You've probably heard that "oil is up because of the futures market," or that someone "got liquidated on a leveraged long." Futures sit underneath a huge share of what moves markets — yet most explanations stop at "a bet on price." That isn't wrong, but it skips the interesting half: what a future actually is, what it's genuinely useful for, and the part almost nobody explains — who takes the opposite side of your trade, and how they keep that risk from blowing up.

This is the first piece in a series on how market instruments really work. We'll always end up in the same place: the other side of the trade.

What a future actually is

A futures contract is a binding agreement to buy or sell something — a barrel of oil, an index, a government bond — at a price fixed today, for delivery on a set future date. It's standardized (fixed size, fixed expiry) and traded on an exchange. That's what separates it from a private bet.

The everyday version: a bakery agrees in spring to buy its winter wheat at today's price. Both sides lock in certainty. If wheat soars, the baker wins; if it crashes, the farmer does. Neither is gambling — they're removing a risk they didn't want.

The mechanics that surprise people

You don't pay the full value of the contract. You post margin — a good-faith deposit, often just 5–15% of the contract's value. That's where the built-in leverage comes from: a small deposit controls a large position.

Every day, the exchange marks your position to market. Gains are credited and losses are debited daily — not at the end. If your balance falls below the maintenance margin, you get a margin call, and if you can't meet it, your position is closed. This is the crucial, often-missed point: with futures you can lose more than your initial deposit. The leverage that magnifies a win magnifies the loss just as fast.

What futures are actually good for

Three honest uses:

• Hedging. An airline locks in fuel costs; a farmer locks in a sale price; a fund hedges a portfolio against a drop. This is the original purpose, and the most defensible.
• Leverage and efficiency. You get exposure to a large position without tying up the full amount.
• Price discovery. The futures price aggregates the market's collective expectation of where something is heading.

The other side — who's short, and how it's managed

Here's the part the "it's a bet on price" framing hides: every long future has a short on the other side. Your bought contract exists only because someone sold it. Who?

Often a hedger doing the mirror image of you — a producer locking in a sale while you lock in a purchase. Sometimes a speculator with the opposite view. Often a market maker who doesn't care about direction at all: they sell you the contract and immediately hedge by buying the underlying (or an offsetting contract), so they're left holding the spread, not the risk.

And between the two of you sits the clearinghouse. This is the quiet machinery that makes the whole thing work. Through a process called novation, the clearinghouse becomes the buyer to every seller and the seller to every buyer. You're not really trading against that anonymous counterparty anymore — you're facing the clearinghouse, which guarantees the trade. It protects itself with the margin it collects from both sides, the daily mark-to-market, and a layered default fund if someone fails. That's why a futures exchange keeps running even when individual traders blow up.

So the answer to "how is my long hedged?" is: it isn't — for you. You carry the directional risk. But the counterparty who sold it to you is usually hedged, and the clearinghouse stands behind both of you, so one person's loss doesn't cascade into everyone else's.

Where it goes wrong (and where backtests lie)

The risks are the flip side of the benefits. Leverage cuts both ways. There's an honest nuance to "you can lose more than your deposit," too: in normal, liquid conditions a forced liquidation closes you out near your margin. You lose past your deposit when the market gaps straight through that level — an overnight jump, a limit-locked move, a flash event. It's rare but real: crude oil printed a negative price in April 2020; the Swiss franc unpegged in 2015. And unlike retail CFDs in the EU, which carry mandated negative-balance protection, exchange-traded futures generally don't — the shortfall is yours. (That's the mirror image of a bought option, where your loss is capped at the premium you paid — a contrast we pick up in the next piece.)

Daily mark-to-market can also force you out at the worst possible moment. And for continuous exposure, you have to roll from the expiring contract into the next one — which, in a market in contango, quietly bleeds money on every roll. A futures strategy that looks great on paper has often ignored the roll cost and assumed fills it could never get.

That last point is exactly why we built a backtesting platform. A future isn't hard to understand — but testing whether a futures strategy actually works means modeling the margin, the roll, and realistic fills, not just drawing a line on a chart. The instrument is simple. Proving an edge in it is not.

Understand the instrument, and you understand who profits when you don't. That's the whole reason we start with the other side.

Study the past — improve your future. 🥋

Educational content, not investment advice.