BTCUSD: Price Index Definition

Contracts Guide

.BARBT30M: 30-minutes Arbitrum/Tether BitMEX Index TWAP

.BARBT30M Index Details

The BitMEX .BARBT30M Index is a 30-minute TWAP of the Arbitrum price from the .BARBT Index. These values are used for settlements. The TWAP is calculated every 4 hours.

This index is composite and hybrid, which means the price is built from multiple sources against multiple underlying currencies or cryptocurrencies. The Source Prices are converted to a common denominator using the corresponding BitMEX index. See the "Composite Index Breakdown" below for information on the constituents. If a constituent stops publishing or no trades are printed for over 15 minutes, BitMEX may automatically remove that constituent from the index until trading resumes.

Further information on the composition and calculation of BitMEX indices is available.

.BARBT30M Index Historical Values

Index Values

Time	Symbol	Price.BARBT30M
2 May 2025, 8:00:00 pm	.BARBT30M	0.3363
2 May 2025, 4:00:00 pm	.BARBT30M	0.3381
2 May 2025, 12:00:00 pm	.BARBT30M	0.3358
2 May 2025, 8:00:00 am	.BARBT30M	0.3346
2 May 2025, 4:00:00 am	.BARBT30M	0.3430
2 May 2025, 12:00:00 am	.BARBT30M	0.3388
1 May 2025, 8:00:00 pm	.BARBT30M	0.3410
1 May 2025, 4:00:00 pm	.BARBT30M	0.3411
1 May 2025, 12:00:00 pm	.BARBT30M	0.3399
1 May 2025, 8:00:00 am	.BARBT30M	0.3306
1 May 2025, 4:00:00 am	.BARBT30M	0.3281
1 May 2025, 12:00:00 am	.BARBT30M	0.3261
30 Apr 2025, 8:00:00 pm	.BARBT30M	0.3244
30 Apr 2025, 4:00:00 pm	.BARBT30M	0.3238
30 Apr 2025, 12:00:00 pm	.BARBT30M	0.3342
30 Apr 2025, 8:00:00 am	.BARBT30M	0.3259
30 Apr 2025, 4:00:00 am	.BARBT30M	0.3280
30 Apr 2025, 12:00:00 am	.BARBT30M	0.3268
29 Apr 2025, 8:00:00 pm	.BARBT30M	0.3362
29 Apr 2025, 4:00:00 pm	.BARBT30M	0.3358
29 Apr 2025, 12:00:00 pm	.BARBT30M	0.3376
29 Apr 2025, 8:00:00 am	.BARBT30M	0.3406
29 Apr 2025, 4:00:00 am	.BARBT30M	0.3359
29 Apr 2025, 12:00:00 am	.BARBT30M	0.3358
28 Apr 2025, 8:00:00 pm	.BARBT30M	0.3408
28 Apr 2025, 4:00:00 pm	.BARBT30M	0.3305
28 Apr 2025, 12:00:00 pm	.BARBT30M	0.3451
28 Apr 2025, 8:00:00 am	.BARBT30M	0.3446
28 Apr 2025, 4:00:00 am	.BARBT30M	0.3359
28 Apr 2025, 12:00:00 am	.BARBT30M	0.3364
27 Apr 2025, 8:00:00 pm	.BARBT30M	0.3383
27 Apr 2025, 4:00:00 pm	.BARBT30M	0.3351
27 Apr 2025, 12:00:00 pm	.BARBT30M	0.3396
27 Apr 2025, 8:00:00 am	.BARBT30M	0.3418
27 Apr 2025, 4:00:00 am	.BARBT30M	0.3460
27 Apr 2025, 12:00:00 am	.BARBT30M	0.3526
26 Apr 2025, 8:00:00 pm	.BARBT30M	0.3502
26 Apr 2025, 4:00:00 pm	.BARBT30M	0.3499
26 Apr 2025, 12:00:00 pm	.BARBT30M	0.3481
26 Apr 2025, 8:00:00 am	.BARBT30M	0.3532
26 Apr 2025, 4:00:00 am	.BARBT30M	0.3517
26 Apr 2025, 12:00:00 am	.BARBT30M	0.3465
25 Apr 2025, 8:00:00 pm	.BARBT30M	0.3445
25 Apr 2025, 4:00:00 pm	.BARBT30M	0.3492
25 Apr 2025, 12:00:00 pm	.BARBT30M	0.3471
25 Apr 2025, 8:00:00 am	.BARBT30M	0.3452
25 Apr 2025, 4:00:00 am	.BARBT30M	0.3383
25 Apr 2025, 12:00:00 am	.BARBT30M	0.3421
24 Apr 2025, 8:00:00 pm	.BARBT30M	0.3375
24 Apr 2025, 4:00:00 pm	.BARBT30M	0.3417
24 Apr 2025, 12:00:00 pm	.BARBT30M	0.3324
24 Apr 2025, 8:00:00 am	.BARBT30M	0.3302
24 Apr 2025, 4:00:00 am	.BARBT30M	0.3339
24 Apr 2025, 12:00:00 am	.BARBT30M	0.3384
23 Apr 2025, 8:00:00 pm	.BARBT30M	0.3345
23 Apr 2025, 4:00:00 pm	.BARBT30M	0.3270
23 Apr 2025, 12:00:00 pm	.BARBT30M	0.3302
23 Apr 2025, 8:00:00 am	.BARBT30M	0.3263
23 Apr 2025, 4:00:00 am	.BARBT30M	0.3291
23 Apr 2025, 12:00:00 am	.BARBT30M	0.3225
22 Apr 2025, 8:00:00 pm	.BARBT30M	0.3114
22 Apr 2025, 4:00:00 pm	.BARBT30M	0.3093
22 Apr 2025, 12:00:00 pm	.BARBT30M	0.3025
22 Apr 2025, 8:00:00 am	.BARBT30M	0.3005
22 Apr 2025, 4:00:00 am	.BARBT30M	0.2987
22 Apr 2025, 12:00:00 am	.BARBT30M	0.2984
21 Apr 2025, 8:00:00 pm	.BARBT30M	0.3034
21 Apr 2025, 4:00:00 pm	.BARBT30M	0.3115
21 Apr 2025, 12:00:00 pm	.BARBT30M	0.3113
21 Apr 2025, 8:00:00 am	.BARBT30M	0.3128
21 Apr 2025, 4:00:00 am	.BARBT30M	0.3087
21 Apr 2025, 12:00:00 am	.BARBT30M	0.3042
20 Apr 2025, 8:00:00 pm	.BARBT30M	0.3030
20 Apr 2025, 4:00:00 pm	.BARBT30M	0.2981
20 Apr 2025, 12:00:00 pm	.BARBT30M	0.2973
20 Apr 2025, 8:00:00 am	.BARBT30M	0.3013
20 Apr 2025, 4:00:00 am	.BARBT30M	0.3039
20 Apr 2025, 12:00:00 am	.BARBT30M	0.3008
19 Apr 2025, 8:00:00 pm	.BARBT30M	0.3033
19 Apr 2025, 4:00:00 pm	.BARBT30M	0.2957
19 Apr 2025, 12:00:00 pm	.BARBT30M	0.2923
19 Apr 2025, 8:00:00 am	.BARBT30M	0.2949
19 Apr 2025, 4:00:00 am	.BARBT30M	0.2948
19 Apr 2025, 12:00:00 am	.BARBT30M	0.2906
18 Apr 2025, 8:00:00 pm	.BARBT30M	0.2917
18 Apr 2025, 4:00:00 pm	.BARBT30M	0.2881
18 Apr 2025, 12:00:00 pm	.BARBT30M	0.2885
18 Apr 2025, 8:00:00 am	.BARBT30M	0.2888
18 Apr 2025, 4:00:00 am	.BARBT30M	0.2839
18 Apr 2025, 12:00:00 am	.BARBT30M	0.2825
17 Apr 2025, 8:00:00 pm	.BARBT30M	0.2820
17 Apr 2025, 4:00:00 pm	.BARBT30M	0.2806
17 Apr 2025, 12:00:00 pm	.BARBT30M	0.2819
17 Apr 2025, 8:00:00 am	.BARBT30M	0.2835
17 Apr 2025, 4:00:00 am	.BARBT30M	0.2774
17 Apr 2025, 12:00:00 am	.BARBT30M	0.2786
16 Apr 2025, 8:00:00 pm	.BARBT30M	0.2791
16 Apr 2025, 4:00:00 pm	.BARBT30M	0.2810
16 Apr 2025, 12:00:00 pm	.BARBT30M	0.2789
16 Apr 2025, 8:00:00 am	.BARBT30M	0.2766

This is the 30-minute time-weighted average price of .BARBT on BitMEX Index, printed every 4 hours.

The last 100 measurements are available here. More results can be retrieved from the API.

Composite Index Breakdown

Time	Reference	Source Price	Conversion Index	Conversion Index Price	Weight	Last Price
2 May 2025, 11:08:15 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:08:15 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:08:15 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:08:15 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:08:15 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:08:15 pm	GDAX	-	.BUSDT		7.07%	0.33
2 May 2025, 11:08:10 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:08:10 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:08:10 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:08:10 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:08:10 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:08:10 pm	GDAX	-	.BUSDT		7.07%	0.33
2 May 2025, 11:08:05 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:08:05 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:08:05 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:08:05 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:08:05 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:08:05 pm	GDAX	0.33	.BUSDT	1.00036	7.07%	0.33
2 May 2025, 11:08:00 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:08:00 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:08:00 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:08:00 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:08:00 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:08:00 pm	GDAX	0.33	.BUSDT	1.00037	7.07%	0.33
2 May 2025, 11:07:55 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:55 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:55 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:55 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:55 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:55 pm	GDAX	0.33	.BUSDT	1.00037	7.07%	0.33
2 May 2025, 11:07:50 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:45 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:50 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:45 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:45 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:50 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:50 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:45 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:50 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:45 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:45 pm	GDAX	0.33	.BUSDT	1.00037	7.07%	0.33
2 May 2025, 11:07:50 pm	GDAX	0.33	.BUSDT	1.00037	7.07%	0.33
2 May 2025, 11:07:40 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:40 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:40 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:40 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:40 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:40 pm	GDAX	0.33	.BUSDT	1.00037	7.07%	0.33
2 May 2025, 11:07:35 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:35 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:35 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:35 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:35 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:35 pm	GDAX	0.33	.BUSDT	1.00037	7.07%	0.33
2 May 2025, 11:07:30 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:30 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:30 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:30 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:30 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:30 pm	GDAX	0.33	.BUSDT	1.00037	7.07%	0.33
2 May 2025, 11:07:25 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:25 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:25 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:25 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:25 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:25 pm	GDAX	0.33	.BUSDT	1.00037	7.07%	0.33
2 May 2025, 11:07:20 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:20 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:20 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:20 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:20 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:20 pm	GDAX	0.33	.BUSDT	1.00036	7.07%	0.33
2 May 2025, 11:07:15 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:10 pm	OKEX	-	Not Required		10.02%	0.33
2 May 2025, 11:07:15 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:10 pm	GTIO	-	Not Required		4.34%	0.33
2 May 2025, 11:07:10 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:15 pm	HUOB	-	Not Required		6.69%	0.33
2 May 2025, 11:07:15 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:10 pm	BYBT	-	Not Required		14.49%	0.33
2 May 2025, 11:07:15 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:10 pm	BINC	-	Not Required		57.39%	0.33
2 May 2025, 11:07:10 pm	GDAX	0.33	.BUSDT	1.00037	7.07%	0.33
2 May 2025, 11:07:15 pm	GDAX	0.33	.BUSDT	1.00036	7.07%	0.33
2 May 2025, 11:07:05 pm	OKEX	-	Not Required		10.02%	0.33

This shows the breakdown of .BARBT into its constituent prices. The last 100 measurements are available here. More results can be retrieved from the API.

Please note BitMEX does not support old browsers.We recommend upgrading to the latest version of Opera, Firefox, or Chrome.

.BARBT30M: 30-minutes Arbitrum/Tether BitMEX Index TWAP

.BARBT30M Index Details

.BARBT30M Index Historical Values

Index Values

Composite Index Breakdown

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