Question 1

What is funding carry on a pre-IPO perpetual?

Accepted Answer

On an ordinary crypto perpetual, funding exists to keep the perp's price tethered to a real spot market: when the perp trades rich, longs pay shorts until the gap closes, and that mechanism naturally pulls funding back toward zero over time because arbitrageurs can trade the spot asset against the perp. Pre-IPO perpetuals like SpaceX-PERP, OpenAI-PERP, or Anthropic-PERP have no spot market to arbitrage against at all — there's no listed SpaceX stock to buy and short against the perp, so the usual mean-reversion force simply doesn't exist. That lets funding run extremely high and stay stubbornly one-directional for as long as demand stays lopsided (nearly all buyers, few or no natural sellers). Funding carry is the running cost of holding a position through that: it accrues continuously (in practice, in periodic installments, commonly every 8 hours) regardless of whether the underlying eventually lists at a higher or lower price than your entry. This calculator turns that running accrual into one dollar figure — the total funding paid or received if you hold from entry until the day you're evaluating.

Question 2

Why did SpaceX-PERP funding hit 54.75% APR?

Accepted Answer

Per Hyperliquid and Talos research, SpaceX-PERP traded with heavy one-sided long demand — traders wanting exposure to a private company they otherwise can't buy shares of — and open interest around $42M with essentially no natural short side willing to take the other side at a reasonable rate. On a normal perp, an arbitrageur would short the perp and buy the spot asset to capture that funding risk-free, which pushes the rate back down; on a pre-IPO perp there's no spot SpaceX stock to buy, so nobody can run that trade. The funding mechanism is the exchange's only lever to try to balance the book, so it kept ratcheting the rate up — trying to make the long side expensive enough, or the short side attractive enough, to bring in more sellers. With no natural counterparty showing up, the rate simply stayed pinned near the extreme (~54.75% annualized) for an extended stretch instead of mean-reverting the way it would on BTC or ETH perps. It's a structural feature of these markets, not a temporary glitch: it can persist exactly as long as demand stays this lopsided.

Question 3

How much does funding actually cost me if I hold to listing?

Accepted Answer

The accrual is linear and simple: funding cost equals your position's notional value multiplied by the annualized rate divided by 365, multiplied by the number of days you hold. At SpaceX-PERP's roughly 54.75% APR, a $20,000 long position accrues about $30 per day in funding, or roughly $630 over 21 days — before any price movement is even considered. The critical part is that this is a running cost paid on a schedule (commonly every 8 hours), not a one-time fee, and it's owed regardless of whether you end up right on direction. A trader who is completely correct that the company will list higher can still lose money if funding eats more than the price gain, and a trader who's wrong on direction pays both the price loss and the funding on top of it. Because there's no spot market to cap or mean-revert the rate on these instruments, that running cost can also be much larger, for much longer, than what traders are used to on ordinary crypto perps.

Question 4

Should I account for funding when picking a pre-IPO perp entry?

Accepted Answer

Yes — at high, sustained funding rates, the price needs to move meaningfully in your favor just to cover the carry before you're even at breakeven, and that breakeven move gets bigger the longer you hold. The breakeven move is simply the annualized rate divided by 365, multiplied by days held, expressed as a percentage: at 54.75% APR over 21 days that's about 3.15%, meaning the underlying needs to move more than 3.15% in your favor just for funding to be a wash, with anything less turning what looks like a directionally-correct trade into a net loss. This is exactly what played out on SpaceX-PERP: the perp opened funding-heavy at that ~54.75% APR, the actual SpaceX listing came in below the perp's implied price, and funding alone accounted for roughly 31% of the resulting loss on margin for longs who held through it. Before entering a pre-IPO perp, it's worth explicitly computing the breakeven move at your intended holding period so you know how large a correct call you actually need to make, not just which direction to bet.

Pre-IPO Perpetual Funding Carry Calculator

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