate tail risk. Better risk-adjusted for most.
Ratio spreads are for traders who genuinely have edge on identifying tops/bottoms — a small minority. Everyone else is better off with vertical spreads.
Ratio spreads are HARD to size:
Max lots = Account × 2% ÷ Expected worst-case loss (or use hard stop-loss plan)
For most retail: 1 lot maximum for ratio spreads, or skip entirely.