BitMEX indices are composite, meaning that they are calculated using a number of data sources. BitMEX currently has 17 data sources: Alga, Binance, Bitfinex, BItget, BitMEX, Bitstamp, Bybit, Coinbase, Cryptodotcom, Gateio, Hashnote, 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 28 March 2025 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	Hashnote	HTX	Kraken	Kucoin	OKX
.B100SATS	-	-	-	-	⤇5.51%	-	-	⤇19.76%	-	⤇6.99%	-	-	⤇67.74%
.BACTT	71.57%	-	-	-	-	-	-	7.36%	-	-	-	-	21.07%
.BADA	⤇49.26%	-	-	-	⤇11.46%	14.15%	-	⤇3.59%	-	⤇8.08%	3.05%	⤇2.91%	⤇7.50%
.BAPT	⤇59.88%	-	-	-	⤇12.75%	5.56%	-	⤇4.13%	-	⤇3.46%	-	⤇3.15%	⤇11.07%
.BARB	⤇57.39%	-	-	-	⤇14.49%	7.07%	-	⤇4.34%	-	⤇6.69%	-	-	⤇10.02%
.BATH	-	-	-	-	⤇16.79%	-	-	⤇14.95%	-	⤇45.62%	-	⤇3.42%	⤇19.22%
.BAVAX	⤇57.11%	-	-	-	⤇10.54%	13.80%	-	⤇4.81%	-	⤇6.98%	-	-	⤇6.76%
.BAXS	⤇52.04%	-	-	-	⤇9.70%	4.43%	-	⤇3.40%	-	⤇19.14%	-	⤇3.06%	⤇8.23%
.BBCH	⤇43.89%	-	-	-	⤇6.82%	11.65%	-	⤇6.81%	-	⤇15.18%	-	-	⤇15.65%
.BBLUR	⤇42.95%	-	-	-	⤇19.89%	4.62%	-	⤇8.37%	-	⤇5.34%	-	⤇3.85%	⤇14.98%
.BBMEX	-	-	⤇61.28%	-	-	-	-	⤇38.72%	-	-	-	-	-
.BBNB	⤇84.84%	-	-	-	⤇7.36%	-	-	-	-	⤇3.81%	-	-	⤇3.99%
.BBONK	⤇46.36%	-	-	-	⤇10.56%	24.43%	-	⤇3.45%	-	⤇7.87%	-	⤇3.30%	⤇4.03%
.BCYBERT	52.50%	-	-	-	8.49%	-	-	-	-	39.01%	-	-	-
.BDOGE	⤇47.10%	-	-	-	⤇9.23%	10.78%	-	⤇4.84%	-	⤇6.98%	-	-	⤇21.07%
.BDOT	⤇49.02%	-	-	-	⤇9.32%	10.11%	-	⤇6.71%	-	⤇7.28%	2.80%	⤇3.03%	⤇11.73%
.BDYDX	⤇48.48%	-	-	-	⤇13.92%	-	-	⤇12.81%	-	⤇7.98%	-	-	⤇16.81%
.BEOS	⤇43.44%	-	-	-	⤇12.30%	5.05%	-	⤇11.45%	-	⤇4.99%	-	⤇2.87%	⤇19.90%
.BETH	⤇22.82%	-	-	-	⤇12.44%	6.03%	⤇51.08%	-	-	-	-	-	⤇7.63%
.BFIL	⤇42.99%	-	-	-	⤇8.30%	5.57%	-	⤇7.35%	-	⤇10.39%	-	-	⤇25.40%
.BFLOKI	⤇60.98%	-	-	-	⤇7.95%	3.95%	-	⤇8.42%	-	⤇11.89%	-	-	⤇6.81%
.BFLR	-	-	-	-	⤇19.22%	19.54%	-	⤇22.39%	-	⤇4.68%	7.13%	⤇9.09%	⤇17.95%
.BFTM	⤇57.10%	-	-	-	⤇15.64%	-	-	⤇7.18%	-	-	4.81%	⤇8.82%	⤇6.45%
.BGMET	-	-	-	-	-	-	-	15.93%	-	84.07%	-	-	-
.BGMT	⤇78.84%	-	-	-	⤇9.05%	2.91%	-	-	-	-	-	-	⤇9.20%
.BIOT	59.51%	-	-	-	11.74%	-	-	7.34%	-	21.41%	-	-	-
.BKLAY	⤇74.14%	-	-	-	⤇5.70%	-	-	-	-	⤇7.14%	-	-	⤇13.02%
.BLDO	⤇46.19%	-	-	-	⤇14.63%	8.64%	-	⤇4.96%	-	⤇10.69%	-	-	⤇14.89%
.BLINK	⤇48.58%	-	-	-	⤇12.79%	19.87%	-	⤇4.18%	-	⤇4.50%	-	⤇2.87%	⤇7.21%
.BLTC	⤇42.71%	-	-	-	⤇11.44%	14.13%	-	⤇6.32%	-	⤇6.47%	-	⤇2.97%	⤇15.96%
.BMERL	-	-	-	-	-	-	-	-	-	-	-	-	100.00%
.BNEAR	⤇53.24%	-	-	-	⤇9.34%	7.72%	-	⤇6.91%	-	⤇10.24%	-	⤇4.61%	⤇7.94%
.BOP	⤇51.24%	-	-	-	⤇13.28%	5.31%	-	⤇4.51%	-	⤇12.71%	-	-	⤇12.95%
.BORDI	⤇50.71%	-	-	-	⤇9.10%	-	-	⤇6.32%	-	⤇9.94%	-	-	⤇23.93%
.BPEPE	⤇56.27%	-	-	-	⤇10.03%	6.50%	-	⤇6.33%	-	⤇8.10%	-	⤇2.65%	⤇10.12%
.BSHIB	⤇51.58%	-	-	-	⤇6.47%	17.38%	-	⤇5.06%	-	-	-	⤇7.38%	⤇12.13%
.BSOL	⤇49.08%	-	-	-	⤇17.70%	13.83%	-	-	-	-	3.18%	⤇4.41%	⤇11.80%
.BSUI	⤇49.08%	-	-	-	⤇10.51%	16.95%	-	⤇4.71%	-	-	2.72%	⤇3.93%	⤇12.10%
.BTON	⤇29.87%	-	-	-	⤇20.62%	-	-	⤇3.67%	-	⤇18.07%	-	⤇5.37%	⤇22.40%
.BTRX	⤇70.99%	-	-	-	⤇6.81%	-	-	⤇3.56%	-	⤇8.07%	-	⤇2.53%	⤇8.04%
.BUSDC	-	-	-	-	-	-	-	-	-	-	100.00%	-	-
.BUSDT	-	8.26%	-	-	-	69.52%	-	-	-	-	22.22%	-	-
.BUSYC	-	-	-	-	-	-	-	-	⤇100.00%	-	-	-	-
.BWLD	⤇66.89%	-	-	-	⤇10.30%	-	-	⤇5.03%	-	⤇4.42%	-	-	⤇13.36%
.BXBT	⤇24.06%	-	-	-	⤇20.81%	9.94%	⤇34.23%	-	-	⤇3.32%	-	-	⤇7.64%
.BXRP	-	-	-	6.25%	-	65.03%	14.52%	-	-	-	14.20%	-	-

^{⤇ Requires Conversion Index}

USDT Index Family

	Binance	BItget	BitMEX	Bybit	Coinbase	Cryptodotcom	Gateio	HTX	Kraken	Kucoin	LBank	MEXC	OKX
.B1000000MOGT	-	-	-	38.35%	-	-	44.49%	6.36%	-	10.80%	-	-	-
.B100BONKT	46.36%	-	-	10.56%	⤇24.43%	-	3.45%	7.87%	-	3.30%	-	-	4.03%
.BADAT	49.26%	-	-	11.46%	⤇14.15%	-	3.59%	8.08%	⤇3.05%	2.91%	-	-	7.50%
.BAEVOT	40.75%	-	-	13.38%	-	-	6.17%	29.69%	-	-	-	-	10.01%
.BAI16ZT	-	-	-	40.85%	-	-	45.23%	13.92%	-	-	-	-	-
.BAIXBTT	57.77%	-	-	9.51%	-	-	14.04%	10.59%	-	-	-	-	8.09%
.BAPET	53.63%	-	-	13.25%	⤇7.21%	-	9.19%	4.06%	-	-	-	-	12.66%
.BAPUT	-	-	-	-	-	-	100.00%	-	-	-	-	-	-
.BARBT	57.39%	-	-	14.49%	⤇7.07%	-	4.34%	6.69%	-	-	-	-	10.02%
.BAVAXT	57.11%	-	-	10.54%	⤇13.80%	-	4.81%	6.98%	-	-	-	-	6.76%
.BBANANAT	82.96%	-	-	-	-	-	-	11.01%	-	-	-	-	6.03%
.BBCHT	49.68%	-	-	7.72%	-	-	7.71%	17.18%	-	-	-	-	17.71%
.BBERAT	40.99%	-	-	7.05%	-	-	9.16%	30.57%	-	4.50%	-	-	7.73%
.BBIGTIMET	-	-	-	-	-	-	18.67%	46.39%	-	-	-	-	34.94%
.BBIOT	54.77%	-	-	-	-	-	4.32%	26.44%	-	3.26%	-	-	11.21%
.BBLASTT	-	-	-	67.67%	-	-	26.01%	6.32%	-	-	-	-	-
.BBLURT	42.95%	-	-	19.89%	⤇4.62%	-	8.37%	5.34%	-	3.85%	-	-	14.98%
.BBMEXT	-	-	61.28%	-	-	-	38.72%	-	-	-	-	-	-
.BBNBT	84.84%	-	-	7.36%	-	-	-	3.81%	-	-	-	-	3.99%
.BBOMET	73.22%	-	-	9.09%	-	-	11.26%	-	-	-	-	-	6.43%
.BBONKT	46.36%	-	-	10.56%	⤇24.43%	-	3.45%	7.87%	-	3.30%	-	-	4.03%
.BBRETTT	-	-	-	56.68%	-	-	15.63%	15.61%	-	12.08%	-	-	-
.BBROCCOLIT	-	-	-	-	-	-	40.00%	-	-	-	30.00%	30.00%	-
.BCATIT	54.23%	-	-	16.59%	-	-	9.22%	-	-	3.55%	-	-	16.41%
.BCHILLGUYT	-	-	-	54.40%	-	-	33.53%	-	-	12.07%	-	-	-
.BDBRT	-	-	-	35.82%	-	-	-	64.18%	-	-	-	-	-
.BDEFIMEX	-	-	-	-	-	-	-	-	-	-	-	-	-
.BDFIT	-	-	-	-	-	-	-	67.48%	-	32.52%	-	-	-
.BDOGET	52.79%	-	-	10.35%	-	-	5.43%	7.82%	-	-	-	-	23.61%
.BDOGST	58.31%	-	-	14.12%	-	-	7.48%	-	-	3.39%	-	-	16.70%
.BDOTT	49.02%	-	-	9.32%	⤇10.11%	-	6.71%	7.28%	⤇2.80%	3.03%	-	-	11.73%
.BDUCKT	-	-	-	-	-	-	-	-	-	10.83%	-	-	89.17%
.BDYMT	64.62%	-	-	9.94%	-	-	-	25.44%	-	-	-	-	-
.BEIGENT	60.59%	-	-	14.34%	-	-	5.35%	4.70%	-	-	-	-	15.02%
.BENAT	66.06%	-	-	16.54%	-	-	13.80%	-	-	3.60%	-	-	-
.BEOST	43.44%	-	-	12.30%	⤇5.05%	-	11.45%	4.99%	-	2.87%	-	-	19.90%
.BETHFIT	58.45%	-	-	12.83%	-	-	14.07%	5.04%	-	-	-	-	9.61%
.BETHT	22.82%	-	-	12.44%	⤇6.03%	⤇51.08%	-	-	-	-	-	-	7.63%
.BFARTCOINT	-	-	-	-	-	-	53.22%	22.91%	-	23.87%	-	-	-
.BFILT	42.99%	-	-	8.30%	⤇5.57%	-	7.35%	10.39%	-	-	-	-	25.40%
.BFLOKIT	60.98%	-	-	7.95%	⤇3.95%	-	8.42%	11.89%	-	-	-	-	6.81%
.BFLRT	-	-	-	19.22%	⤇19.54%	-	22.39%	4.68%	⤇7.13%	9.09%	-	-	17.95%
.BFTRT	-	-	-	-	-	-	60.00%	-	-	-	-	40.00%	-
.BGEMST	-	-	-	-	-	-	100.00%	-	-	-	-	-	-
.BGMTT	81.20%	-	-	9.32%	-	-	-	-	-	-	-	-	9.48%
.BGOATT	-	-	-	35.12%	-	-	20.93%	27.98%	-	2.66%	-	-	13.31%
.BGPST	40.00%	-	-	30.00%	-	-	30.00%	-	-	-	-	-	-
.BGRASST	-	-	-	35.12%	-	-	9.84%	52.00%	-	3.04%	-	-	-
.BHIVET	100.00%	-	-	-	-	-	-	-	-	-	-	-	-
.BHMSTRT	56.74%	-	-	15.71%	-	-	5.13%	-	-	3.74%	-	-	18.68%
.BHSKT	-	-	-	-	-	-	100.00%	-	-	-	-	-	-
.BHYPET	-	-	-	-	-	-	17.68%	-	-	82.32%	-	-	-
.BINJT	65.84%	-	-	14.77%	-	-	5.27%	-	-	7.53%	-	-	6.59%
.BIPT	-	-	-	40.00%	-	-	-	-	-	20.00%	-	-	40.00%
.BJAILSTOOLT	-	-	-	-	-	-	30.00%	-	⤇30.00%	-	-	40.00%	-
.BJT	-	-	-	25.00%	-	-	25.00%	-	-	10.00%	-	-	40.00%
.BJUPT	53.97%	-	-	11.63%	-	-	13.88%	5.65%	-	2.90%	-	-	11.97%
.BKAITOT	-	-	-	-	-	-	40.00%	-	-	30.00%	-	30.00%	-
.BKAMAT	-	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BLDOT	46.19%	-	-	14.63%	⤇8.64%	-	4.96%	10.69%	-	-	-	-	14.89%
.BLINKT	48.58%	-	-	12.79%	⤇19.87%	-	4.18%	4.50%	-	2.87%	-	-	7.21%
.BLTCT	49.74%	-	-	13.32%	-	-	7.36%	7.54%	-	3.46%	-	-	18.58%
.BLUNAT	48.41%	-	-	5.88%	-	-	10.75%	16.55%	-	3.87%	-	-	14.54%
.BMAJORT	-	-	-	26.88%	-	-	8.86%	-	-	5.46%	-	-	58.80%
.BMANTAT	69.05%	-	-	15.08%	-	-	3.51%	12.36%	-	-	-	-	-
.BMELANIAT	-	-	-	-	-	-	40.00%	35.00%	-	-	-	25.00%	-
.BMEMEMEXT	-	-	-	-	-	-	-	-	-	-	-	-	-
.BMEMET	55.85%	-	-	16.63%	-	-	8.71%	9.05%	-	-	-	-	9.76%
.BMET	47.15%	-	-	5.94%	-	-	-	26.25%	-	-	-	-	20.66%
.BMEWT	-	-	-	27.44%	-	-	9.86%	31.98%	-	-	-	-	30.72%
.BMOODENGT	-	-	-	-	-	-	37.64%	8.44%	-	5.16%	-	-	48.76%
.BMOVET	40.94%	-	-	15.13%	-	-	5.71%	20.67%	-	-	-	-	17.55%
.BMUBARAKT	-	-	-	-	-	-	30.00%	-	-	-	30.00%	40.00%	-
.BMYROT	-	-	-	50.09%	-	-	35.25%	-	-	14.66%	-	-	-
.BNEART	53.24%	-	-	9.34%	⤇7.72%	-	6.91%	10.24%	-	4.61%	-	-	7.94%
.BNEIROT	90.15%	-	-	-	-	-	-	-	-	-	-	-	9.85%
.BNOTT	54.43%	-	-	21.42%	-	-	8.66%	-	-	3.91%	-	-	11.58%
.BONDOT	-	-	-	38.40%	-	-	32.03%	3.64%	-	6.85%	-	-	19.08%
.BOPT	51.24%	-	-	13.28%	⤇5.31%	-	4.51%	12.71%	-	-	-	-	12.95%
.BPENGUT	50.21%	-	-	20.86%	-	-	5.55%	10.11%	-	-	-	-	13.27%
.BPEPET	56.27%	-	-	10.03%	⤇6.50%	-	6.33%	8.10%	-	2.65%	-	-	10.12%
.BPIT	-	-	-	-	-	-	30.00%	-	-	-	-	30.00%	40.00%
.BPIXELT	74.94%	-	-	-	-	-	15.95%	3.67%	-	-	-	-	5.44%
.BPNUTT	64.53%	-	-	5.33%	-	-	5.71%	9.57%	-	-	-	-	14.86%
.BPOLT	64.01%	-	-	18.14%	-	-	6.15%	-	-	-	-	-	11.70%
.BPOPCATT	-	-	-	65.46%	-	-	19.73%	10.12%	-	4.69%	-	-	-
.BPORTALT	64.73%	-	-	15.29%	-	-	3.33%	16.65%	-	-	-	-	-
.BPUFFERT	-	-	-	40.00%	-	-	38.22%	12.47%	-	9.31%	-	-	-
.BPYTHT	33.49%	-	-	27.54%	-	-	6.22%	9.81%	-	3.17%	-	-	19.77%
.BPYUSDT	-	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BRARIT	-	-	-	-	-	-	-	-	-	-	-	100.00%	-
.BRAYT	35.00%	-	-	-	-	-	10.00%	40.00%	-	-	10.00%	-	5.00%
.BREDT	40.00%	-	-	30.00%	-	-	30.00%	-	-	-	-	-	-
.BSAGAT	69.03%	-	-	-	-	-	8.04%	22.93%	-	-	-	-	-
.BSCRT	67.56%	-	-	8.47%	-	-	6.02%	9.85%	-	-	-	-	8.10%
.BSEIT	67.45%	-	-	16.19%	-	-	7.46%	3.26%	-	5.64%	-	-	-
.BSHELLT	40.00%	-	-	-	-	-	40.00%	-	-	-	20.00%	-	-
.BSHIBT	51.58%	-	-	6.47%	⤇17.38%	-	5.06%	-	-	7.38%	-	-	12.13%
.BSOLT	49.08%	-	-	17.70%	⤇13.83%	-	-	-	⤇3.18%	4.41%	-	-	11.80%
.BSOLVT	60.00%	-	-	20.00%	-	-	20.00%	-	-	-	-	-	-
.BSPXT	-	-	-	40.00%	-	-	30.00%	-	-	30.00%	-	-	-
.BST	60.00%	-	-	20.00%	-	-	-	20.00%	-	-	-	-	-
.BSTRKT	47.22%	-	-	19.30%	-	-	6.02%	11.47%	-	-	-	-	15.99%
.BSUIT	49.08%	-	-	10.51%	⤇16.95%	-	4.71%	-	⤇2.72%	3.93%	-	-	12.10%
.BSUNDOGT	-	15.00%	-	-	-	-	10.00%	75.00%	-	-	-	-	-
.BSWELLT	-	-	-	22.42%	-	-	17.16%	56.27%	-	4.15%	-	-	-
.BTAIKOT	-	-	-	32.34%	-	-	35.00%	28.86%	-	3.80%	-	-	-
.BTIAT	53.16%	-	-	16.33%	-	-	6.48%	7.53%	-	8.08%	-	-	8.42%
.BTNSRT	54.34%	-	-	12.10%	-	-	12.72%	3.81%	-	-	-	-	17.03%
.BTONT	29.87%	-	-	20.62%	-	-	3.67%	18.07%	-	5.37%	-	-	22.40%
.BTREMPT	-	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BTRUMPOFFICIALT	45.00%	-	-	15.00%	-	-	15.00%	-	-	5.00%	-	-	20.00%
.BTRUMPT	-	-	-	-	-	-	50.00%	-	-	-	20.00%	30.00%	-
.BTRXT	70.99%	-	-	6.81%	-	-	3.56%	8.07%	-	2.53%	-	-	8.04%
.BTSTT	60.00%	-	-	-	-	-	-	5.00%	-	-	15.00%	20.00%	-
.BTUTT	-	-	-	-	-	-	30.00%	-	-	-	30.00%	40.00%	-
.BUSDCT	81.35%	-	-	15.92%	-	-	-	-	-	-	-	-	2.73%
.BUSTCT	59.76%	-	-	7.95%	-	-	11.46%	-	-	2.62%	-	-	18.21%
.BUSUALT	91.86%	-	-	-	-	-	8.14%	-	-	-	-	-	-
.BVELOT	-	-	-	9.67%	-	-	32.13%	16.58%	-	14.58%	-	-	27.04%
.BVINET	-	-	-	-	-	-	40.00%	-	-	-	30.00%	30.00%	-
.BVVVT	-	-	-	-	⤇40.00%	-	30.00%	-	-	-	-	30.00%	-
.BWIFT	60.69%	-	-	14.26%	-	-	4.42%	7.55%	-	3.72%	-	-	9.36%
.BWLDT	66.89%	-	-	10.30%	-	-	5.03%	4.42%	-	-	-	-	13.36%
.BWOOT	66.47%	-	-	8.00%	-	-	-	11.95%	-	5.66%	-	-	7.92%
.BWT	45.15%	-	-	17.74%	-	-	14.03%	10.49%	-	-	-	-	12.59%
.BXAIT	59.89%	-	-	27.97%	-	-	12.14%	-	-	-	-	-	-
.BXAUT	-	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BXBTT	32.04%	-	-	27.71%	-	23.05%	-	4.42%	-	2.61%	-	-	10.17%
.BXRDT	-	-	-	-	-	-	63.01%	-	-	36.99%	-	-	-
.BXRPT	56.06%	-	-	19.25%	-	4.31%	4.94%	-	-	6.76%	-	-	8.68%
.BXT	-	-	-	21.63%	-	-	-	-	-	7.30%	-	-	71.07%
.BZKT	47.58%	-	-	15.02%	-	-	10.34%	17.09%	-	-	-	-	9.97%
.BZROT	55.30%	-	-	15.98%	-	-	12.53%	5.87%	-	-	-	-	10.32%

^{⤇ Requires Conversion Index}

XBT Index Family

	Binance	Bitfinex	Bitstamp	Bybit	Coinbase	Cryptodotcom	Kraken	Kucoin	OKX
.BBCHXBT	48.51%	-	-	-	14.77%	4.55%	-	-	32.17%
.BEOSXBT	100.00%	-	-	-	-	-	-	-	-
.BETHXBT	39.07%	14.64%	-	17.89%	4.74%	-	3.18%	-	20.48%
.BLTCXBT	58.45%	-	-	-	20.47%	-	4.09%	3.74%	13.25%
.BTRXXBT	100.00%	-	-	-	-	-	-	-	-
.BXRPXBT	82.48%	-	4.74%	6.17%	-	-	6.61%	-	-

EUR Index Family

	Binance	Bitstamp	Coinbase	Kraken	OKX
.BXBTEUR	17.19%	11.71%	19.69%	29.23%	22.18%

The BitMEX index weights will be updated next on 27 June 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 18 March 2025. 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 December 2024 to 00:00 UTC on 1 March 2025.

USD Index Family - NEXT

	Binance	Bitfinex	BitMEX	Bitstamp	Bybit	Coinbase	Cryptodotcom	Gateio	Hashnote	HTX	Kraken	Kucoin	LBank	OKX
.B100SATS_NEXT	-	-	-	-	⤇5.51%	-	-	⤇19.76%	-	⤇6.99%	-	-	-	⤇67.74%
.BACTT_NEXT	71.57%	-	-	-	-	-	-	7.36%	-	-	-	-	-	21.07%
.BADA_NEXT	⤇49.26%	-	-	-	⤇11.46%	14.15%	-	⤇3.59%	-	⤇8.08%	3.05%	⤇2.91%	-	⤇7.50%
.BAPT_NEXT	⤇59.88%	-	-	-	⤇12.75%	5.56%	-	⤇4.13%	-	⤇3.46%	-	⤇3.15%	-	⤇11.07%
.BARB_NEXT	⤇57.39%	-	-	-	⤇14.49%	7.07%	-	⤇4.34%	-	⤇6.69%	-	-	-	⤇10.02%
.BATH_NEXT	-	-	-	-	⤇16.79%	-	-	⤇14.95%	-	⤇45.62%	-	⤇3.42%	-	⤇19.22%
.BAVAX_NEXT	⤇57.11%	-	-	-	⤇10.54%	13.80%	-	⤇4.81%	-	⤇6.98%	-	-	-	⤇6.76%
.BAXS_NEXT	⤇52.04%	-	-	-	⤇9.70%	4.43%	-	⤇3.40%	-	⤇19.14%	-	⤇3.06%	-	⤇8.23%
.BBCH_NEXT	⤇43.89%	-	-	-	⤇6.82%	11.65%	-	⤇6.81%	-	⤇15.18%	-	-	-	⤇15.65%
.BBLUR_NEXT	⤇42.95%	-	-	-	⤇19.89%	4.62%	-	⤇8.37%	-	⤇5.34%	-	⤇3.85%	-	⤇14.98%
.BBMEX_NEXT	-	-	⤇61.28%	-	-	-	-	⤇38.72%	-	-	-	-	-	-
.BBNB_NEXT	⤇84.84%	-	-	-	⤇7.36%	-	-	-	-	⤇3.81%	-	-	-	⤇3.99%
.BBONK_NEXT	⤇46.36%	-	-	-	⤇10.56%	24.43%	-	⤇3.45%	-	⤇7.87%	-	⤇3.30%	-	⤇4.03%
.BCYBERT_NEXT	52.50%	-	-	-	8.49%	-	-	-	-	39.01%	-	-	-	-
.BDOGE_NEXT	⤇47.10%	-	-	-	⤇9.23%	10.78%	-	⤇4.84%	-	⤇6.98%	-	-	-	⤇21.07%
.BDOT_NEXT	⤇49.02%	-	-	-	⤇9.32%	10.11%	-	⤇6.71%	-	⤇7.28%	2.80%	⤇3.03%	-	⤇11.73%
.BDYDX_NEXT	⤇48.48%	-	-	-	⤇13.92%	-	-	⤇12.81%	-	⤇7.98%	-	-	-	⤇16.81%
.BEOS_NEXT	⤇43.44%	-	-	-	⤇12.30%	5.05%	-	⤇11.45%	-	⤇4.99%	-	⤇2.87%	-	⤇19.90%
.BETH_NEXT	⤇22.82%	-	-	-	⤇12.44%	6.03%	⤇51.08%	-	-	-	-	-	-	⤇7.63%
.BFIL_NEXT	⤇42.99%	-	-	-	⤇8.30%	5.57%	-	⤇7.35%	-	⤇10.39%	-	-	-	⤇25.40%
.BFLOKI_NEXT	⤇60.98%	-	-	-	⤇7.95%	3.95%	-	⤇8.42%	-	⤇11.89%	-	-	-	⤇6.81%
.BFLR_NEXT	-	-	-	-	⤇19.22%	19.54%	-	⤇22.39%	-	⤇4.68%	7.13%	⤇9.09%	-	⤇17.95%
.BFTM_NEXT	⤇57.10%	-	-	-	⤇15.64%	-	-	⤇7.18%	-	-	4.81%	⤇8.82%	-	⤇6.45%
.BGMET_NEXT	-	-	-	-	-	-	-	15.93%	-	84.07%	-	-	-	-
.BGMT_NEXT	⤇78.84%	-	-	-	⤇9.05%	2.91%	-	-	-	-	-	-	-	⤇9.20%
.BIOT_NEXT	59.51%	-	-	-	11.74%	-	-	7.34%	-	21.41%	-	-	-	-
.BKAMA_NEXT	-	-	-	-	-	-	-	-	-	⤇40.00%	-	-	⤇60.00%	-
.BKLAY_NEXT	⤇74.14%	-	-	-	⤇5.70%	-	-	-	-	⤇7.14%	-	-	-	⤇13.02%
.BLDO_NEXT	⤇46.19%	-	-	-	⤇14.63%	8.64%	-	⤇4.96%	-	⤇10.69%	-	-	-	⤇14.89%
.BLINK_NEXT	⤇48.58%	-	-	-	⤇12.79%	19.87%	-	⤇4.18%	-	⤇4.50%	-	⤇2.87%	-	⤇7.21%
.BLTC_NEXT	⤇42.71%	-	-	-	⤇11.44%	14.13%	-	⤇6.32%	-	⤇6.47%	-	⤇2.97%	-	⤇15.96%
.BMERL_NEXT	-	-	-	-	-	-	-	-	-	-	-	-	-	100.00%
.BNEAR_NEXT	⤇53.24%	-	-	-	⤇9.34%	7.72%	-	⤇6.91%	-	⤇10.24%	-	⤇4.61%	-	⤇7.94%
.BOP_NEXT	⤇51.24%	-	-	-	⤇13.28%	5.31%	-	⤇4.51%	-	⤇12.71%	-	-	-	⤇12.95%
.BORDI_NEXT	⤇50.71%	-	-	-	⤇9.10%	-	-	⤇6.32%	-	⤇9.94%	-	-	-	⤇23.93%
.BPEPE_NEXT	⤇56.27%	-	-	-	⤇10.03%	6.50%	-	⤇6.33%	-	⤇8.10%	-	⤇2.65%	-	⤇10.12%
.BSHIB_NEXT	⤇51.58%	-	-	-	⤇6.47%	17.38%	-	⤇5.06%	-	-	-	⤇7.38%	-	⤇12.13%
.BSOL_NEXT	⤇49.08%	-	-	-	⤇17.70%	13.83%	-	-	-	-	3.18%	⤇4.41%	-	⤇11.80%
.BSUI_NEXT	⤇49.08%	-	-	-	⤇10.51%	16.95%	-	⤇4.71%	-	-	2.72%	⤇3.93%	-	⤇12.10%
.BTON_NEXT	⤇29.87%	-	-	-	⤇20.62%	-	-	⤇3.67%	-	⤇18.07%	-	⤇5.37%	-	⤇22.40%
.BTRX_NEXT	⤇70.99%	-	-	-	⤇6.81%	-	-	⤇3.56%	-	⤇8.07%	-	⤇2.53%	-	⤇8.04%
.BUSDC_NEXT	-	-	-	-	-	-	-	-	-	-	100.00%	-	-	-
.BUSDT_NEXT	-	8.26%	-	-	-	69.52%	-	-	-	-	22.22%	-	-	-
.BUSYC_NEXT	-	-	-	-	-	-	-	-	⤇100.00%	-	-	-	-	-
.BWLD_NEXT	⤇66.89%	-	-	-	⤇10.30%	-	-	⤇5.03%	-	⤇4.42%	-	-	-	⤇13.36%
.BXBT_NEXT	⤇24.06%	-	-	-	⤇20.81%	9.94%	⤇34.23%	-	-	⤇3.32%	-	-	-	⤇7.64%
.BXRP_NEXT	-	-	-	6.25%	-	65.03%	14.52%	-	-	-	14.20%	-	-	-

^{⤇ Requires Conversion Index}

USDT Index Family - NEXT

	Binance	BItget	BitMEX	Bybit	Coinbase	Cryptodotcom	Gateio	HTX	Kraken	Kucoin	LBank	MEXC	OKX
.B1000000MOGT_NEXT	-	-	-	38.35%	-	-	44.49%	6.36%	-	10.80%	-	-	-
.B100BONKT_NEXT	46.36%	-	-	10.56%	⤇24.43%	-	3.45%	7.87%	-	3.30%	-	-	4.03%
.BADAT_NEXT	49.26%	-	-	11.46%	⤇14.15%	-	3.59%	8.08%	⤇3.05%	2.91%	-	-	7.50%
.BAEVOT_NEXT	40.75%	-	-	13.38%	-	-	6.17%	29.69%	-	-	-	-	10.01%
.BAI16ZT_NEXT	-	-	-	40.85%	-	-	45.23%	13.92%	-	-	-	-	-
.BAIXBTT_NEXT	57.77%	-	-	9.51%	-	-	14.04%	10.59%	-	-	-	-	8.09%
.BAPET_NEXT	53.63%	-	-	13.25%	⤇7.21%	-	9.19%	4.06%	-	-	-	-	12.66%
.BAPUT_NEXT	-	-	-	-	-	-	100.00%	-	-	-	-	-	-
.BARBT_NEXT	57.39%	-	-	14.49%	⤇7.07%	-	4.34%	6.69%	-	-	-	-	10.02%
.BAVAXT_NEXT	57.11%	-	-	10.54%	⤇13.80%	-	4.81%	6.98%	-	-	-	-	6.76%
.BBANANAT_NEXT	82.96%	-	-	-	-	-	-	11.01%	-	-	-	-	6.03%
.BBCHT_NEXT	49.68%	-	-	7.72%	-	-	7.71%	17.18%	-	-	-	-	17.71%
.BBERAT_NEXT	40.99%	-	-	7.05%	-	-	9.16%	30.57%	-	4.50%	-	-	7.73%
.BBIGTIMET_NEXT	-	-	-	-	-	-	18.67%	46.39%	-	-	-	-	34.94%
.BBIOT_NEXT	54.77%	-	-	-	-	-	4.32%	26.44%	-	3.26%	-	-	11.21%
.BBLASTT_NEXT	-	-	-	67.67%	-	-	26.01%	6.32%	-	-	-	-	-
.BBLURT_NEXT	42.95%	-	-	19.89%	⤇4.62%	-	8.37%	5.34%	-	3.85%	-	-	14.98%
.BBMEXT_NEXT	-	-	61.28%	-	-	-	38.72%	-	-	-	-	-	-
.BBNBT_NEXT	84.84%	-	-	7.36%	-	-	-	3.81%	-	-	-	-	3.99%
.BBOMET_NEXT	73.22%	-	-	9.09%	-	-	11.26%	-	-	-	-	-	6.43%
.BBONKT_NEXT	46.36%	-	-	10.56%	⤇24.43%	-	3.45%	7.87%	-	3.30%	-	-	4.03%
.BBRETTT_NEXT	-	-	-	56.68%	-	-	15.63%	15.61%	-	12.08%	-	-	-
.BBROCCOLIT_NEXT	-	-	-	-	-	-	40.00%	-	-	-	30.00%	30.00%	-
.BCATIT_NEXT	54.23%	-	-	16.59%	-	-	9.22%	-	-	3.55%	-	-	16.41%
.BCHILLGUYT_NEXT	-	-	-	54.40%	-	-	33.53%	-	-	12.07%	-	-	-
.BDBRT_NEXT	-	-	-	35.82%	-	-	-	64.18%	-	-	-	-	-
.BDEFIMEXT	-	-	-	-	-	-	-	-	-	-	-	-	-
.BDFIT_NEXT	-	-	-	-	-	-	-	67.48%	-	32.52%	-	-	-
.BDOGET_NEXT	52.79%	-	-	10.35%	-	-	5.43%	7.82%	-	-	-	-	23.61%
.BDOGST_NEXT	58.31%	-	-	14.12%	-	-	7.48%	-	-	3.39%	-	-	16.70%
.BDOTT_NEXT	49.02%	-	-	9.32%	⤇10.11%	-	6.71%	7.28%	⤇2.80%	3.03%	-	-	11.73%
.BDUCKT_NEXT	-	-	-	-	-	-	-	-	-	10.83%	-	-	89.17%
.BDYMT_NEXT	64.62%	-	-	9.94%	-	-	-	25.44%	-	-	-	-	-
.BEIGENT_NEXT	60.59%	-	-	14.34%	-	-	5.35%	4.70%	-	-	-	-	15.02%
.BENAT_NEXT	66.06%	-	-	16.54%	-	-	13.80%	-	-	3.60%	-	-	-
.BEOST_NEXT	43.44%	-	-	12.30%	⤇5.05%	-	11.45%	4.99%	-	2.87%	-	-	19.90%
.BETHFIT_NEXT	58.45%	-	-	12.83%	-	-	14.07%	5.04%	-	-	-	-	9.61%
.BETHT_NEXT	22.82%	-	-	12.44%	⤇6.03%	⤇51.08%	-	-	-	-	-	-	7.63%
.BFARTCOINT_NEXT	-	-	-	-	-	-	53.22%	22.91%	-	23.87%	-	-	-
.BFILT_NEXT	42.99%	-	-	8.30%	⤇5.57%	-	7.35%	10.39%	-	-	-	-	25.40%
.BFLOKIT_NEXT	60.98%	-	-	7.95%	⤇3.95%	-	8.42%	11.89%	-	-	-	-	6.81%
.BFLRT_NEXT	-	-	-	19.22%	⤇19.54%	-	22.39%	4.68%	⤇7.13%	9.09%	-	-	17.95%
.BFTRT_NEXT	-	-	-	-	-	-	60.00%	-	-	-	-	40.00%	-
.BGEMST_NEXT	-	-	-	-	-	-	100.00%	-	-	-	-	-	-
.BGMTT_NEXT	81.20%	-	-	9.32%	-	-	-	-	-	-	-	-	9.48%
.BGOATT_NEXT	-	-	-	35.12%	-	-	20.93%	27.98%	-	2.66%	-	-	13.31%
.BGPST_NEXT	40.00%	-	-	30.00%	-	-	30.00%	-	-	-	-	-	-
.BGRASST_NEXT	-	-	-	35.12%	-	-	9.84%	52.00%	-	3.04%	-	-	-
.BHIVET_NEXT	100.00%	-	-	-	-	-	-	-	-	-	-	-	-
.BHMSTRT_NEXT	56.74%	-	-	15.71%	-	-	5.13%	-	-	3.74%	-	-	18.68%
.BHSKT_NEXT	-	-	-	-	-	-	100.00%	-	-	-	-	-	-
.BHYPET_NEXT	-	-	-	-	-	-	17.68%	-	-	82.32%	-	-	-
.BINJT_NEXT	65.84%	-	-	14.77%	-	-	5.27%	-	-	7.53%	-	-	6.59%
.BIPT_NEXT	-	-	-	40.00%	-	-	-	-	-	20.00%	-	-	40.00%
.BJAILSTOOLT_NEXT	-	-	-	-	-	-	30.00%	-	⤇30.00%	-	-	40.00%	-
.BJT_NEXT	-	-	-	25.00%	-	-	25.00%	-	-	10.00%	-	-	40.00%
.BJUPT_NEXT	53.97%	-	-	11.63%	-	-	13.88%	5.65%	-	2.90%	-	-	11.97%
.BKAITOT_NEXT	-	-	-	-	-	-	40.00%	-	-	30.00%	-	30.00%	-
.BKAMAT_NEXT	-	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BLDOT_NEXT	46.19%	-	-	14.63%	⤇8.64%	-	4.96%	10.69%	-	-	-	-	14.89%
.BLINKT_NEXT	48.58%	-	-	12.79%	⤇19.87%	-	4.18%	4.50%	-	2.87%	-	-	7.21%
.BLTCT_NEXT	49.74%	-	-	13.32%	-	-	7.36%	7.54%	-	3.46%	-	-	18.58%
.BLUNAT_NEXT	48.41%	-	-	5.88%	-	-	10.75%	16.55%	-	3.87%	-	-	14.54%
.BMAJORT_NEXT	-	-	-	26.88%	-	-	8.86%	-	-	5.46%	-	-	58.80%
.BMANTAT_NEXT	69.05%	-	-	15.08%	-	-	3.51%	12.36%	-	-	-	-	-
.BMATICT_NEXT	-	-	-	-	⤇86.97%	-	-	-	⤇13.03%	-	-	-	-
.BMELANIAT_NEXT	-	-	-	-	-	-	40.00%	35.00%	-	-	-	25.00%	-
.BMEMET_NEXT	55.85%	-	-	16.63%	-	-	8.71%	9.05%	-	-	-	-	9.76%
.BMET_NEXT	47.15%	-	-	5.94%	-	-	-	26.25%	-	-	-	-	20.66%
.BMEWT_NEXT	-	-	-	27.44%	-	-	9.86%	31.98%	-	-	-	-	30.72%
.BMOODENGT_NEXT	-	-	-	-	-	-	37.64%	8.44%	-	5.16%	-	-	48.76%
.BMOVET_NEXT	40.94%	-	-	15.13%	-	-	5.71%	20.67%	-	-	-	-	17.55%
.BMUBARAKT_NEXT	-	-	-	-	-	-	30.00%	-	-	-	30.00%	40.00%	-
.BMYROT_NEXT	-	-	-	50.09%	-	-	35.25%	-	-	14.66%	-	-	-
.BNEART_NEXT	53.24%	-	-	9.34%	⤇7.72%	-	6.91%	10.24%	-	4.61%	-	-	7.94%
.BNEIROT_NEXT	90.15%	-	-	-	-	-	-	-	-	-	-	-	9.85%
.BNOTT_NEXT	54.43%	-	-	21.42%	-	-	8.66%	-	-	3.91%	-	-	11.58%
.BONDOT_NEXT	-	-	-	38.40%	-	-	32.03%	3.64%	-	6.85%	-	-	19.08%
.BOPT_NEXT	51.24%	-	-	13.28%	⤇5.31%	-	4.51%	12.71%	-	-	-	-	12.95%
.BPENGUT_NEXT	50.21%	-	-	20.86%	-	-	5.55%	10.11%	-	-	-	-	13.27%
.BPEPET_NEXT	56.27%	-	-	10.03%	⤇6.50%	-	6.33%	8.10%	-	2.65%	-	-	10.12%
.BPIT_NEXT	-	-	-	-	-	-	30.00%	-	-	-	-	30.00%	40.00%
.BPIXELT_NEXT	74.94%	-	-	-	-	-	15.95%	3.67%	-	-	-	-	5.44%
.BPNUTT_NEXT	64.53%	-	-	5.33%	-	-	5.71%	9.57%	-	-	-	-	14.86%
.BPOLT_NEXT	64.01%	-	-	18.14%	-	-	6.15%	-	-	-	-	-	11.70%
.BPOPCATT_NEXT	-	-	-	65.46%	-	-	19.73%	10.12%	-	4.69%	-	-	-
.BPORTALT_NEXT	64.73%	-	-	15.29%	-	-	3.33%	16.65%	-	-	-	-	-
.BPUFFERT_NEXT	-	-	-	40.00%	-	-	38.22%	12.47%	-	9.31%	-	-	-
.BPYTHT_NEXT	33.49%	-	-	27.54%	-	-	6.22%	9.81%	-	3.17%	-	-	19.77%
.BPYUSDT_NEXT	-	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BRARIT_NEXT	-	-	-	-	-	-	-	-	-	-	-	100.00%	-
.BRAYT_NEXT	35.00%	-	-	-	-	-	10.00%	40.00%	-	-	10.00%	-	5.00%
.BREDT_NEXT	40.00%	-	-	30.00%	-	-	30.00%	-	-	-	-	-	-
.BSAGAT_NEXT	69.03%	-	-	-	-	-	8.04%	22.93%	-	-	-	-	-
.BSCRT_NEXT	67.56%	-	-	8.47%	-	-	6.02%	9.85%	-	-	-	-	8.10%
.BSEIT_NEXT	67.45%	-	-	16.19%	-	-	7.46%	3.26%	-	5.64%	-	-	-
.BSHELLT_NEXT	40.00%	-	-	-	-	-	40.00%	-	-	-	20.00%	-	-
.BSHIBT_NEXT	51.58%	-	-	6.47%	⤇17.38%	-	5.06%	-	-	7.38%	-	-	12.13%
.BSOLT_NEXT	49.08%	-	-	17.70%	⤇13.83%	-	-	-	⤇3.18%	4.41%	-	-	11.80%
.BSOLVT_NEXT	60.00%	-	-	20.00%	-	-	20.00%	-	-	-	-	-	-
.BSPXT_NEXT	-	-	-	40.00%	-	-	30.00%	-	-	30.00%	-	-	-
.BST_NEXT	60.00%	-	-	20.00%	-	-	-	20.00%	-	-	-	-	-
.BSTRKT_NEXT	47.22%	-	-	19.30%	-	-	6.02%	11.47%	-	-	-	-	15.99%
.BSUIT_NEXT	49.08%	-	-	10.51%	⤇16.95%	-	4.71%	-	⤇2.72%	3.93%	-	-	12.10%
.BSUNDOGT_NEXT	-	15.00%	-	-	-	-	10.00%	75.00%	-	-	-	-	-
.BSWELLT_NEXT	-	-	-	22.42%	-	-	17.16%	56.27%	-	4.15%	-	-	-
.BTAIKOT_NEXT	-	-	-	32.34%	-	-	35.00%	28.86%	-	3.80%	-	-	-
.BTIAT_NEXT	53.16%	-	-	16.33%	-	-	6.48%	7.53%	-	8.08%	-	-	8.42%
.BTNSRT_NEXT	54.34%	-	-	12.10%	-	-	12.72%	3.81%	-	-	-	-	17.03%
.BTONT_NEXT	29.87%	-	-	20.62%	-	-	3.67%	18.07%	-	5.37%	-	-	22.40%
.BTREMPT_NEXT	-	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BTRUMPOFFICIALT_NEXT	45.00%	-	-	15.00%	-	-	15.00%	-	-	5.00%	-	-	20.00%
.BTRUMPT_NEXT	-	-	-	-	-	-	50.00%	-	-	-	20.00%	30.00%	-
.BTRXT_NEXT	70.99%	-	-	6.81%	-	-	3.56%	8.07%	-	2.53%	-	-	8.04%
.BTSTT_NEXT	60.00%	-	-	-	-	-	-	5.00%	-	-	15.00%	20.00%	-
.BTUTT_NEXT	-	-	-	-	-	-	30.00%	-	-	-	-	40.00%	-
.BUSDCT_NEXT	81.35%	-	-	15.92%	-	-	-	-	-	-	-	-	2.73%
.BUSTCT_NEXT	59.76%	-	-	7.95%	-	-	11.46%	-	-	2.62%	-	-	18.21%
.BUSUALT_NEXT	91.86%	-	-	-	-	-	8.14%	-	-	-	-	-	-
.BVELOT_NEXT	-	-	-	9.67%	-	-	32.13%	16.58%	-	14.58%	-	-	27.04%
.BVINET_NEXT	-	-	-	-	-	-	40.00%	-	-	-	30.00%	30.00%	-
.BVVVT_NEXT	-	-	-	-	⤇40.00%	-	30.00%	-	-	-	-	30.00%	-
.BWIFT_NEXT	60.69%	-	-	14.26%	-	-	4.42%	7.55%	-	3.72%	-	-	9.36%
.BWLDT_NEXT	66.89%	-	-	10.30%	-	-	5.03%	4.42%	-	-	-	-	13.36%
.BWOOT_NEXT	66.47%	-	-	8.00%	-	-	-	11.95%	-	5.66%	-	-	7.92%
.BWT_NEXT	45.15%	-	-	17.74%	-	-	14.03%	10.49%	-	-	-	-	12.59%
.BXAIT_NEXT	59.89%	-	-	27.97%	-	-	12.14%	-	-	-	-	-	-
.BXAUT_NEXT	-	-	-	-	-	-	-	100.00%	-	-	-	-	-
.BXBTT_NEXT	32.04%	-	-	27.71%	-	23.05%	-	4.42%	-	2.61%	-	-	10.17%
.BXRDT_NEXT	-	-	-	-	-	-	63.01%	-	-	36.99%	-	-	-
.BXRPT_NEXT	56.06%	-	-	19.25%	-	4.31%	4.94%	-	-	6.76%	-	-	8.68%
.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	Bitstamp	Bybit	Coinbase	Cryptodotcom	Kraken	Kucoin	OKX
.BBCHXBT_NEXT	48.51%	-	-	-	14.77%	4.55%	-	-	32.17%
.BEOSXBT_NEXT	100.00%	-	-	-	-	-	-	-	-
.BETHXBT_NEXT	39.07%	14.64%	-	17.89%	4.74%	-	3.18%	-	20.48%
.BLTCXBT_NEXT	58.45%	-	-	-	20.47%	-	4.09%	3.74%	13.25%
.BTRXXBT_NEXT	100.00%	-	-	-	-	-	-	-	-
.BXBTETH_NEXT	⤇57.57%	⤇9.25%	-	⤇8.66%	⤇4.60%	-	-	⤇4.94%	⤇14.98%
.BXRPXBT_NEXT	82.48%	-	4.74%	6.17%	-	-	6.61%	-	-

EUR Index Family - NEXT

	Binance	Bitstamp	Coinbase	Kraken	OKX
.BXBTEUR_NEXT	17.19%	11.71%	19.69%	29.23%	22.18%

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