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Topic cluster / Hyperliquid HIP-4 marketsSize HIP-4 trades as risk positions, not as entertainment bets. The right size depends on contract understanding, liquidity, expiry, and how much loss you can honestly absorb if the market resolves against you or exits badly.
What to remember
CFTC investor guidance on event contracts tells traders to use risk capital and understand how costs affect returns. That is the right frame here too: size the trade so a full mistake is survivable before you let yourself get excited about the thesis.
Outcome markets can compress quickly as expiry approaches, and thin books can make exits worse than the headline price suggests. So your real risk is not just whether the idea is right, but whether the contract and liquidity let you express it cleanly.
A disciplined size process asks how much can go wrong before the market ever proves you right or wrong.
Bad sizing usually starts with the phrase 'it's just a yes-no market.' Small-looking tickets can still be oversized if the book is thin, the resolution terms are fuzzy in your head, or the event is near expiry.