Most contracts have an ending — a settlement date, a delivery day, a moment the deal concludes.

A crypto perpetual futures contract has no expiry at all. It's designed to run forever, held together not by a settlement date but by a small, recurring payment between longs and shorts every few hours, nudging the contract's price back toward the spot price.

That payment is the funding rate, and it's the first cost a lot of leveraged crypto traders don't realise they're paying until it's already been deducted several times over.

Perpetual futures — leverage with no expiry to force a decision

A traditional futures contract eventually expires, forcing a decision: close, roll, or settle. A perpetual has none of that — you can hold a leveraged position indefinitely, which sounds like flexibility and functions, for many traders, as an invitation to stay leveraged far longer than a plan ever called for.

Exchanges commonly advertise leverage up to 50x, 100x, or higher on major crypto perpetuals. At 100x, a 1% move against your position doesn't dent your margin — it erases it.

The funding rate — leverage's ongoing rent

Every few hours (commonly every 8 hours), longs and shorts pay each other a small percentage based on whether the perpetual is trading above or below the spot price. If you're leveraged long during a period of high positive funding, you are paying that rate — on your full leveraged notional, not just your margin — every single funding interval, whether the trade has moved in your favour or not.

During strongly trending or euphoric markets, funding rates can run persistently high on one side, quietly compounding into a real drag that many leveraged holders never separate out from their price P&L.

Liquidation — faster and less forgiving than equity margin calls

Indian equity or MTF margin calls typically give you at least some window to add funds. Crypto perpetual liquidation on high leverage can be near-instantaneous and automatic: the exchange's engine calculates your liquidation price the moment you open the position, and the moment price touches it, your position is force-closed by the exchange's liquidation engine — sometimes with an additional liquidation fee on top of the loss itself.

On extremely high leverage, that liquidation price can sit just a percent or two from your entry. A normal amount of ordinary crypto volatility — a swing that a spot holder wouldn't even flag — is enough to trigger it.

Auto-deleveraging — the mechanism most traders have never heard of until it happens to them

In extreme volatility, an exchange's insurance fund (built to cover liquidated positions that couldn't be closed at a fair price) can itself run dry. When that happens, some exchanges use auto-deleveraging — forcibly closing profitable opposite positions, ranked by their leverage and profit, to cover the shortfall. It means even a trader who was right and profitable can have their winning position closed early, against their will, because someone else's leveraged bet on the other side blew up.

Key Takeaway

Perpetual futures never expire — that flexibility often becomes an excuse to stay leveraged longer than any plan intended. Funding rates are a recurring, real cost charged on your full leveraged notional, paid regardless of whether your trade is currently winning. Liquidation on high crypto leverage is near-instant and automatic, unlike the multi-step margin call process in Indian equity markets. Auto-deleveraging can forcibly close even a profitable position when an exchange's insurance fund is exhausted by other traders' liquidations.