To ensure the spot index price accurately reflects the spot market price of each token, we have carefully selected the market prices of 3 or more major exchanges as the weighted index constituents for each token. Measures are introduced to handle abnormal situations.
1. Spot Index Constituents
Asset
|
Exchange
|
Weight
|
BTC
|
OKEx
|
25.0%
|
Binance
|
25.0%
|
|
Huobi
|
25.0%
|
|
Poloniex
|
25.0%
|
|
ETH
|
OKEx
|
20.0%
|
Huobi
|
20.0%
|
|
Binance
|
20.0%
|
|
Bitfinex
|
20.0%
|
|
Bittrex
|
20.0%
|
|
ETC
|
OKEx
|
25.0%
|
Huobi
|
25.0%
|
|
Binance
|
25.0%
|
|
Coinbase Pro
|
25.0%
|
|
LTC
|
OKEx
|
25.0%
|
Huobi
|
25.0%
|
|
Binance
|
25.0%
|
|
Coinbase Pro
|
25.0%
|
|
EOS
|
OKEx
|
33.3%
|
Huobi
|
33.3%
|
|
Binance
|
33.3%
|
|
BCH
|
OKEx
|
25.0%
|
Huobi
|
25.0%
|
|
Binance
|
25.0%
|
|
Coinbase Pro
|
25.0%
|
|
BSV
|
OKEx
|
25.0%
|
Huobi
|
25.0%
|
|
Bitfinex
|
25.0%
|
|
Poloniex
|
25.0%
|
2. Spot Index Price Calculation
- The price and volume of each index constituent is retrieved from the selected exchanges in real time;
- If the relevant exchange is under maintenance, or if any constituent price/volume has not updated for more than 30 minutes, the constituent data will be temporarily treated as invalid and excluded from index calculation;
- For trading pairs with BTC as quote currency, the prices will be converted to USDT by multiplying the OKEx BTC/USDT index;
- Final calculation depends on the number of exchanges with valid data, details are as follows:
- More than 3 exchanges with valid data: apply equally-weighted price average (however, if the price of any exchange deviates more than 3% from the median price of all exchanges, the exchange's price will be bounded within median price x 0.97 and median price x 1.03);
- Only 2 exchanges with valid data: apply equally-weighted price average;
- Only 1 exchange with valid data: its last traded price will be used as the index price directly;
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