Risk-Reward Ratio
The single number that tells you whether a trade is worth taking before you place it.
Definition
The risk-reward ratio (RRR) expresses how much capital you stand to lose versus how much you stand to gain on a single trade. It is almost always written as risk:reward — so a ratio of 1:2 means you risk ₹1 to potentially earn ₹2. In options, max loss and max profit are usually knowable in advance for defined-risk strategies such as a bull call spread or bear put spread, making RRR easy to calculate before entry.
Why it matters
RRR is the foundation of sustainable F&O trading. Even a strategy with a 50% win rate destroys capital if the average loss is three times the average gain. Conversely, a trader who wins only 35% of the time can still be consistently profitable if each winner is three times larger than each loser. In Indian markets, where STT on option exercise, brokerage, and SEBI fees all erode net receipts, the effective reward must be calculated net of these costs — not gross. Weekly expiries on NSE (Nifty, BankNifty, FinNifty, MidcpNifty) let traders take more frequent trades, which amplifies the compounding effect of a disciplined RRR filter. Ignoring the ratio and chasing high-probability short-premium trades without accounting for tail risk is the most common cause of blow-ups among Indian retail option sellers.
Formula
Risk = Max loss per trade (premium paid for buyers; margin blocked − credit received for sellers)
Reward = Max profit per trade
RRR = Risk ÷ Reward
Minimum win rate needed to break even = Risk ÷ (Risk + Reward)
For undefined-risk trades (naked short options), max loss is theoretically unlimited; use a stop-loss level as the practical risk figure to keep the ratio meaningful.
Example
Suppose you buy a Nifty 24,000 call for ₹120 per unit. Nifty lot size is 25, so the premium outflow is ₹3,000. You plan to exit if the premium doubles to ₹240, targeting a profit of ₹3,000, or exit at a loss if it falls to ₹60 — a loss of ₹1,500. Your risk is ₹1,500 and your reward is ₹3,000, giving a ratio of 1:2. That means you can be wrong more than half the time on this type of trade and still break even — a comfortable buffer. Now compare a naked short put where the credit is ₹80 (₹2,000 per lot) but a move against you could realistically cause ₹6,000 of loss before you stop out. That is a 3:1 risk-reward ratio — you need to win three trades to recover one loss, which demands very high precision.
Evaluate your next trade
Use the TradePulse live option chain to read real premiums and calculate your actual risk-reward before entry.