Commodities & indices · Beginner

Risk Management For Commodities And Index Trading

The risk rules are the same ones as everywhere else, with three adjustments: minimum contract size, a per-theme ceiling, and gap risk over closures.

Last reviewed 15 September 2026 by the MarketPro research desk · Editorial policy

In short

Risk management for commodities and indices rests on four things: sizing every position from a fixed percentage of the account and the stop distance, capping total exposure per theme rather than per instrument, knowing the scheduled releases specific to that market, and allowing for gap risk because these markets close. The extra constraint is minimum contract size, which can exceed a small account's entire risk budget.

What to remember

The smallest tradable contract can exceed your risk budget. A 300 point Dow stop at 1 USD a point is 6% of a 5,000 USD account.
Margin is a deposit, not a measure of exposure. One Dow contract near 40,000 carries 40,000 USD of exposure on a 2,000 USD deposit.
Correlations rise towards one in a selloff, so three index positions at 1% each behave as one position at 3% when it matters.
Every instrument has its own event calendar: inventories for crude, storage for gas, supply estimates for grains, rate decisions for indices.
Halving size before a closure is more useful than tightening a stop, because a gap jumps the stop either way.

Lesson 16 of 16 in Commodities and indices

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When the smallest tradable size is larger than your risk budget

Start with the arithmetic that stops most small accounts before anything else does. You have 5,000 USD and a 1% per-trade risk budget, so 50 USD. You want to trade the Dow, which near 40,000 has an average daily range around 400 points, so a sensible stop sits around 300 points away.

At a typical index CFD value of 1 USD per point per contract, 50 USD of risk divided by 300 points is 0.17 contracts. If your broker's minimum is one contract, the smallest position you can open risks 300 USD, which is 6% of the account. On micro Dow futures at 0.50 USD a point it is 150 USD, or 3%. Still triple the budget.

There are exactly three honest responses. Find a broker quoting fractional sizes on that index. Trade a smaller-point-value instrument where the minimum fits. Or accept that this instrument does not fit this account yet. What is not a response is widening the risk budget to match the contract, which is the decision that turns a 5,000 USD account into a 3,000 USD account over a bad fortnight. Run every instrument you are considering through the position size calculator before funding anything, and check the minimum lot size in the contract specification.

Leverage describes the notional, not the deposit

Margin is a deposit, not a measure of exposure. Stay with the Dow. One contract at 1 USD per point near 40,000 holds 40,000 USD of exposure, and at 1:20 the platform asks 2,000 USD to carry it. The 2,000 is what you post. The 40,000 is what moves, so the ordinary 400 point day is 400 USD against your balance whatever the margin line says, and a 5% adverse move takes the deposit in full.

Two consequences follow. Losses can exceed the deposit on some products in some jurisdictions, because negative balance protection is a regulatory feature rather than a universal one, so check what applies to your account. And margin requirements are raised during volatility, sometimes intraday, which can force a position to be closed at precisely the worst moment. The exchange or broker's risk team is not obliged to wait for your thesis to work out.

Three indices is one position

Long the S&P 500, long the Nasdaq 100 and long a European index at 1% each looks like 3% diversified across two continents. During a risk-off session it is one trade at 3%, and during a serious one it behaves like more, because equity index correlations rise towards one exactly when they are tested.

The same applies across asset classes, which is the part people miss. Commodities and indices are often lightly correlated in normal conditions and converge sharply in a liquidation, when leveraged holders sell whatever is liquid regardless of what they think about it. A commodity position is not automatically a hedge against an index position, and a portfolio built on that assumption discovers the fact on the worst day of the year.

The workable handling is a ceiling per theme rather than per ticker. Name the theme in plain words, "long equity beta", "short dollar", "long energy", give it one number the account may lose on it, and subtract from that number every time you add a position expressing it. Two index longs at 1% each have used two thirds of a 3% equity ceiling, not 1% of a whole account. The full framework is in the risk management guide.

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The calendar is different for every instrument

Event risk in this asset class is not one calendar, it is several, and the one that matters depends on what you hold.

Indices answer to central bank decisions, inflation prints, employment data and their own earnings season, when individual constituents can gap the whole index.
Crude answers to weekly inventory data and to producer group meetings that are scheduled months in advance.
Natural gas answers to a weekly storage figure and to weather model runs that arrive several times a day.
Grains answer to monthly supply and demand estimates, planting reports and quarterly stocks.
Gold answers to real yields, so to the same releases as the indices but through a different channel.

Before opening a position, check whether a scheduled release for that specific instrument lands before your intended exit. If it does, either size for the wider range or stay out. Spreads around a major release can multiply several times over, so the stop distance that was comfortable an hour earlier may not survive the noise.

Gap risk is the part the stop does not cover

Unlike currencies, these markets close, and a resting order cannot execute in a market that is not trading. When one reopens past your level the stop becomes a market order at whatever is bid, so the loss is set by the size of the gap rather than by the distance you chose.

Work the number on a commodity, because the same hole sits in every market that shuts. Crude settles Friday at 78.00 and your stop is 1.20 below at 76.80, which on 100 barrels is 120 USD. A weekend headline out of a producing region reopens it at 74.50. The stop triggers into the reopen and fills near there, so the loss is 350 USD, close to three times what you sized for. Half the position into the closure and the worst case is back inside the budget, which is why reducing beats tightening a stop that the gap jumps either way.

The same logic applies to earnings dates for a heavily concentrated index, to production announcements for energy, and to any policy decision that lands while the exchange is shut. Model the gap, not the range. Then see what a run of those costs by putting your own numbers through the drawdown calculator.

Neither one is the safe side of the book

The idea that indices are the conservative choice and commodities the speculative one does not survive contact with the numbers. A broad equity index has drawn down more than 50% within living memory, and natural gas commonly moves 5% in a session. Both statements are true at once, and neither instrument is inherently the safer holding.

What varies is the shape of the risk, not its presence. Indices carry concentration risk in a handful of constituents, gap risk over closures and correlation risk with everything else in a selloff. Commodities carry physical supply shocks, limit moves where you cannot exit, roll costs on longer holds and volatility that changes regime without warning.

Five lines to write down before Monday

Everything above reduces to a short list you can keep next to the platform: your per-trade risk in account currency, your maximum exposure per theme, your daily and weekly loss limits, your rule for holding through a scheduled release, and your rule for holding over a weekend.

None of this removes risk or makes any particular trade work out. What it does is keep the losses inside a range you chose in advance, rather than one you discover afterwards, and it keeps you solvent long enough for a genuine edge to matter. To see why that last point is not rhetorical, put your own win rate and reward-to-risk into the risk of ruin calculator and change nothing but the risk per trade.

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Run the numbers while this is fresh

Work it through on your own position size. Nothing leaves your browser and there is no sign-up: Pip value calculator, Position size calculator, Margin calculator.

Written and reviewed by the MarketPro research desk

MarketPro is a trading-signal and trading-education app operated by Harajuku Holdings LTD (Cyprus). Our signal desk publishes and tracks every trade idea in-app, and every page here is checked against the app's live behaviour before publishing. Last reviewed 15 September 2026. How we produce signals and content · About MarketPro

FAQ

Risk Management For Commodities And Index Trading: questions

How much should I risk per trade on indices and commodities?

The same fixed percentage you would use anywhere, commonly 0.5% to 2% of account equity, with the position size derived from that figure and the stop distance. The complication in this asset class is that the smallest tradable contract may risk more than your budget allows. On a 5,000 USD account, a 300 point Dow stop at 1 USD per point risks 300 USD, or 6%. If no available contract size fits, the instrument does not fit the account yet.

Are stock indices safer to trade than commodities?

Neither is inherently safer, they simply fail differently. Broad equity indices have drawn down more than 50% historically and can gap over weekends, and their constituents are often concentrated enough that a few companies drive the whole index. Commodities carry physical supply shocks, daily price limits that can prevent an exit, and volatility that changes regime without warning. Treating either as the conservative option is what leads to sizing it as though the risk were smaller.

Does a stop-loss protect against an overnight gap in an index?

Not fully, and the useful answer is arithmetic rather than a different order type. Assume a gap of two to three times your normal stop distance and see what it does to the loss. If a 1% risk becomes 3% across a weekend, the position is either halved before the close or shut, because no stop placement changes anything once the market has already reopened past your level. Some brokers offer guaranteed stop orders that do fill at your price, paid for through a wider spread or a premium, which makes it a cost decision rather than a free fix.

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