Commodity markets run on three kinds of participants: hedgers, who use contracts to protect a real business from price swings; speculators, who accept that risk hoping to profit from it; and arbitrageurs, who exploit small price gaps and, in doing so, keep prices consistent. Remove any one of them and the market works worse for the other two.
The hedger who sells: Ramesh of Himalaya Agro
Ramesh runs Himalaya Agro, a farming business growing cotton on 40 acres. In June, cotton futures for the post-harvest month trade at a price that would give him a comfortable profit over his costs. But his crop won't be ready for four months — and if prices slide by harvest, a good season in the field could still be a bad season in the bank.
So Ramesh sells cotton futures now, locking in today's price for delivery later. Come harvest:
- If cotton prices have fallen, his physical crop fetches less in the mandi — but his short futures position gains roughly the difference. Protected.
- If prices have risen, his crop earns more — but the futures position loses about as much. He gave up the windfall.
Either way, Ramesh knows his selling price in June. That certainty lets him plan seeds, labour and loans. Hedging is not about winning; it is about removing the gamble from a business that never wanted one.
The hedger who buys: Meera the jeweller
Hedging runs both directions. Meera owns a jewellery workshop and has taken wedding orders for December at prices quoted today, though she'll buy the gold in November. If gold rallies in between, her quoted prices become losses. So she buys gold futures now: a rise in gold hurts her shop purchases but rewards her futures position. The farmer fears falling prices; the jeweller fears rising ones — the market lets each shed the risk they can't carry.
The speculator: Priya the trader
Who takes the other side when Ramesh wants to sell and no jeweller happens to want cotton? Priya does. She has no farm and no workshop — she studies supply, demand, weather and charts, and trades commodity futures purely on her view of prices, aiming to buy low and sell high (or short sell and buy back lower).
Speculators are sometimes painted as the villains of commodity markets, but they perform two services the hedgers depend on: they absorb the risk hedgers want to offload, and their constant trading creates liquidity — the ability to enter or exit a position any moment at a fair price. Priya is compensated for carrying risk; when she is wrong, she pays for it.
The arbitrageur: Vikram the gap-closer
Vikram hunts mispricings. If gold futures trade meaningfully above spot gold plus the cost of storing and financing it, he buys physical gold, sells the futures, and locks in the difference regardless of where prices go. If two contract months drift out of line with each other, he trades that gap too.
Each arbitrage trade is small and quick, but collectively they act as the market's plumbing: prices for the same commodity across months and markets stay stitched together. This is the same force that keeps the futures price tethered to the spot price — explained in what is the difference between spot price and futures price, and what is basis.
Why does the market need all three?
| Participant | Brings | Takes away |
|---|---|---|
| Hedger | Genuine commercial demand for the contract | Price risk from their business |
| Speculator | Risk capital and liquidity | Trading profit (when right) |
| Arbitrageur | Price discipline across markets | Small low-risk margins |
Ramesh can hedge only because Priya will take the other side; Priya trusts the price because Vikram keeps it honest; Vikram has gaps to close only because the other two are trading. That interlocking is what commodity trading actually is once you look past the screens.
Things to keep in mind
- Know which of the three you are. Most retail traders are speculators — that's legitimate, but it means you are being paid to carry risk, not shielded from it.
- Hedging locks in certainty at the cost of upside; it is insurance, not a profit strategy.
- True arbitrage needs capital, speed and low costs; what looks like "free money" to a retail eye usually isn't after charges.
- Liquid contracts — where all three groups are active — give fairer prices and easier exits than thinly traded ones.
Read next
What is MCX? — Meet the venue where most of this trading actually happens.