Portfolio Hedging Strategies: What Each One Costs

A hedge is not a strategy. It is an insurance policy with a premium you pay continuously, in exchange for a smaller loss in one specific scenario. Framed that way the interesting question is not which hedge but what each one costs and whether the protection is worth the price — and for most portfolios the honest answer is that a cheaper alternative was available all along.

The evidence is uncomfortable. Over 1986 to 2022, a portfolio holding 65% in the S&P 500 and 35% in Treasury bills beat a continuously put-protected S&P 500 position by about 0.6% a year, with lower risk and a Sharpe ratio 22% higher. Simply owning less of the risky thing outperformed paying to protect all of it.

What each hedge costs

Every instrument below reduces a specific exposure. None is free, and the price is rarely quoted as a fee — it arrives as premium, as drag, or as forgone return.

Instrument	What it protects against	Where the cost shows up	Rough size of the cost
Protective puts	A fall below the strike, on a defined date	Premium, paid again at every roll	Cboe’s PPUT index — the S&P 500 plus rolling 5% out-of-the-money monthly puts — compounded at 6.64% a year since June 1986
Collar (put financed by a sold call)	The same fall, at a lower cash cost	Upside above the call strike	Free in cash terms, expensive in a strong year — you sold the recovery
Inverse ETFs	A fall over a single day	Daily reset, plus fees above a plain index fund	Roughly σ² a year when the index ends flat: 2.5% at 16% volatility, 6% at 25% (calculated below)
Short index futures	Market-wide falls, with little tracking error	Financing embedded in the price, margin, roll spread	Approximately the risk-free rate net of the index dividend yield
Currency hedge (forwards, hedged share class)	Exchange-rate moves on foreign assets	The interest-rate differential between the two currencies	Whatever that gap is — can be positive, and reverses when the gap does
Government bonds	Growth shocks and deflation	Lower expected return than equities	The equity risk premium you gave up. Does not hedge inflation shocks — see 2022
Cash	Everything, partially	Inflation, and forgone return	The simplest hedge, and on the historical record the hardest to beat

The practical consequence: the last row is the punchline of the whole table. Holding cash instead of a slice of equities removes exposure at a cost you can calculate in advance, with no counterparty, no roll date and no basis risk. Every other row buys something more precise and charges for the precision.

Protective puts: what the long record shows

Buying puts against a position you own is the most intuitive hedge — a floor under the price, for a fee. It is also the one with the longest published track record, and the record is sobering.

Cboe maintains an index, PPUT, that does exactly this mechanically: hold the S&P 500, buy a 5% out-of-the-money put every month, roll it at expiry. Since June 1986 it has compounded at 6.64% a year with a standard deviation of 12.08%. The protection is real — volatility is meaningfully lower than the index — but so is the bill.

The comparison that matters is not against the unhedged index, which is an unfair fight on risk. It is against the simplest alternative: hold less equity. Victor Haghani and James White ran that test and found a static 65/35 mix of S&P 500 and Treasury bills returned 0.6% a year more than PPUT, with lower risk and a 22% higher Sharpe ratio, over the same 1986-onward period. The put buyer paid a premium every month for an outcome a rebalanced two-asset portfolio delivered for nothing.

Their shorter-horizon figure is just as instructive. In the twelve months to October 2022 — a genuine bear market, precisely the scenario puts exist for — rolling one-month puts on the S&P 500 added about 2% of loss on top of the index’s own 15% decline. The hedge fired and still lost money, because the premiums paid on the way down exceeded what the surviving option returned.

The practical consequence: protective puts work as a defined-period, defined-event hedge — the quarter you cannot afford a drawdown because a specific liability falls due. Run continuously, they are a slow transfer of return from you to whoever sold you the options.

Inverse ETFs: the daily reset is the whole story

An inverse ETF looks like the obvious retail hedge: buy it, and it goes up when the index goes down. The catch sits in the prospectus. Almost all of them target the inverse of a single day’s return, and rebalance to that target every evening.

Over one day, they do what they say. Over longer periods, the daily rebalancing compounds against you whenever the market moves in both directions — which is to say, always. To size the effect I simulated 60,000 one-year paths for a −1× daily-reset fund and kept only the paths where the index finished flat, so the loss shown is entirely the mechanism and nothing else:

Index annual volatility	Index result over the year	What the −1× fund did
12%	Flat	−1.4%
16% (roughly the S&P’s long-run level)	Flat	−2.5%
20%	Flat	−3.9%
25%	Flat	−6.0%
35% (crisis conditions)	Flat	−11.5%

The pattern is not noise. The loss tracks the square of volatility, which the simulated medians confirm to within a tenth of a percentage point. And note the direction of the problem: the drag is worst exactly when volatility is highest, which is exactly when you wanted the hedge. Fees sit on top of these figures, and inverse funds charge more than plain index funds.

The practical consequence: an inverse ETF is a position measured in days. Holding one for a quarter as portfolio insurance is not a conservative choice — it is a bet that the market falls in a straight line, and markets almost never do.

Futures and currency overlays: the honest instruments

Short index futures are the cleanest equity hedge available and the least discussed, because they demand a margin account and daily attention. The cost is not a premium but a carry: futures price in the risk-free rate and subtract the dividends you no longer receive, so a short position pays away roughly that net figure over time. The trade-off is symmetry — a future removes downside and upside in equal measure, which is a feature if the goal is genuinely to neutralise exposure, and useless if the goal was to keep the recovery.

Currency hedging is the one case where the cost is quoted openly. A hedged share class or a rolling forward costs approximately the interest-rate differential between your currency and the asset’s. When your home rate is higher, hedging can actually pay you. When it is lower, you pay — and the sign flips whenever central banks diverge, which is why a hedged fund that looked cheap for years can quietly become expensive without changing anything about how it works.

The practical consequence: for a long-horizon equity investor, currency hedging is closer to a coin flip than a cost, and the case for it rests on reducing volatility rather than on improving return. For bonds it matters more, because unhedged currency swings are large relative to what the bonds themselves pay.

The one that does not cost anything

Diversification is routinely filed under hedging and it does not belong there. Spreading capital across assets driven by different things removes the risk specific to individual holdings at no cost in expected return — there is no premium, no roll, no drag. It is the only item on this page you get for free.

What it does not do is protect against the market falling as a whole. In serious dislocations, correlations between normally independent assets converge toward one and the benefit shrinks exactly when it is needed. That is not a flaw in diversification; it is the definition of a systemic event, and it is the gap that hedging exists to fill.

The failure mode worth naming: owning many things is not diversification. Twenty technology holdings behave as one position in a sector selloff. The honest test is to ask what single piece of news would damage everything you own at once, and how much of the portfolio that news reaches. Our guide to resilient sectors in times of volatility covers which exposures have historically behaved differently under stress.

When hedging is the right answer

Situation	Reasonable approach	Why
A known liability lands on a known date and the money must be there	Hedge, or move the money out of risk entirely	This is the textbook case: a defined event over a defined period, which is what options price efficiently
A single position has grown into an outsized share of the portfolio	Trim it	Selling costs nothing but tax. A collar to avoid the sale is usually tax planning wearing a risk-management costume
Concentrated stock you cannot sell — lock-up, restriction, employer plan	Collar or protective put	The rare case where sizing is genuinely unavailable, which is what makes the premium worth paying
Foreign bonds in a portfolio spent in your home currency	Hedge the currency	Currency volatility swamps the yield. On foreign equities the case is much weaker
You believe a fall is coming	Reduce the position	A hedge and a smaller position express the same view; the smaller position does it without a premium or an expiry date
The portfolio feels too risky in general	Position sizing, then allocation	The feeling is information about size. The 65/35 result at the top of this article is the whole argument

What to do instead, most of the time

Three things sit above hedging in the order of operations, and each is cheaper than any instrument on this page.

Size positions so no single failure is fatal. Every hedge assumes you are still in the game to collect on it. The arithmetic is covered in position sizing and the risk of ruin, and it outranks instrument selection by a wide margin.

Set an allocation matched to when you need the money. Equities held for a liability three years out are not a hedging problem; they are an allocation error, and no put fixes an allocation error at a price worth paying. Our guide to portfolio construction in 2026 covers the ratio question, including what 2022 actually demonstrated about bonds.

Hold enough cash that you are never a forced seller. Being made to sell during a decline is what converts a temporary fall into a permanent loss, and it is the risk most hedging programmes are unconsciously trying to solve. A cash buffer solves it directly, and the full hierarchy is in how to manage investment risk.

Hedging belongs after those three, not instead of them. Reached for first, it is an expensive way to avoid a decision about size.

Frequently asked questions

What is hedging in investing?
Taking a position designed to lose money when your main holdings lose money, so the two partly cancel. It is insurance rather than a return strategy: you accept a continuous, known cost in exchange for a smaller loss in a specific bad scenario.

What are the main portfolio hedging strategies?
Protective puts, collars, inverse ETFs, short index futures, currency forwards or hedged share classes, and high-quality government bonds. Each protects against a different risk and each charges differently — premium, daily-reset drag, financing carry, interest-rate differential or forgone return.

How much does hedging cost?
More than most people assume, because the cost is rarely quoted as a fee. Cboe’s PPUT index, which holds the S&P 500 and rolls 5% out-of-the-money monthly puts, has compounded at 6.64% a year since 1986 — and a plain 65/35 mix of equities and Treasury bills beat it by about 0.6% a year with lower risk.

How do you hedge a portfolio with ETFs?
The common routes are an inverse ETF on your index, a currency-hedged version of a fund you hold, or a shift toward short-dated government bond ETFs. The inverse route carries an important caveat: those funds reset daily, so over weeks or months their return diverges from the inverse of the index — roughly the square of annual volatility per year even when the index ends flat.

Should a long-term investor hedge at all?
Usually not, and the reason is uncomfortable: most portfolios that feel like they need hedging need smaller positions instead. Hedging belongs after position sizing, asset allocation and an adequate cash buffer are settled, not in place of them.

What is the difference between hedging and diversification?
Diversification spreads exposure across assets with different drivers, costs nothing in expected return, and removes risk specific to individual holdings. Hedging deliberately buys an offsetting position, costs money continuously, and can protect against a market-wide fall — the one thing diversification does not do, because correlations converge exactly when it matters.

Are inverse ETFs a good long-term hedge?
No. They target the inverse of one day’s return and rebalance nightly, so the compounding works against the holder in any market that moves in both directions. In a simulation of a −1× fund over a year in which the index finished flat, the fund lost 2.5% at 16% volatility and 6% at 25% — and the drag is worst precisely when volatility is highest.

Is a collar a free hedge?
Free in cash terms, since the sold call pays for the bought put. Not free in outcome: you have sold the upside above the call strike, which in a strong year is the recovery you were trying to protect. The premium is paid in returns rather than in cash.

Sources

• Haghani, V. and White, J. (2022). Who Wants Protection Like This? Elm Wealth, 15 November 2022. Source of the 65/35 comparison (0.6% a year higher return, lower risk, 22% higher Sharpe ratio, 1986 onwards) and of the twelve months to October 2022, in which rolling one-month puts added roughly 2% of loss on top of the index’s 15% decline.
• Cboe Global Indices, S&P 500 5% Put Protection Index (PPUT). Compound annual return of 6.64% and standard deviation of 12.08% since June 1986. Index methodology: long S&P 500 plus a monthly 5% out-of-the-money SPX put, rolled at expiry.
• The inverse-ETF table is our own calculation: 60,000 simulated one-year paths of a −1× daily-rebalanced fund at each volatility level, filtered to paths where the index finished within ±2% of flat, so the loss shown reflects the daily reset alone. Results match the analytical approximation (drag ≈ σ²) to within 0.1 percentage points. Fees and financing are excluded and would add to the figures shown.

Related reading

• Position sizing and the risk of ruin — the decision that sits above every instrument on this page.
• How to manage investment risk — the full hierarchy, with hedging in its proper place at the bottom.
• Portfolio construction in 2026 — what 2022 actually demonstrated about bonds as a hedge.
• Crisis-proof investments — which exposures have historically behaved differently under stress.
• The Sharpe ratio — the measure behind the 22% figure, and where it misleads.
• Lump sum vs dollar-cost averaging — the same insurance framing applied to when you invest.

This article is general information, not personalised investment advice. It does not take into account the financial situation, objectives or risk tolerance of any individual reader, and the same text is distributed to all readers. Index figures and research findings describe specific historical periods and do not predict future outcomes; simulated results are illustrations of a mechanism, not forecasts. Options and futures carry risks including the total loss of premium and, for some positions, losses exceeding the amount invested. Capital is at risk and past performance does not indicate future results.