Katana Perps · Open Interest & Volume

Hourly snapshot of notional OI and trader volume across all markets on perps.katana.network.

Total Notional OI

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Total Minimum Initial Margin

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Sum across markets of OI_usd × initialMarginFraction (IMF). The minimum capital required to back current open positions — actual posted margin may be higher and is not publicly available (Kuma collateral is custodial off-chain). IMF varies 2% (BTC/ETH) → 20% (KAT/MEGA/TAO); this line diverges from total OI as the market mix shifts.

24h Trader Volume & Fees (exchange-wide)

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Per-Market OI (USD notional)

Latest Snapshot

Data source: api-perps.katana.network/v1/markets + /v1/exchange. Collected hourly on M4. Notional OI = openInterest × indexPrice; 24h volume reported by the API in USD (rolling). Fees estimated at a blended rate of 70% taker + 30% maker on documented base rates (0.04% taker / 0.01% maker) → 0.031% × volume. Excludes the 5% referral-code discount; actual fees depend on real maker/taker mix.