CMBI Bitcoin Benchmark CMBIBTC
Coin Metrics Bletchley Index (CMBI) Bitcoin Benchmark
An institutionally designed benchmark representing the real-time USD market value of Bitcoin.
Return
Performance
| Time | Returns | Range |
|---|---|---|
| 1D |
+1.23%
| $76,791.38 - $77,737.05 |
| 7D |
-3.58%
| $76,554.12 - $81,278.30 |
| 1M |
-9.01%
| $76,554.12 - $85,711.08 |
| 3M |
+19.87%
| $62,864.11 - $86,482.20 |
| 1Y |
-27.11%
| $58,639.51 - $106,643.57 |
| 2Y |
+13.04%
| $58,639.51 - $125,555.85 |
| MTD |
+0.37%
| $76,791.38 - $77,742.97 |
| QTD |
-7.10%
| $76,554.12 - $85,711.08 |
| YTD |
-10.98%
| $58,639.51 - $97,552.38 |
| Q3:26 |
+42.70%
| $58,639.51 - $86,482.20 |
| Q2:26 |
-13.52%
| $58,639.51 - $81,942.14 |
| Q1:26 |
-22.35%
| $63,531.10 - $97,552.38 |
| Q4:25 |
-23.55%
| $84,114.17 - $125,555.85 |
Volatility
| 3 MONTHS | 38.74% |
|---|---|
| 6 MONTHS | 37.79% |
| 1 YEAR | 45.65% |
| 2 YEARS | 45.49% |
Sharpe
| 1 YEAR | -0.541 |
|---|---|
| 2 YEARS | 0.275 |
| 5 YEARS | 0.272 |
Sortino
| 1 YEAR | -0.752 |
|---|---|
| 2 YEARS | 0.402 |
| 5 YEARS | 0.390 |
ABOUT THE BENCHMARK
The Coin Metrics Bletchley Index (CMBI) Bitcoin Benchmark is an institutionally designed cryptoasset benchmark that accurately and reliably represents the real-time aggregate USD market value for Bitcoin.
The CMBI Bitcoin Benchmark aggregates data from major global BTC markets selected through the Coin Metrics Trusted Exchange Framework and Candidate Market Guidelines. Through this methodology, Coin Metrics produces transparent, robust, and manipulation-resistant aggregate pricing for institutional participants.
Index levels are calculated and disseminated at multiple frequencies to support trading, portfolio valuation, benchmarking, and market analysis use cases.
Key Features
- Institutional-grade benchmark methodology
- Transparent candidate market guidelines
- Real-time and historical dissemination
- Manipulation-resistant aggregate pricing
- Governance aligned with industry best practices
Key Information
| Name | CMBI Bitcoin Benchmark |
|---|---|
| Base date | 2010-07-18 |
| Base value | $0.0808 |
| Constituents | Bitcoin Only |
| Base currency | USD |
| Bloomberg ticker | CMBIBTC |
| Administrator | Coin Metrics |
Quick Links
| Methodology |
| Fork Policy |
| Most Recent Factsheet |
Historical Data
| Date | Open | High | Low | Close |
|---|---|---|---|---|
| Nov 2, 2026 | $76,641.36 | $77,854.25 | $76,276.97 | $77,766.69 |
| Nov 1, 2026 | $77,792.36 | $78,710.04 | $76,564.70 | $76,608.00 |
| Oct 31, 2026 | $77,428.18 | $78,135.20 | $77,308.43 | $77,795.80 |
| Oct 30, 2026 | $76,766.58 | $77,631.56 | $76,493.33 | $77,428.19 |
| Oct 29, 2026 | $80,743.29 | $80,743.29 | $76,170.30 | $76,782.99 |
| Oct 28, 2026 | $81,520.26 | $81,874.40 | $79,607.04 | $80,737.00 |
| Oct 27, 2026 | $80,706.77 | $81,683.00 | $80,302.55 | $81,498.42 |
| Oct 26, 2026 | $79,887.60 | $80,717.57 | $79,384.40 | $80,707.56 |
| Oct 25, 2026 | $80,462.40 | $80,702.34 | $79,300.00 | $79,901.20 |
| Oct 24, 2026 | $80,379.96 | $80,925.00 | $80,000.01 | $80,462.50 |
| Oct 23, 2026 | $81,184.34 | $81,399.99 | $79,173.43 | $80,378.18 |
| Oct 22, 2026 | $81,389.30 | $81,945.27 | $81,023.13 | $81,173.11 |
| Oct 21, 2026 | $84,447.22 | $84,781.30 | $80,829.20 | $81,387.68 |
| Oct 20, 2026 | $82,503.62 | $84,828.50 | $82,423.07 | $84,472.19 |
| Oct 19, 2026 | $81,795.83 | $83,316.19 | $81,121.00 | $82,475.55 |
| Oct 18, 2026 | $80,785.77 | $83,040.15 | $80,617.73 | $81,753.79 |
| Oct 17, 2026 | $81,498.54 | $82,167.97 | $80,706.42 | $80,798.72 |
| Oct 16, 2026 | $81,483.20 | $81,717.03 | $81,091.80 | $81,498.06 |
| Oct 15, 2026 | $82,295.67 | $82,812.28 | $80,719.02 | $81,480.36 |
| Oct 14, 2026 | $81,725.90 | $82,529.70 | $79,721.50 | $82,288.36 |
| Oct 13, 2026 | $83,207.72 | $84,051.01 | $81,427.50 | $81,701.31 |
| Oct 12, 2026 | $82,760.24 | $84,065.16 | $80,968.62 | $83,213.48 |
| Oct 11, 2026 | $83,594.43 | $84,261.62 | $82,231.19 | $82,759.02 |
| Oct 10, 2026 | $83,011.08 | $84,105.49 | $82,724.81 | $83,576.30 |
| Oct 9, 2026 | $82,247.60 | $83,092.29 | $82,242.79 | $83,001.77 |
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