Reports · Methodology 2.1
C100 monthly report: September 2026
Backtested — before index launch. The index went live on Nov 1, 2026; this month applies the same rules to the market data of the time.
- C100
- +18.30%
- Bitcoin
- +6.37%
- Ethereum
- +8.80%
- C100 year to date
- +1.51%
C100 closed the month at 8,913.69 (Oct 1, 2026, 00:00 UTC), −10.8% from its all-time high of 9,996.45 (Nov 20, 2025).
Summary
These figures are a backtest: the index went live on November 1, 2026, and earlier values apply the same rules to the market data of the time.
The C100 rose 18.3% in September 2026, outperforming Bitcoin (+6.4%) by 11.9 pp and outperforming Ethereum (+8.8%) by 9.5 pp.
The equal-weight C100-EW rose 31.7%, so the larger constituents did worse than the average constituent.
Layer 1 added most to the return (+9.42 pp) and Gaming & Metaverse detracted most (0.00 pp).
Among the constituents at month end, Quant (QNT) had the largest gain (+368.9%) and Audiera (BEAT) the largest loss (−26.9%).
Year to date the index is up 1.5%; it ended September 10.8% below its all-time high of 9,996.45 (November 20, 2025).
At the reconstitution on October 5, 2026, weights were reset to target with one-way turnover of 3.5%. 6 assets were added and 6 removed.
After the review, the ten largest constituents made up 67.1% of the index and Bitcoin and Ethereum together 28.0%; 8 assets' weights were set by a cap rule.
September 2026: C100 vs Bitcoin and Ethereum
Returns
| Index or asset | September | Year to date |
|---|---|---|
| C100 | +18.30% | +1.51% |
| C100 Equal Weight | +31.70% | +4.62% |
| C25 | +16.72% | +1.33% |
| C100 ex-BTC | +19.73% | +1.75% |
| Bitcoin | +6.37% | −4.51% |
| Ethereum | +8.80% | −9.53% |
Best and weakest constituents
| Asset | Return | Contribution |
|---|---|---|
| Quant QNT | +368.86% | +0.72 pp |
| NEAR Protocol NEAR | +178.45% | +1.11 pp |
| Midnight NIGHT | +111.84% | +0.09 pp |
| Arbitrum ARB | +85.50% | +0.16 pp |
| Ethena ENA | +76.46% | +0.30 pp |
| Asset | Return | Contribution |
|---|---|---|
| Audiera BEAT | −26.87% | 0.00 pp |
| SPX6900 SPX | −19.84% | −0.03 pp |
| OFFICIAL TRUMP TRUMP | −15.39% | −0.03 pp |
| DeXe DEXE | −10.50% | −0.01 pp |
| MemeCore M | −4.94% | −0.04 pp |
Sectors
| Sector | Contribution | Weight start → end |
|---|---|---|
| Layer 1 | +9.42 pp | 61.09% → 59.65% |
| Privacy | +2.87 pp | 8.09% → 8.80% |
| Exchange | +0.90 pp | 7.83% → 7.54% |
| Payments | +0.58 pp | 7.43% → 6.77% |
| Memes | +0.67 pp | 6.04% → 6.03% |
| DeFi | +1.70 pp | 4.84% → 5.56% |
| Layer 2 | +0.52 pp | 1.83% → 1.97% |
| Oracles & Infra | +1.00 pp | 0.93% → 1.58% |
| Other | +0.35 pp | 1.10% → 1.18% |
| AI | +0.29 pp | 0.75% → 0.88% |
| Gaming & Metaverse | 0.00 pp | 0.07% → 0.05% |
Contributions are in percentage points of the C100 return and add up to it.
Reconstitution on Oct 5, 2026
One-way turnover 3.46%, 100 constituents. All rebalances
| Asset | Before | After | Cap |
|---|---|---|---|
| Bitcoin BTC | 13.47% | 14.01% | capped |
| MemeCore M | 0.54% | removed | |
| TRON TRX | 4.02% | 4.50% | capped |
| Ethereum ETH | 13.56% | 14.01% | capped |
| BNB BNB | 6.61% | 7.00% | capped |
| Hyperliquid HYPE | 4.14% | 4.50% | capped |
| Dogecoin DOGE | 3.69% | 3.35% | |
| XRP XRP | 6.68% | 7.00% | capped |
| Cardano ADA | 2.12% | 1.89% | |
| Monero XMR | 2.40% | 2.19% | |
| Zcash ZEC | 4.33% | 4.50% | capped |
| Stellar XLM | 1.74% | 1.59% | |
| Solana SOL | 6.11% | 5.97% | capped |
| 币安人生 币安人生 | 0.12% | removed | |
| Raydium RAY | — | 0.12% |
Added (6)
- Raydium RAYentered at eligible rank #71 (newcomers need the top 90)
- Plasma XPLentered at eligible rank #77 (newcomers need the top 90)
- Pendle PENDLEentered at eligible rank #78 (newcomers need the top 90)
- Starknet STRKentered at eligible rank #80 (newcomers need the top 90)
- Pieverse PIEVERSEentered at eligible rank #82 (newcomers need the top 90)
- Falcon Finance FFentered at eligible rank #86 (newcomers need the top 90)
Removed (6)
- MemeCore Mno longer eligible: 30-day median volume below $5M
- 币安人生 币安人生no longer eligible: 30-day median volume below $5M
- DoubleZero 2Zno longer eligible: outside the top 150 after exclusions
- DeXe DEXEeligible rank #135, outside the top 120 that constituents need to stay
- Humanity Hno longer eligible: outside the top 150 after exclusions
- Audiera BEATno longer eligible: not in CoinMarketCap's ranked listing
Concentration
- Top 10 weight
- 67.06%
- Bitcoin + Ethereum
- 28.02%
- Weights set by a cap
- 8
- Constituents
- 100
Target weights after the review.