CMBI Bitcoin London Index
CMBIBTCL
The CMBI Bitcoin London Index is designed to measure the performance an investor would expect from purchasing and holding Bitcoin.
Return
$115,170.13
as of most recent London market close
24hr return
+0.66%
year to date
+20.73%
Performance
| Time | Returns | Range |
|---|---|---|
| 1D |
+0.66%
| $114,416.19 - $115,170.13 |
| 7D |
+3.81%
| $110,871.30 - $115,170.13 |
| 1M |
-5.18%
| $108,430.29 - $121,461.27 |
| 3M |
+9.68%
| $99,721.45 - $121,461.27 |
| 1Y |
+98.74%
| $57,790.85 - $121,461.27 |
| 2Y |
+339.36%
| $26,127.14 - $121,461.27 |
| MTD |
+6.22%
| $108,430.29 - $115,170.13 |
| QTD |
+7.44%
| $106,275.07 - $121,461.27 |
| YTD |
+20.73%
| $77,335.69 - $121,461.27 |
| Q2:25 |
+28.69%
| $77,335.69 - $110,926.72 |
| Q1:25 |
-12.68%
| $80,353.12 - $106,019.04 |
| Q4:24 |
+49.52%
| $60,347.93 - $106,381.06 |
| Q3:24 |
+3.74%
| $53,749.92 - $69,000.97 |
Volatility
| 3 MONTHS | 29.85% |
|---|---|
| 6 MONTHS | 32.43% |
| 1 YEAR | 40.57% |
| 2 YEARS | 43.16% |
Sharpe
| 1 YEAR | 1.786 |
|---|---|
| 2 YEARS | 1.815 |
| 5 YEARS | 1.052 |
Sortino
| 1 YEAR | 2.802 |
|---|---|
| 2 YEARS | 2.847 |
| 5 YEARS | 1.580 |
About The Index
The Coin Metrics Bletchley Index (CMBI) Bitcoin is an institutionally designed cryptoasset benchmark that accurately and reliably represents a real-time market aggregate USD value for Bitcoin.
The CMBI Bitcoin London Index aggregates data from the major global BTC/USD markets that conform to the Coin Metrics Market Selection Framework. In doing so, Coin Metrics produces the most transparent, robust and manipulation resistant aggregate levels for customers and markets.
Index levels are calculated and disseminated:
- Real-time (every 1 or 15 seconds): Utilizing the most recent trade data from constituent markets and applying an inverse price variance and 'volume-weighted' median methodology to generate the most timely and accurate pricing.
- Hourly/End-of-Day: Observing trade data from constituent markets over a 61 minute period and applying a time-weighted volume-weighted median to obtain robust and manipulation resistant pricing.
Key Information
| Name | CMBI Bitcoin London Index |
|---|---|
| Base date | 2010-07-18 |
| Base value | $0.0808 |
| Constituents | Bitcoin Only |
| Base currency | USD |
| Bloomberg ticker | CMBIBTCL |
| Administrator | Coin Metrics |
Quick Links
Historical Data
| Date | Open | High | Low | Close | |
|---|---|---|---|---|---|
| Sep 11, 2025 | $114,496.00 | $116,364.00 | $114,035.78 | $115,312.94 | |
| Sep 10, 2025 | $113,950.00 | $114,727.34 | $113,183.90 | $114,496.00 | |
| Sep 9, 2025 | $111,764.15 | $114,347.99 | $110,777.31 | $113,886.00 | |
| Sep 8, 2025 | $112,646.80 | $113,292.80 | $111,132.00 | $111,750.74 | |
| Sep 7, 2025 | $111,141.95 | $112,764.00 | $110,626.05 | $112,622.00 | |
| Sep 6, 2025 | $110,834.00 | $111,403.22 | $110,008.98 | $111,142.07 | |
| Sep 5, 2025 | $110,573.00 | $111,703.00 | $110,229.36 | $110,822.00 | |
| Sep 4, 2025 | $109,872.00 | $113,354.01 | $109,341.21 | $110,561.00 | |
| Sep 3, 2025 | $112,286.23 | $112,596.01 | $109,733.70 | $109,870.97 | |
| Sep 2, 2025 | $111,371.00 | $112,523.00 | $110,202.95 | $112,293.93 | |
| Sep 1, 2025 | $109,172.00 | $111,741.99 | $107,481.79 | $111,354.00 | |
| Aug 31, 2025 | $108,465.00 | $109,904.11 | $107,270.30 | $109,152.05 | |
| Aug 30, 2025 | $108,663.95 | $109,501.99 | $108,200.20 | $108,465.00 | |
| Aug 29, 2025 | $108,202.00 | $108,861.78 | $107,384.86 | $108,671.81 | |
| Aug 28, 2025 | $113,175.99 | $113,268.01 | $108,104.00 | $108,124.01 | |
| Aug 27, 2025 | $111,852.02 | $113,480.00 | $110,890.00 | $113,177.99 | |
| Aug 26, 2025 | $110,371.99 | $112,640.91 | $109,454.33 | $111,855.99 | |
| Aug 25, 2025 | $112,257.40 | $112,932.49 | $108,762.00 | $110,361.22 | |
| Aug 24, 2025 | $114,483.00 | $114,852.39 | $110,565.69 | $112,286.00 | |
| Aug 23, 2025 | $114,581.87 | $115,626.00 | $114,333.00 | $114,508.00 | |
| Aug 22, 2025 | $115,820.00 | $117,420.00 | $114,588.88 | $114,588.88 | |
| Aug 21, 2025 | $113,269.60 | $116,103.90 | $111,676.10 | $115,876.00 | |
| Aug 20, 2025 | $113,456.47 | $114,807.96 | $112,916.00 | $113,249.55 | |
| Aug 19, 2025 | $113,886.29 | $114,185.68 | $112,373.00 | $113,470.00 | |
| Aug 18, 2025 | $115,691.65 | $117,044.45 | $113,778.25 | $113,906.99 |
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