Index Price Oracle and Weights
Kuma sources index prices from Pyth Network with 2 second update frequency. Pyth prices are cryptographically verified on chain by the exchange smart contract.
Kuma also operates a first-party index price collection service for redundancy. If Pyth data is unavailable or stale, Kuma automatically falls back to internal index pricing data. Kuma sources prices from high-volume spot exchanges, uses the median of best ask, best bid, and last trade price as the source price, discards any data points greater than 10% away from the median of sources, and computes the weighted mean of the remaining values. Markets quoted in anything other than USD, for example USDT, are corrected for the quote value. These values are signed in hardware at collection and are verified on chain by the exchange smart contract.
Internal Index Price Sources and Weights
BTC-USD
Bybit
BTC-USDT
11.6%
Coinbase
BTC-USD
16.1%
Gateio
BTC-USDT
9.2%
Kraken
BTC-USD
3.6%
OKX
BTC-USDT
13.9%
ETH-USD
Bybit
ETH-USDT
13.78%
Coinbase
ETH-USD
12.71%
Gateio
ETH-USDT
11.37%
Kraken
ETH-USD
3.45%
OKX
ETH-USDT
16.79%
SOL-USD
Bybit
SOL-USDT
8.92%
Coinbase
SOL-USD
15.41%
Gateio
SOL-USDT
3.49%
Kraken
SOL-USD
7%
OKX
SOL-USDT
10.18%
Last updated