BitMEX indices are composite, meaning that they are calculated using a number of data sources. BitMEX currently has 16 data sources: Alga, Binance, Bitfinex, Bitget, BitMEX, Bitstamp, Bybit, Coinbase, Cryptodotcom, Gateio, HTX, Kraken, Kucoin, LBank, MEXC, OKX.

Update Schedule
Example Index Calculation for .BXBT_NEXT
Index Calculation Methodology
Example index calculation with Conversion Index
Index Weight Methodology
Index Protection Rules

Aiming to be representative of the underlying asset’s market consensus price, each BitMEX index is calculated as a weighted average of the Last Price for each constituent exchange. Index prices are calculated and published every 5 seconds. The index weights are shown in the table below. The constituents and index weights are reviewed and updated on a quarterly basis. Changes will be announced on the BitMEX website, on the BitMEX blog and via the BitMEX RSS feed, with three weeks notice before implementation. The BitMEX “NEXT” indices will be published at that time to track the hypothetical price of the indices with the new weights.

BitMEX Index Weights, assuming no constituent exchanges have been excluded due to Index Protection Rules, applicable from 27 December 2024 at 12:00:05 UTC. For current weights incorporating any exclusions refer to the relevant Composite Index Breakdown.

USD Index Family

	Binance	Bitfinex	BitMEX	Bitstamp	Bybit	Coinbase	Cryptodotcom	Gateio	HTX	Kraken	Kucoin	OKX
.B100SATS	-	-	-	-	⤇3.44%	-	-	⤇20.76%	⤇11.52%	-	-	⤇64.28%
.BACTT	82.92%	-	-	-	-	-	-	17.08%	-	-	-	-
.BADA	⤇49.35%	-	-	-	⤇9.50%	10.68%	-	⤇9.93%	⤇6.18%	2.72%	⤇3.36%	⤇8.28%
.BAPT	⤇43.97%	-	-	-	⤇13.58%	5.57%	-	⤇12.28%	⤇8.53%	-	⤇3.43%	⤇12.64%
.BARB	⤇57.49%	-	-	-	⤇11.44%	5.20%	-	⤇8.77%	⤇7.87%	-	-	⤇9.23%
.BATH	-	-	-	-	⤇21.89%	-	-	⤇9.61%	⤇44.30%	-	-	⤇24.20%
.BAVAX	⤇52.37%	-	-	-	⤇10.24%	12.11%	-	⤇7.07%	⤇8.23%	-	⤇3.02%	⤇6.96%
.BAXS	⤇50.84%	-	-	-	⤇7.09%	3.57%	-	⤇2.74%	⤇23.20%	-	⤇2.73%	⤇9.83%
.BBCH	⤇39.70%	-	-	-	⤇6.69%	9.94%	-	⤇14.31%	⤇14.41%	-	-	⤇14.95%
.BBLUR	⤇36.31%	-	-	-	⤇18.74%	3.89%	-	⤇17.22%	⤇4.25%	-	⤇2.90%	⤇16.69%
.BBMEX	-	-	⤇61.28%	-	-	-	-	⤇38.72%	-	-	-	-
.BBNB	⤇81.39%	-	-	-	⤇6.69%	-	-	⤇3.97%	⤇4.67%	-	-	⤇3.28%
.BBONK	⤇42.71%	-	-	-	⤇8.23%	32.73%	-	⤇7.15%	⤇4.70%	-	-	⤇4.48%
.BCYBERT	60.45%	-	-	-	9.15%	-	-	-	30.40%	-	-	-
.BDOGE	⤇48.05%	-	-	-	⤇7.89%	11.65%	-	⤇8.05%	⤇5.59%	-	-	⤇18.77%
.BDOT	⤇44.63%	-	-	-	⤇9.81%	9.06%	-	⤇10.93%	⤇9.45%	-	⤇3.35%	⤇12.77%
.BDYDX	⤇39.80%	-	-	-	⤇11.46%	-	-	⤇26.95%	⤇8.08%	-	-	⤇13.71%
.BEOS	⤇34.74%	-	-	-	⤇18.29%	-	-	⤇21.08%	⤇11.02%	-	-	⤇14.87%
.BETH	⤇20.37%	-	-	-	⤇10.01%	5.22%	⤇52.53%	⤇5.18%	-	-	-	⤇6.69%
.BFIL	⤇38.57%	-	-	-	⤇6.48%	3.43%	-	⤇14.70%	⤇13.73%	-	-	⤇23.09%
.BFLOKI	⤇63.98%	-	-	-	⤇6.11%	-	-	⤇10.89%	⤇9.82%	-	⤇2.60%	⤇6.60%
.BFLR	-	-	-	-	⤇23.12%	18.72%	-	⤇22.11%	-	-	⤇12.86%	⤇23.19%
.BFTM	⤇55.75%	-	-	-	⤇12.40%	-	-	⤇12.37%	⤇2.75%	3.04%	⤇7.30%	⤇6.39%
.BGMET	-	-	-	-	-	-	-	28.06%	71.94%	-	-	-
.BGMT	⤇72.76%	-	-	-	⤇12.58%	-	-	-	⤇3.53%	-	-	⤇11.13%
.BIOT	50.48%	-	-	-	12.90%	-	-	14.09%	19.97%	-	2.56%	-
.BKLAY	⤇74.14%	-	-	-	⤇5.70%	-	-	-	⤇7.14%	-	-	⤇13.02%
.BLDO	⤇42.38%	-	-	-	⤇13.64%	8.19%	-	⤇5.20%	⤇18.66%	-	-	⤇11.93%
.BLINK	⤇39.20%	-	-	-	⤇12.07%	19.74%	⤇3.03%	⤇8.53%	⤇10.79%	-	-	⤇6.64%
.BLTC	⤇39.97%	-	-	-	⤇10.23%	12.80%	-	⤇9.22%	⤇8.81%	-	⤇3.13%	⤇15.84%
.BMERL	-	-	-	-	-	-	-	⤇30.00%	-	-	⤇30.00%	⤇40.00%
.BNEAR	⤇46.13%	-	-	-	⤇11.66%	6.31%	-	⤇15.38%	⤇8.47%	-	⤇3.77%	⤇8.28%
.BOP	⤇43.68%	-	-	-	⤇15.43%	7.64%	-	⤇6.44%	⤇13.84%	-	-	⤇12.97%
.BORDI	⤇44.78%	-	-	-	⤇7.34%	-	-	⤇18.68%	⤇7.25%	-	-	⤇21.95%
.BPEPE	⤇58.32%	-	-	-	⤇9.28%	-	-	⤇9.45%	⤇7.13%	-	⤇3.14%	⤇12.68%
.BSHIB	⤇46.72%	-	-	-	⤇6.37%	17.29%	-	⤇10.46%	-	-	⤇7.63%	⤇11.53%
.BSOL	⤇52.49%	-	-	-	⤇12.97%	11.24%	-	⤇4.74%	-	4.45%	⤇3.44%	⤇10.67%
.BSUI	⤇46.77%	-	-	-	⤇9.63%	16.51%	-	⤇8.05%	⤇3.05%	-	⤇3.68%	⤇12.31%
.BTON	⤇32.54%	-	-	-	⤇20.10%	-	-	⤇5.45%	⤇13.03%	-	⤇3.85%	⤇25.03%
.BTRX	⤇59.42%	-	-	-	⤇11.25%	-	-	⤇3.84%	⤇11.68%	-	⤇3.59%	⤇10.22%
.BUSDC	-	-	-	-	-	-	-	-	-	100.00%	-	-
.BUSDT	-	8.23%	-	-	-	66.74%	-	-	-	25.03%	-	-
.BWLD	⤇61.13%	-	-	-	⤇10.90%	-	-	⤇6.93%	⤇5.39%	-	-	⤇15.65%
.BXBT	⤇25.12%	-	-	-	⤇17.46%	9.71%	⤇33.85%	⤇2.98%	⤇3.46%	-	-	⤇7.42%
.BXRP	-	-	-	6.20%	-	59.75%	21.44%	-	-	12.61%	-	-

^{⤇ Requires Conversion Index}

USDT Index Family

	Binance	Bitget	BitMEX	BitMEX	Bybit	Coinbase	Cryptodotcom	Gateio	HTX	Kraken	Kucoin	MEXC	OKX
.B1000000MOGT	-	-	-	-	-	-	-	54.94%	5.12%	-	7.43%	-	-
.B100BONKT	42.71%	-	-	-	8.23%	⤇32.73%	-	7.15%	4.70%	-	-	-	4.48%
.BADAT	49.35%	-	-	-	9.50%	⤇10.68%	-	9.93%	6.18%	⤇2.72%	3.36%	-	8.28%
.BAEVOT	38.92%	-	-	-	10.17%	-	-	4.46%	34.89%	-	-	-	11.56%
.BAPET	52.15%	-	-	-	13.30%	⤇7.99%	-	10.73%	2.94%	-	-	-	12.89%
.BAPUT	-	40.00%	-	-	-	-	-	45.00%	-	-	-	15.00%	-
.BARBT	57.49%	-	-	-	11.44%	⤇5.20%	-	8.77%	7.87%	-	-	-	9.23%
.BAVAXT	52.37%	-	-	-	10.24%	⤇12.11%	-	7.07%	8.23%	-	3.02%	-	6.96%
.BBANANAT	90.79%	-	-	-	-	-	-	-	5.51%	-	-	-	3.70%
.BBCHT	44.08%	-	-	-	7.43%	-	-	15.89%	16.00%	-	-	-	16.60%
.BBIGTIMET	-	-	-	-	-	-	-	30.06%	-	-	4.85%	-	65.09%
.BBLASTT	-	-	-	-	51.47%	-	-	15.09%	33.44%	-	-	-	-
.BBLURT	36.31%	-	-	-	18.74%	⤇3.89%	-	17.22%	4.25%	-	2.90%	-	16.69%
.BBMEXT	-	-	61.28%	61.28%	-	-	-	38.72%	-	-	-	-	-
.BBNBT	81.39%	-	-	-	6.69%	-	-	3.97%	4.67%	-	-	-	3.28%
.BBOMET	59.04%	-	-	-	4.39%	-	-	17.35%	13.93%	-	-	-	5.29%
.BBONKT	42.71%	-	-	-	8.23%	⤇32.73%	-	7.15%	4.70%	-	-	-	4.48%
.BBRETTT	-	-	-	-	44.09%	-	-	25.69%	19.68%	-	10.54%	-	-
.BCATIT	56.13%	-	-	-	19.38%	-	-	9.38%	-	-	2.73%	-	12.38%
.BCHILLGUYT	-	-	-	-	21.82%	-	-	69.34%	-	-	8.84%	-	-
.BDFIT	-	-	-	-	-	-	-	-	100.00%	-	-	-	-
.BDOGET	54.39%	-	-	-	8.93%	-	-	9.11%	6.33%	-	-	-	21.24%
.BDOGST	56.74%	-	-	-	19.15%	-	-	8.11%	-	-	-	-	16.00%
.BDOTT	44.63%	-	-	-	9.81%	⤇9.06%	-	10.93%	9.45%	-	3.35%	-	12.77%
.BDYMT	67.76%	-	-	-	12.60%	-	-	-	19.64%	-	-	-	-
.BEIGENT	51.02%	-	-	-	9.67%	-	-	12.92%	17.23%	-	-	-	9.16%
.BENAT	53.27%	-	-	-	13.78%	-	-	24.52%	4.54%	-	3.89%	-	-
.BEOST	34.74%	-	-	-	18.29%	-	-	21.08%	11.02%	-	-	-	14.87%
.BETHFIT	42.36%	-	-	-	8.03%	-	-	21.32%	20.14%	-	-	-	8.15%
.BETHT	20.37%	-	-	-	10.01%	⤇5.22%	⤇52.53%	5.18%	-	-	-	-	6.69%
.BFILT	38.57%	-	-	-	6.48%	⤇3.43%	-	14.70%	13.73%	-	-	-	23.09%
.BFLOKIT	63.98%	-	-	-	6.11%	-	-	10.89%	9.82%	-	2.60%	-	6.60%
.BFLRT	-	-	-	-	23.12%	⤇18.72%	-	22.11%	-	-	12.86%	-	23.19%
.BGEMST	-	30.00%	-	-	-	-	-	70.00%	-	-	-	-	-
.BGMTT	72.76%	-	-	-	12.58%	-	-	-	3.53%	-	-	-	11.13%
.BGOATT	-	-	-	-	12.78%	-	-	40.56%	42.27%	-	4.39%	-	-
.BGRASST	-	-	-	-	26.63%	-	-	30.86%	36.81%	-	5.70%	-	-
.BHMSTRT	60.42%	-	-	-	8.99%	-	-	13.37%	-	-	-	-	17.22%
.BHSKT	-	-	-	-	-	-	-	30.45%	-	-	69.55%	-	-
.BINJT	62.76%	-	-	-	15.76%	-	-	8.84%	-	-	5.98%	-	6.66%
.BJUPT	41.26%	-	-	-	13.09%	-	-	23.35%	10.02%	-	2.61%	-	9.67%
.BKAMAT	-	-	-	-	-	-	-	-	100.00%	-	-	-	-
.BLDOT	42.38%	-	-	-	13.64%	⤇8.19%	-	5.20%	18.66%	-	-	-	11.93%
.BLINKT	39.20%	-	-	-	12.07%	⤇19.74%	3.03%	8.53%	10.79%	-	-	-	6.64%
.BLTCT	45.83%	-	-	-	11.73%	-	-	10.58%	10.11%	-	3.59%	-	18.16%
.BLUNAT	43.63%	-	-	-	4.04%	-	-	23.02%	13.02%	-	2.80%	-	13.49%
.BMAJORT	-	-	-	-	22.60%	-	-	16.59%	-	-	8.03%	-	52.78%
.BMANTAT	71.49%	-	-	-	13.13%	-	-	2.59%	12.79%	-	-	-	-
.BMEMEMEXT	-	-	-	-	-	-	-	-	-	-	-	-	-
.BMEMET	51.30%	-	-	-	13.81%	-	-	16.69%	7.59%	-	-	-	10.61%
.BMET	-	-	-	-	-	-	-	30.00%	-	-	30.00%	-	40.00%
.BMEWT	-	-	-	-	21.75%	-	-	28.81%	14.52%	-	5.03%	-	29.89%
.BMOODENGT	-	-	-	-	-	-	-	42.17%	28.33%	-	16.98%	-	12.52%
.BMOVET	30.00%	-	-	-	-	-	-	20.00%	-	-	20.00%	-	30.00%
.BMYROT	-	-	-	-	29.06%	-	-	33.23%	28.08%	-	9.63%	-	-
.BNEART	46.13%	-	-	-	11.66%	⤇6.31%	-	15.38%	8.47%	-	3.77%	-	8.28%
.BNEIROT	94.46%	-	-	-	5.54%	-	-	-	-	-	-	-	-
.BNOTT	54.42%	-	-	-	18.19%	-	-	10.86%	-	-	3.86%	-	12.67%
.BONDOT	-	-	-	-	44.60%	-	-	30.00%	6.65%	-	6.40%	-	12.35%
.BOPT	43.68%	-	-	-	15.43%	⤇7.64%	-	6.44%	13.84%	-	-	-	12.97%
.BPENGUT	30.00%	-	-	-	25.00%	-	-	15.00%	-	-	10.00%	-	20.00%
.BPEPET	58.32%	-	-	-	9.28%	-	-	9.45%	7.13%	-	3.14%	-	12.68%
.BPIXELT	71.42%	-	-	-	-	-	-	15.15%	8.43%	-	-	-	5.00%
.BPNUTT	64.78%	-	-	-	-	-	-	9.74%	11.64%	-	-	-	13.84%
.BPOLT	62.49%	-	-	-	16.29%	-	-	7.59%	-	-	-	-	13.63%
.BPOPCATT	-	-	-	-	42.39%	-	-	41.42%	12.22%	-	3.97%	-	-
.BPORTALT	77.93%	-	-	-	13.49%	-	-	-	8.58%	-	-	-	-
.BPUFFERT	-	-	-	-	30.24%	-	-	40.92%	20.06%	-	8.78%	-	-
.BPYTHT	35.53%	-	-	-	19.69%	-	-	8.16%	9.16%	-	-	-	27.46%
.BPYUSDT	-	-	-	-	-	-	4.64%	-	95.36%	-	-	-	-
.BRARIT	-	-	-	-	-	-	-	-	-	-	-	100.00%	-
.BSAGAT	76.45%	-	-	-	-	-	-	15.34%	8.21%	-	-	-	-
.BSCRT	60.98%	-	-	-	8.81%	-	-	9.92%	12.48%	-	3.99%	-	3.82%
.BSEIT	65.19%	-	-	-	17.42%	-	-	12.32%	-	-	5.07%	-	-
.BSHIBT	46.72%	-	-	-	6.37%	⤇17.29%	-	10.46%	-	-	7.63%	-	11.53%
.BSOLT	52.49%	-	-	-	12.97%	⤇11.24%	-	4.74%	-	⤇4.45%	3.44%	-	10.67%
.BSTRKT	47.61%	-	-	-	15.78%	-	-	4.55%	17.73%	-	-	-	14.33%
.BSUIT	46.77%	-	-	-	9.63%	⤇16.51%	-	8.05%	3.05%	-	3.68%	-	12.31%
.BSUNDOGT	-	15.00%	-	-	-	-	-	10.00%	75.00%	-	-	-	-
.BSWELLT	-	-	-	-	42.20%	-	-	-	50.40%	-	7.40%	-	-
.BTAIKOT	-	-	-	-	28.61%	-	-	19.51%	51.88%	-	-	-	-
.BTIAT	51.77%	-	-	-	15.23%	-	-	15.80%	5.30%	-	3.68%	-	8.22%
.BTNSRT	47.06%	-	-	-	8.26%	-	-	17.10%	10.64%	-	-	-	16.94%
.BTONT	32.54%	-	-	-	20.10%	-	-	5.45%	13.03%	-	3.85%	-	25.03%
.BTREMPT	-	-	-	-	-	-	-	-	100.00%	-	-	-	-
.BTRUMPT	-	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BTRXT	59.42%	-	-	-	11.25%	-	-	3.84%	11.68%	-	3.59%	-	10.22%
.BUSDCT	86.48%	-	-	-	13.52%	-	-	-	-	-	-	-	-
.BUSTCT	54.77%	-	-	-	6.90%	-	-	24.64%	-	-	-	-	13.69%
.BUSUALT	-	15.00%	-	-	-	-	-	10.00%	75.00%	-	-	-	-
.BVELOT	-	-	-	-	-	-	-	68.75%	-	-	-	-	31.25%
.BWIFT	63.68%	-	-	-	12.29%	-	-	7.44%	4.90%	-	3.52%	-	8.17%
.BWLDT	61.13%	-	-	-	10.90%	-	-	6.93%	5.39%	-	-	-	15.65%
.BWOOT	70.86%	-	-	-	8.52%	-	-	-	8.47%	-	4.74%	-	7.41%
.BWT	39.34%	-	-	-	14.72%	-	-	21.02%	13.49%	-	-	-	11.43%
.BXAIT	78.41%	-	-	-	13.63%	-	-	7.96%	-	-	-	-	-
.BXAUT	-	-	-	-	-	-	-	-	100.00%	-	-	-	-
.BXBTT
.BXRDT
.BXRPT
.BXT
.BZKT
.BZROT

^{⤇ Requires Conversion Index}

XBT Index Family

	Binance	Bitfinex	Bybit	Coinbase	Cryptodotcom	Gateio	Kraken	OKX
.BBCHXBT	89.66%	-	-	-	10.34%	-	-	-
.BEOSXBT	-	-	-	-	-	42.07%	57.93%	-
.BETHXBT	45.68%	13.08%	13.97%	6.43%	-	-	3.61%	17.23%
.BLTCXBT	100.00%	-	-	-	-	-	-	-
.BTRXXBT	100.00%	-	-	-	-	-	-	-
.BXRPXBT	90.45%	-	9.55%	-	-	-	-	-

EUR Index Family

	Binance	Bitstamp	Coinbase	Kraken	OKX
.BXBTEUR	16.08%	17.71%	20.66%	36.63%	8.92%

The BitMEX index weights will be updated next on 28 March 2025 at 12:00:05 UTC.

Update Schedule

The weights for BitMEX indices will be updated immediately after each quarterly futures expiry, with updates based on three months of constituent exchange volume data. The date range for data will be from 00:00 UTC on the first day of the month for the expiring quarterly future to 00:00 UTC on the first day of the month for the next quarterly future.

For example, at 12:00:05 UTC on 25 December 2020, updated weights will be used to calculate the BitMEX indices. These weights will be announced on 4 December 2020 and will be based on constituent exchange volume data from 00:00 UTC on 1 September 2020 to 00:00 UTC on 1 December 2020. These weights will apply to the BitMEX “NEXT” indices from 4 December 2020.

The BitMEX “NEXT” indices (eg. .BXBT_NEXT) will display the hypothetical index prices with the new weights. These index prices will line up with the normal index prices once the announced weights are live (ie .BXBT_NEXT and .BXBT will have the same price).

“NEXT” indices are not used for valuation or settlement, they are used to display hypothetical index prices with new weights before implementation.

BitMEX “NEXT” Index Weights, assuming no constituent exchanges have been excluded due to Index Protection Rules, last updated on 23 December 2024. For current weights incorporating any exclusions refer to the relevant Composite Index Breakdown.

These “NEXT” index weights are computed using three months of constituent exchange volume data from 00:00 UTC on 1 September 2024 to 00:00 UTC on 1 December 2024.

USD Index Family - NEXT

	Binance	Bitfinex	BitMEX	Bitstamp	Bybit	Coinbase	Cryptodotcom	Gateio	HTX	Kraken	Kucoin	LBank	OKX
.B100SATS_NEXT	-	-	-	-	⤇3.44%	-	-	⤇20.76%	⤇11.52%	-	-	-	⤇64.28%
.BACTT_NEXT	82.92%	-	-	-	-	-	-	17.08%	-	-	-	-	-
.BADA_NEXT	⤇49.35%	-	-	-	⤇9.50%	10.68%	-	⤇9.93%	⤇6.18%	2.72%	⤇3.36%	-	⤇8.28%
.BAPT_NEXT	⤇43.97%	-	-	-	⤇13.58%	5.57%	-	⤇12.28%	⤇8.53%	-	⤇3.43%	-	⤇12.64%
.BARB_NEXT	⤇57.49%	-	-	-	⤇11.44%	5.20%	-	⤇8.77%	⤇7.87%	-	-	-	⤇9.23%
.BATH_NEXT	-	-	-	-	⤇21.89%	-	-	⤇9.61%	⤇44.30%	-	-	-	⤇24.20%
.BAVAX_NEXT	⤇52.37%	-	-	-	⤇10.24%	12.11%	-	⤇7.07%	⤇8.23%	-	⤇3.02%	-	⤇6.96%
.BAXS_NEXT	⤇50.84%	-	-	-	⤇7.09%	3.57%	-	⤇2.74%	⤇23.20%	-	⤇2.73%	-	⤇9.83%
.BBCH_NEXT	⤇39.70%	-	-	-	⤇6.69%	9.94%	-	⤇14.31%	⤇14.41%	-	-	-	⤇14.95%
.BBLUR_NEXT	⤇36.31%	-	-	-	⤇18.74%	3.89%	-	⤇17.22%	⤇4.25%	-	⤇2.90%	-	⤇16.69%
.BBMEX_NEXT	-	-	⤇61.28%	-	-	-	-	⤇38.72%	-	-	-	-	-
.BBNB_NEXT	⤇81.39%	-	-	-	⤇6.69%	-	-	⤇3.97%	⤇4.67%	-	-	-	⤇3.28%
.BBONK_NEXT	⤇42.71%	-	-	-	⤇8.23%	32.73%	-	⤇7.15%	⤇4.70%	-	-	-	⤇4.48%
.BCYBERT_NEXT	60.45%	-	-	-	9.15%	-	-	-	30.40%	-	-	-	-
.BDOGE_NEXT	⤇48.05%	-	-	-	⤇7.89%	11.65%	-	⤇8.05%	⤇5.59%	-	-	-	⤇18.77%
.BDOT_NEXT	⤇44.63%	-	-	-	⤇9.81%	9.06%	-	⤇10.93%	⤇9.45%	-	⤇3.35%	-	⤇12.77%
.BDYDX_NEXT	⤇39.80%	-	-	-	⤇11.46%	-	-	⤇26.95%	⤇8.08%	-	-	-	⤇13.71%
.BEOS_NEXT	⤇34.74%	-	-	-	⤇18.29%	-	-	⤇21.08%	⤇11.02%	-	-	-	⤇14.87%
.BETH_NEXT	⤇20.37%	-	-	-	⤇10.01%	5.22%	⤇52.53%	⤇5.18%	-	-	-	-	⤇6.69%
.BFIL_NEXT	⤇38.57%	-	-	-	⤇6.48%	3.43%	-	⤇14.70%	⤇13.73%	-	-	-	⤇23.09%
.BFLOKI_NEXT	⤇63.98%	-	-	-	⤇6.11%	-	-	⤇10.89%	⤇9.82%	-	⤇2.60%	-	⤇6.60%
.BFLR_NEXT	-	-	-	-	⤇23.12%	18.72%	-	⤇22.11%	-	-	⤇12.86%	-	⤇23.19%
.BFTM_NEXT	⤇55.75%	-	-	-	⤇12.40%	-	-	⤇12.37%	⤇2.75%	3.04%	⤇7.30%	-	⤇6.39%
.BGMET_NEXT	-	-	-	-	-	-	-	28.06%	71.94%	-	-	-	-
.BGMT_NEXT	⤇72.76%	-	-	-	⤇12.58%	-	-	-	⤇3.53%	-	-	-	⤇11.13%
.BIOT_NEXT	50.48%	-	-	-	12.90%	-	-	14.09%	19.97%	-	2.56%	-	-
.BKAMA_NEXT	-	-	-	-	-	-	-	-	⤇40.00%	-	-	⤇60.00%	-
.BKLAY_NEXT	⤇74.14%	-	-	-	⤇5.70%	-	-	-	⤇7.14%	-	-	-	⤇13.02%
.BLDO_NEXT	⤇42.38%	-	-	-	⤇13.64%	8.19%	-	⤇5.20%	⤇18.66%	-	-	-	⤇11.93%
.BLINK_NEXT	⤇39.20%	-	-	-	⤇12.07%	19.74%	⤇3.03%	⤇8.53%	⤇10.79%	-	-	-	⤇6.64%
.BLTC_NEXT	⤇39.97%	-	-	-	⤇10.23%	12.80%	-	⤇9.22%	⤇8.81%	-	⤇3.13%	-	⤇15.84%
.BMERL_NEXT	-	-	-	-	-	-	-	⤇30.00%	-	-	⤇30.00%	-	⤇40.00%
.BNEAR_NEXT	⤇46.13%	-	-	-	⤇11.66%	6.31%	-	⤇15.38%	⤇8.47%	-	⤇3.77%	-	⤇8.28%
.BOP_NEXT	⤇43.68%	-	-	-	⤇15.43%	7.64%	-	⤇6.44%	⤇13.84%	-	-	-	⤇12.97%
.BORDI_NEXT	⤇44.78%	-	-	-	⤇7.34%	-	-	⤇18.68%	⤇7.25%	-	-	-	⤇21.95%
.BPEPE_NEXT	⤇58.32%	-	-	-	⤇9.28%	-	-	⤇9.45%	⤇7.13%	-	⤇3.14%	-	⤇12.68%
.BSHIB_NEXT	⤇46.72%	-	-	-	⤇6.37%	17.29%	-	⤇10.46%	-	-	⤇7.63%	-	⤇11.53%
.BSOL_NEXT	⤇52.49%	-	-	-	⤇12.97%	11.24%	-	⤇4.74%	-	4.45%	⤇3.44%	-	⤇10.67%
.BSUI_NEXT	⤇46.77%	-	-	-	⤇9.63%	16.51%	-	⤇8.05%	⤇3.05%	-	⤇3.68%	-	⤇12.31%
.BTON_NEXT	⤇32.54%	-	-	-	⤇20.10%	-	-	⤇5.45%	⤇13.03%	-	⤇3.85%	-	⤇25.03%
.BTRX_NEXT	⤇59.42%	-	-	-	⤇11.25%	-	-	⤇3.84%	⤇11.68%	-	⤇3.59%	-	⤇10.22%
.BUSDC_NEXT	-	-	-	-	-	-	-	-	-	100.00%	-	-	-
.BUSDT_NEXT	-	8.23%	-	-	-	66.74%	-	-	-	25.03%	-	-	-
.BWLD_NEXT	⤇61.13%	-	-	-	⤇10.90%	-	-	⤇6.93%	⤇5.39%	-	-	-	⤇15.65%
.BXBT_NEXT	⤇25.12%	-	-	-	⤇17.46%	9.71%	⤇33.85%	⤇2.98%	⤇3.46%	-	-	-	⤇7.42%
.BUSDT_NEXT	-	10.67%	-	2.88%	-	58.33%	-	-	-	28.12%	-	-	-
.BUSDT_NEXT	-	10.67%	-	2.88%	-	58.33%	-	-	-	28.12%	-	-	-
.BUSDT_NEXT	-	10.67%	-	2.88%	-	58.33%	-	-	-	28.12%	-	-	-

^{⤇ Requires Conversion Index}

USDT Index Family - NEXT

	Binance	Bitget	BitMEX	Bybit	Coinbase	Cryptodotcom	Gateio	HTX	Kraken	Kucoin	MEXC	OKX
.B1000000MOGT_NEXT	-	-	-	32.51%	-	-	54.94%	5.12%	-	7.43%	-	-
.B100BONKT_NEXT	42.71%	-	-	8.23%	⤇32.73%	-	7.15%	4.70%	-	-	-	4.48%
.BADAT_NEXT	49.35%	-	-	9.50%	⤇10.68%	-	9.93%	6.18%	⤇2.72%	3.36%	-	8.28%
.BAEVOT_NEXT	38.92%	-	-	10.17%	-	-	4.46%	34.89%	-	-	-	11.56%
.BAPET_NEXT	52.15%	-	-	13.30%	⤇7.99%	-	10.73%	2.94%	-	-	-	12.89%
.BAPUT_NEXT	-	40.00%	-	-	-	-	⤇45.00%	-	-	-	⤇15.00%	-
.BARBT_NEXT	57.49%	-	-	11.44%	⤇5.20%	-	8.77%	7.87%	-	-	-	9.23%
.BAVAXT_NEXT	52.37%	-	-	10.24%	⤇12.11%	-	7.07%	8.23%	-	3.02%	-	6.96%
.BBANANAT_NEXT	90.79%	-	-	-	-	-	-	5.51%	-	-	-	3.70%
.BBCHT_NEXT	44.08%	-	-	7.43%	-	-	15.89%	16.00%	-	-	-	16.60%
.BBIGTIMET_NEXT	-	-	-	-	-	-	30.06%	-	-	4.85%	-	65.09%
.BBLASTT_NEXT	-	-	-	51.47%	-	-	15.09%	33.44%	-	-	-	-
.BBLURT_NEXT	36.31%	-	-	18.74%	⤇3.89%	-	17.22%	4.25%	-	2.90%	-	16.69%
.BBMEXT_NEXT	-	-	61.28%	-	-	-	38.72%	-	-	-	-	-
.BBNBT_NEXT	81.39%	-	-	6.69%	-	-	3.97%	4.67%	-	-	-	3.28%
.BBOMET_NEXT	59.04%	-	-	4.39%	-	-	17.35%	13.93%	-	-	-	5.29%
.BBONKT_NEXT	42.71%	-	-	8.23%	⤇32.73%	-	7.15%	4.70%	-	-	-	4.48%
.BBRETTT_NEXT	-	-	-	44.09%	-	-	25.69%	19.68%	-	10.54%	-	-
.BCATIT_NEXT	56.13%	-	-	19.38%	-	-	9.38%	-	-	2.73%	-	12.38%
.BCHILLGUYT_NEXT	-	-	-	21.82%	-	-	69.34%	-	-	8.84%	-	-
.BDFIT_NEXT	-	-	-	-	-	-	-	100.00%	-	-	-	-
.BDOGET_NEXT	54.39%	-	-	8.93%	-	-	9.11%	6.33%	-	-	-	21.24%
.BDOGST_NEXT	56.74%	-	-	19.15%	-	-	8.11%	-	-	-	-	16.00%
.BDOTT_NEXT	44.63%	-	-	9.81%	⤇9.06%	-	10.93%	9.45%	-	3.35%	-	12.77%
.BDYMT_NEXT	67.76%	-	-	12.60%	-	-	-	19.64%	-	-	-	-
.BEIGENT_NEXT	51.02%	-	-	9.67%	-	-	12.92%	17.23%	-	-	-	9.16%
.BENAT_NEXT	53.27%	-	-	13.78%	-	-	24.52%	4.54%	-	3.89%	-	-
.BEOST_NEXT	34.74%	-	-	18.29%	-	-	21.08%	11.02%	-	-	-	14.87%
.BETHFIT_NEXT	42.36%	-	-	8.03%	-	-	21.32%	20.14%	-	-	-	8.15%
.BETHT_NEXT	20.37%	-	-	10.01%	⤇5.22%	⤇52.53%	5.18%	-	-	-	-	6.69%
.BFILT_NEXT	38.57%	-	-	6.48%	⤇3.43%	-	14.70%	13.73%	-	-	-	23.09%
.BFLOKIT_NEXT	63.98%	-	-	6.11%	-	-	10.89%	9.82%	-	2.60%	-	6.60%
.BFLRT_NEXT	-	-	-	23.12%	⤇18.72%	-	22.11%	-	-	12.86%	-	23.19%
.BGEMST_NEXT	-	30.00%	-	-	-	-	70.00%	-	-	-	-	-
.BGMTT_NEXT	72.76%	-	-	12.58%	-	-	-	3.53%	-	-	-	11.13%
.BGOATT_NEXT	-	-	-	12.78%	-	-	40.56%	42.27%	-	4.39%	-	-
.BGRASST_NEXT	-	-	-	26.63%	-	-	30.86%	36.81%	-	5.70%	-	-
.BHMSTRT_NEXT	60.42%	-	-	8.99%	-	-	13.37%	-	-	-	-	17.22%
.BHSKT_NEXT	-	-	-	-	-	-	30.45%	-	-	69.55%	-	-
.BINJT_NEXT	62.76%	-	-	15.76%	-	-	8.84%	-	-	5.98%	-	6.66%
.BJUPT_NEXT	41.26%	-	-	13.09%	-	-	23.35%	10.02%	-	2.61%	-	9.67%
.BKAMAT_NEXT	-	-	-	-	-	-	-	100.00%	-	-	-	-
.BLDOT_NEXT	42.38%	-	-	13.64%	⤇8.19%	-	5.20%	18.66%	-	-	-	11.93%
.BLINKT_NEXT	39.20%	-	-	12.07%	⤇19.74%	3.03%	8.53%	10.79%	-	-	-	6.64%
.BLTCT_NEXT	45.83%	-	-	11.73%	-	-	10.58%	10.11%	-	3.59%	-	18.16%
.BLUNAT_NEXT	43.63%	-	-	4.04%	-	-	23.02%	13.02%	-	2.80%	-	13.49%
.BMAJORT_NEXT	-	-	-	22.60%	-	-	16.59%	-	-	8.03%	-	52.78%
.BMANTAT_NEXT	71.49%	-	-	13.13%	-	-	2.59%	12.79%	-	-	-	-
.BMATICT_NEXT	26.25%	-	-	7.55%	⤇37.20%	-	7.83%	10.49%	⤇7.52%	-	-	3.16%
.BMEMET_NEXT	51.30%	-	-	13.81%	-	-	16.69%	7.59%	-	-	-	10.61%
.BMET_NEXT	-	-	-	-	-	-	30.00%	-	-	30.00%	-	40.00%
.BMEWT_NEXT	-	-	-	21.75%	-	-	28.81%	14.52%	-	5.03%	-	29.89%
.BMOODENGT_NEXT	-	-	-	-	-	-	42.17%	28.33%	-	16.98%	-	12.52%
.BMOVET_NEXT	30.00%	-	-	-	-	-	20.00%	-	-	20.00%	-	30.00%
.BMYROT_NEXT	-	-	-	29.06%	-	-	33.23%	28.08%	-	9.63%	-	-
.BNEART_NEXT	46.13%	-	-	11.66%	⤇6.31%	-	15.38%	8.47%	-	3.77%	-	8.28%
.BNEIROT_NEXT	94.46%	-	-	5.54%	-	-	-	-	-	-	-	-
.BNOTT_NEXT	54.42%	-	-	18.19%	-	-	10.86%	-	-	3.86%	-	12.67%
.BONDOT_NEXT	-	-	-	44.60%	-	-	30.00%	6.65%	-	6.40%	-	12.35%
.BOPT_NEXT	43.68%	-	-	15.43%	⤇7.64%	-	6.44%	13.84%	-	-	-	12.97%
.BPENGUT_NEXT	30.00%	-	-	25.00%	-	-	15.00%	-	-	10.00%	-	20.00%
.BPEPET_NEXT	58.32%	-	-	9.28%	-	-	9.45%	7.13%	-	3.14%	-	12.68%
.BPIXELT_NEXT	71.42%	-	-	-	-	-	15.15%	8.43%	-	-	-	5.00%
.BPNUTT_NEXT	64.78%	-	-	-	-	-	9.74%	11.64%	-	-	-	13.84%
.BPOLT_NEXT	62.49%	-	-	16.29%	-	-	7.59%	-	-	-	-	13.63%
.BPOPCATT_NEXT	-	-	-	42.39%	-	-	41.42%	12.22%	-	3.97%	-	-
.BPORTALT_NEXT	77.93%	-	-	13.49%	-	-	-	8.58%	-	-	-	-
.BPUFFERT_NEXT	-	-	-	30.24%	-	-	40.92%	20.06%	-	8.78%	-	-
.BPYTHT_NEXT	35.53%	-	-	19.69%	-	-	8.16%	9.16%	-	-	-	27.46%
.BPYUSDT_NEXT	-	-	-	-	-	4.64%	-	95.36%	-	-	-	-
.BRARIT_NEXT	-	-	-	-	-	-	-	-	-	-	100.00%	-
.BSAGAT_NEXT	76.45%	-	-	-	-	-	15.34%	8.21%	-	-	-	-
.BSCRT_NEXT	60.98%	-	-	8.81%	-	-	9.92%	12.48%	-	3.99%	-	3.82%
.BSEIT_NEXT	65.19%	-	-	17.42%	-	-	12.32%	-	-	5.07%	-	-
.BSHIBT_NEXT	46.72%	-	-	6.37%	⤇17.29%	-	10.46%	-	-	7.63%	-	11.53%
.BSOLT_NEXT	52.49%	-	-	12.97%	⤇11.24%	-	4.74%	-	⤇4.45%	3.44%	-	10.67%
.BSTRKT_NEXT	47.61%	-	-	15.78%	-	-	4.55%	17.73%	-	-	-	14.33%
.BSUIT_NEXT	46.77%	-	-	9.63%	⤇16.51%	-	8.05%	3.05%	-	3.68%	-	12.31%
.BSUNDOGT_NEXT	-	15.00%	-	-	-	-	10.00%	75.00%	-	-	-	-
.BSWELLT_NEXT	-	-	-	42.20%	-	-	-	50.40%	-	7.40%	-	-
.BTAIKOT_NEXT	-	-	-	28.61%	-	-	19.51%	51.88%	-	-	-	-
.BTIAT_NEXT	51.77%	-	-	15.23%	-	-	15.80%	5.30%	-	3.68%	-	8.22%
.BTNSRT_NEXT	47.06%	-	-	8.26%	-	-	17.10%	10.64%	-	-	-	16.94%
.BTONT_NEXT	32.54%	-	-	20.10%	-	-	5.45%	13.03%	-	3.85%	-	25.03%
.BTREMPT_NEXT	-	-	-	-	-	-	-	100.00%	-	-	-	-
.BTRUMPT_NEXT	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BTRXT_NEXT	59.42%	-	-	11.25%	-	-	3.84%	11.68%	-	3.59%	-	10.22%
.BUSDCT_NEXT	86.48%	-	-	13.52%	-	-	-	-	-	-	-	-
.BUSTCT_NEXT	54.77%	-	-	6.90%	-	-	24.64%	-	-	-	-	13.69%
.BUSUALT_NEXT	-	15.00%	-	-	-	-	10.00%	75.00%	-	-	-	-
.BVELOT_NEXT	-	-	-	-	-	-	68.75%	-	-	-	-	31.25%
.BWIFT_NEXT	63.68%	-	-	12.29%	-	-	7.44%	4.90%	-	3.52%	-	8.17%
.BWLDT_NEXT	61.13%	-	-	10.90%	-	-	6.93%	5.39%	-	-	-	15.65%
.BWOOT_NEXT	70.86%	-	-	8.52%	-	-	-	8.47%	-	4.74%	-	7.41%
.BWT_NEXT	39.34%	-	-	14.72%	-	-	21.02%	13.49%	-	-	-	11.43%
.BXAIT_NEXT	78.41%	-	-	13.63%	-	-	7.96%	-	-	-	-	-
.BXAUT_NEXT	-	-	-	-	-	-	-	100.00%	-	-	-	-
.BXBTT_NEXT	32.98%	-	-	22.93%	-	23.34%	3.91%	4.54%	-	2.56%	-	9.74%
.BXRDT_NEXT	-	-	-	-	-	-	58.90%	-	-	41.10%	-	-
.BXRPT_NEXT	52.20%	-	-	17.53%	-	5.38%	8.14%	2.53%	-	4.71%	-	9.51%
.BXT_NEXT	-	-	-	21.63%	-	-	-	-	-	7.30%	-	71.07%
.BZECT_NEXT	51.30%	-	-	-	-	-	31.01%	10.07%	-	7.62%	-	-
.BZKT_NEXT	47.58%	-	-	15.02%	-	-	10.34%	17.09%	-	-	-	9.97%
.BZROT_NEXT	55.30%	-	-	15.98%	-	-	12.53%	5.87%	-	-	-	10.32%

^{⤇ Requires Conversion Index}

XBT Index Family - NEXT

	Binance	Bitfinex	Bybit	Coinbase	Cryptodotcom	Gateio	Kraken	Kucoin	OKX
.BBCHXBT_NEXT	89.66%	-	-	-	10.34%	-	-	-	-
.BEOSXBT_NEXT	-	-	-	-	-	42.07%	57.93%	-	-
.BETHXBT_NEXT	45.68%	13.08%	13.97%	6.43%	-	-	3.61%	-	17.23%
.BLTCXBT_NEXT	100.00%	-	-	-	-	-	-	-	-
.BTRXXBT_NEXT	100.00%	-	-	-	-	-	-	-	-
.BXBTETH_NEXT	⤇57.57%	⤇9.25%	⤇8.66%	⤇4.60%	-	-	-	⤇4.94%	⤇14.98%
.BXRPXBT_NEXT	90.45%	-	9.55%	-	-	-	-	-	-

EUR Index Family - NEXT

	Binance	Bitstamp	Coinbase	Kraken	OKX
.BXBTEUR_NEXT	16.08%	17.71%	20.66%	36.63%	8.92%

The next update for BitMEX “NEXT” index weights will be on 18 March 2025.

Example Index Calculation for .BXBT_NEXT

On 2 February 2020 at 00:00 UTC the Last Prices on the constituent exchanges were:

	Bitstamp	Bittrex	Coinbase	Gemini	Itbit	Kraken
Last Price	9377.17	9384.336	9380.18	9380.6	9378	9377.1

These Last Prices are multiplied by the weights to give

	Bitstamp	Bittrex	Coinbase	Gemini	Itbit	Kraken
Last Price	9377.17	9384.336	9380.18	9380.6	9378	9377.1
Weight	10.61%	2.53%	52.30%	6.89%	4.21%	23.46%
Last Price x Weight	994.918	237.424	4905.834	646.323	394.814	2199.868

The sum of Last Price x Weight across all constituents was 9379.181.

The sum of Weights across all constituents was 100%.

So the .BXBT_NEXT price was 9379.181 / (100%) = 9379.18 (rounded to nearest USD cent).

Index Calculation Methodology

BitMEX index is calculated as a weighted average of the Last Price for each constituent exchange. Index prices are calculated and published every 5 seconds. For indices with constituent(s) that require a Conversion Index, the Last Price for the constituent is calculated by taking the product or quotient of the Source Price and the Conversion Index Price, depending on the denominators of the index and the source.

Example index calculation with Conversion Index

The following .BADAT example is for illustration purpose only:

	Binance (ADAUSDT)	Huobi (ADAUSDT)	Kraken (ADAUSD)
Source Price	0.170990	0.171003	0.170913
Conversion Index	Not Required	Not Required	.BUSDT
Conversion Index Price	Not Required	Not Required	1.00072
Conversion Factor	1	1	1.00072
Last Price = Source Price / Conversion Factor	0.170990	0.171003	0.170790
Weight	72.26%	24.66%	3.08%

So the .BADAT price will be (0.170990 x 72.26%) + (0.171003 x 24.66%) + (0.170790 x 3.08%) = 0.170987.

Index Weight Methodology

The BitMEX index weights are computed using volume data obtained directly via API connection from each of the constituent exchanges listed above. Proprietary mechanisms are used to identify malformed and anomalous data, which is discarded. The index weight calculation removes constituents with insufficient trade volume.

For the avoidance of doubt, and in accordance with BitMEX Terms of Service, HDR Global Trading Limited (operator of the BitMEX trading platform) accepts no responsibility for the accuracy of any volume (or other) data received from any exchange and used to calculate the value of any BitMEX index and excludes all liability for any claimed losses arising in connection with its calculation and publication of any such index.

For further information see the individual index and index weights pages, linked in the tables above.

Index Protection Rules

BitMEX uses several methods to maintain reliable connections to the constituent exchanges. As a fallback the following tests and actions are used:

1 If a constituent exchange is unresponsive, the previous price is used.

2 If a constituent exchange’s price is unchanged for 15 minutes, the constituent is removed from the index until it is operational. This rule will not apply to FX indices which may be unchanged during traditional market closing hours.

3 (a) For indices with 3 or more constituents: if a constituent price differs from the median constituent price for that index by 10% or more, it is excluded from the index calculation.

3 (b) For indices with only 2 constituents: if a constituent price differs from the median constituent price for that index by 5% or more, the last calculated index price will be used. The index is updated once its price differs from the median by less than 5%.

3 (c) For an index with only 1 constituent: if the constituent price is 10% away from the last calculated index price, the last calculated index price will be used. The index is updated once the constituent price differs from the last calculated index price by less than 10%.

4 Excluded constituents are added back to their indices when one of the following conditions has been met for a continuous 15 minute period.

4 (a) For indices with 1 or more remaining active constituents, excluding the use of last calculated index price in 3 (c) above, the excluded constituent is within 2% of the median of the remaining active constituents’ prices;

4 (b) For indices with 1 remaining active constituent, using last calculated index price per 3 (c) above, or no remaining active constituents, the excluded constituent is within 10% of the index price.

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We recommend upgrading to the latest version of Opera, Firefox, or Chrome.