You can usually feel the value of a hedge after the first big market correction you experience without one. The portfolio drops 15% in a few weeks. The position sizes you'd been comfortable with feel suddenly larger. You watch the broader market and realise that even your fundamentally strong holdings move with the index in a sell-off. The conviction that picked the stocks doesn't matter much when liquidity dries up and everything goes down together.
Hedging doesn't eliminate the loss; it offsets it partially with a position that benefits from the same market move that's hurting your portfolio. Done properly, hedging reduces drawdown without requiring you to sell positions you wanted to hold for the long term. Done improperly, hedging adds cost without much benefit, or worse, locks you into structures that create new problems.
Index futures on Nifty and Bank Nifty are the standard hedging tools available to Indian retail investors. Understanding how to size them, when to use them, and where they go wrong is the foundation of using hedges as a real risk management tool rather than a fancy-sounding addition to the portfolio.
What index futures hedging actually does
The basic mechanic of hedging an equity portfolio with index futures is straightforward. Your equity portfolio benefits when the market goes up and loses when the market goes down. By selling (going short) index futures, you create a position that does the opposite. If the market falls, the equity portfolio loses value but the short futures position gains. The two partially offset each other.
The offset isn't perfect for several reasons:
- Your portfolio rarely has exactly the same composition as the index
- Stock-specific moves can diverge from the index in either direction
- The hedge ratio (size of futures position relative to portfolio) determines how much offset you get
- Hedging costs (financing, brokerage, basis risk) reduce the net protection
- Tax treatment of the hedging gain/loss differs from the underlying portfolio
The goal of hedging isn't to eliminate risk; it's to reduce it to a manageable level for the period you expect risk to be elevated. A perfect hedge defeats the purpose of having an equity portfolio in the first place; a partial hedge that reduces drawdown by, say, 30-50% during a correction is what serious investors actually want.
How to size the hedge
The hedge ratio is the key parameter. A portfolio worth ₹50 lakhs being hedged with one Nifty futures contract (notional roughly ₹15 lakhs) is hedging only a fraction of the exposure. Two contracts (₹30 lakhs notional) covers more. Three contracts (₹45 lakhs) approximates a full hedge.
The right ratio depends on:
- How correlated your portfolio is with the index. A portfolio of large-cap Nifty constituents is more correlated than one of mid-caps or sector-specific stocks
- How much downside protection you actually want. A 50% hedge cuts expected drawdown roughly in half
- How long you plan to hold the hedge. Shorter horizons can use heavier hedges; longer horizons can't because the cost compounds
- Your view on whether the move will be a brief correction or a sustained decline
For most retail investors holding diversified large-cap heavy portfolios, hedge ratios in the 40-70% range are common when hedging is appropriate. Going to 100% removes equity exposure entirely, which usually means you should just sell the equity instead of hedging.
A reliable index futures trading India platform makes the sizing math straightforward, with current notional values and margin requirements visible at the moment of placing the trade.
When hedging makes sense
Hedging isn't a default; it's a tool used in specific situations. The cases where it adds genuine value:
- Approaching an event with binary outcome. Major elections, central bank decisions, or geopolitical events where the market reaction could be sharp in either direction
- Significant drawdown already in progress and you don't want to liquidate. When you've identified the start of a correction but want to hold core positions, a hedge bridges the gap
- High-conviction concentration in a portfolio that's already gained significantly. Locking in gains via hedging while staying invested
- Liquidity needs in the near term. When you need access to portfolio value but don't want to sell at current prices, a hedge can stabilise the value while you find better liquidity sources
Where hedging often goes wrong is when investors hedge based on general anxiety rather than specific signals. Continuous hedging through normal market conditions creates ongoing cost without proportionate benefit. The right approach is to hedge selectively when the risk-reward of having protection is clearly favourable.
What the hedge actually costs
Hedging isn't free. Costs include brokerage on the futures position, margin tied up that could otherwise be invested, basis risk between futures and spot index, tax inefficiency between futures and equity, and roll costs when contracts approach expiry.
For a hedge held over a quarter against a defined event, costs are manageable. For a hedge held continuously over years, costs compound into drag that often exceeds the benefit.
A derivatives trading account India capable of clean futures execution helps minimise the cost layer, though basis risk and tax inefficiency are structural.
What goes wrong in practice
Three patterns recur. First, hedges are sized incorrectly because portfolio correlation with the index isn't what the investor assumed. A mid-cap portfolio hedged with Nifty futures gets only partial protection because mid-caps often fall harder than the index.
Second, the hedge gets removed at the wrong time. The investor puts the hedge on as the market falls, takes it off after a small recovery, then watches the market resume falling.
Third, the investor over-hedges and converts an equity portfolio into something approximating market-neutral. The drawdown is small, but so is the upside when the market recovers.
What good hedging looks like
Investors who use hedges well treat them as event-specific tools rather than continuous overlays. They size hedges based on actual portfolio correlation. They have rules for putting hedges on and taking them off rather than reacting to news cycles. The result is a portfolio more resilient to drawdowns without the continuous cost drag of always being hedged.