When a coin is in demand on Hyperliquid, its funding rate can sit well above the 0.00125% an hour it usually shows, and a long that looked cheap to hold starts paying every hour. This post works out what a high rate costs you, then goes through what you can do about it and what each option gives up.
Why the rate climbs
Hyperliquid's hourly rate is a fixed interest part, 0.00125% an hour, plus a premium part that measures how far the perp trades above or below its oracle price. When more traders want to be long than short, the perp trades above the oracle, the premium grows and longs pay shorts. The rate is capped at 4% an hour. The Hyperliquid funding rate post explains the formula in full.
So a high rate is the market telling you the long side is crowded. It can last for hours or for weeks, and it can flip negative when the crowd turns.
What a high rate costs you
Funding is charged on the full value of the position, not on the margin you put up. That is why it hurts more than the percentage suggests when you use leverage.
Say you are long $20,000 of a perp with $2,000 of margin, which is 10x, and funding runs at 0.01% an hour, eight times the usual rate.
| Held for | Funding paid | Share of your $2,000 margin |
|---|---|---|
| 1 hour | $2.00 | 0.1% |
| 1 day | $48.00 | 2.4% |
| 1 week | $336.00 | 16.8% |
A week at that rate costs about a sixth of your margin before the price has moved at all. At 20x on the same margin, the position is twice as large and so is the funding.
You can run your own numbers in the free funding fee calculator: enter the position value, the hourly rate, 1 hour as the funding interval and how long you plan to hold.
Hold for fewer hours
Funding is paid every hour you hold, so the cost grows in a straight line with time. A trade you planned for one session costs a few hours of funding; the same trade left open over a weekend costs 60 or more. If your idea only needs a day to play out, a high rate is a reason to take profit or cut the trade on time rather than letting it drift.
A smaller position does the same thing from the other direction: half the size, half the funding.
Trade spot where a market exists
Spot pays no funding. Hyperliquid runs spot markets for some coins next to the perps, and other exchanges list spot for most large coins. The cost is that spot has no leverage and you cannot short it, so it only replaces a long you would have held without much leverage anyway.
Be on the side that collects
When the rate is positive, shorts collect what longs pay. If you already wanted to be short, a high rate pays you while you wait. It is not a reason on its own to short: a crowded long can keep rising for longer than the funding covers.
Hedge with spot to collect the rate
Traders searching for funding rate arbitrage mean this: buy the coin on spot and short the same amount on the perp. Price moves on the two legs cancel out, and the short collects funding every hour the rate stays positive.
It is not free money. You pay fees on four fills, two to open and two to close. The rate can drop to the baseline or turn negative, and then the short pays. The spot and perp prices can drift apart while you hold. And the short leg is still a leveraged position: a sharp spike can liquidate it if it has too little margin, even though the spot leg gained the same amount.
Compare with an exchange that settles every 8 hours
Each exchange's perp has its own premium, so the same coin can carry a high rate on Hyperliquid and a normal one elsewhere, or the other way round. To compare, multiply Hyperliquid's hourly rate by 8 to get the rate per 8 hours. Our example rate of 0.01% an hour is 0.08% per 8 hours.
Exchanges that settle every 8 hours charge only the positions open at the settlement time, so a trade opened and closed between two settlements pays no funding at all there. On Hyperliquid every hour counts. Check the other exchange's current rate before you move, because the gap you saw may be gone by the time you open the trade.
If you trade on Hyperliquid, connect your wallet address to a free Viktury journal and every trade's PnL includes the hourly funding it paid or received.
Find out what funding has cost you so far
Most traders do not know their own funding bill, because exchanges show it as a list of small hourly payments rather than per trade. Add it up per trade and the pattern is usually clear: a handful of long holds account for most of it.
In Viktury's Hyperliquid trading journal, you add an account with your wallet address and no key. Each hourly funding payment is attached to the perp trade that was open when it was charged, so each trade's net PnL already has its funding taken out and you can see which trades it ate into.
Open a free Viktury account and paste your Hyperliquid wallet address.