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Reports · Methodology 2.1

C100 monthly report: June 2025

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
−3.16%
Bitcoin
+2.41%
Ethereum
−1.66%
C100 year to date
−21.21%

C100 closed the month at 10,299.17 (Jul 1, 2025, 00:00 UTC), at its all-time high.

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 fell 3.2% in June 2025, underperforming Bitcoin (+2.4%) by 5.6 pp and underperforming Ethereum (−1.7%) by 1.5 pp.

The equal-weight C100-EW fell 7.2%, so the larger constituents did better than the average constituent.

Payments added most to the return (+0.20 pp) and Layer 1 detracted most (−1.20 pp).

Among the constituents at month end, Kaia (KAIA) had the largest gain (+51.7%) and DeXe (DEXE) the largest loss (−47.0%).

Year to date the index is down 21.2% and ended June at an all-time high of 10,299.17.

At the reconstitution on July 7, 2025, weights were reset to target with one-way turnover of 3.6%. 8 assets were added and 8 removed.

After the review, the ten largest constituents made up 65.4% of the index and Bitcoin and Ethereum together 27.9%; 7 assets' weights were set by a cap rule.

June 2025: C100 vs Bitcoin and Ethereum

Returns

Monthly and year-to-date returns
Index or assetJuneYear to date
C100−3.16%−21.21%
C100 Equal Weight−7.25%−41.51%
C25−2.16%−19.28%
C100 ex-BTC−3.58%−25.18%
Bitcoin+2.41%+14.75%
Ethereum−1.66%−25.34%

Best and weakest constituents

Largest gains (price return; contribution to the C100 return)
AssetReturnContribution
Kaia KAIA+51.68%+0.06 pp
Sei SEI+45.09%+0.09 pp
Jito JTO+34.34%+0.03 pp
Maker MKR+23.50%+0.06 pp
Bitcoin Cash BCH+22.07%+0.35 pp
Largest losses (price return; contribution to the C100 return)
AssetReturnContribution
DeXe DEXE−46.96%−0.10 pp
Celestia TIA−36.99%−0.10 pp
MANTRA OM−32.38%−0.02 pp
Helium HNT−28.68%−0.03 pp
Core CORE−26.45%−0.03 pp

Sectors

Sector contribution to the monthly return and sector weights
SectorContributionWeight start → end
Layer 1−1.20 pp66.14% → 65.29%
Exchange−0.27 pp8.71% → 9.00%
Payments+0.20 pp6.44% → 7.61%
Memes−0.94 pp7.60% → 6.97%
DeFi−0.18 pp3.77% → 3.91%
Layer 2−0.20 pp2.23% → 2.25%
Privacy−0.07 pp1.49% → 1.50%
AI−0.32 pp1.51% → 1.27%
Oracles & Infra−0.09 pp0.99% → 1.04%
Other−0.05 pp0.60% → 0.59%
Gaming & Metaverse−0.03 pp0.53% → 0.55%

Contributions are in percentage points of the C100 return and add up to it.

Reconstitution on Jul 7, 2025

One-way turnover 3.56%, 100 constituents. All rebalances

Largest weight changes: weight just before the review → target weight
AssetBeforeAfterCap
Bitcoin BTC14.79%13.93%capped
Pi PI—0.68%
Ethereum ETH14.49%13.93%capped
XRP XRP7.46%6.96%capped
Dogecoin DOGE4.10%4.50%capped
TRON TRX4.89%4.50%capped
OFFICIAL TRUMP TRUMP—0.33%
Sky SKY—0.31%
Maker MKR0.31%removed
BNB BNB7.18%6.96%capped
EOS EOS0.21%removed
Pudgy Penguins PENGU—0.19%
Data Network DATA—0.16%
Sui SUI1.78%1.93%
Maple Finance SYRUP—0.13%

Added (8)

Removed (8)

  • Maker MKRno longer eligible: not in CoinMarketCap's ranked listing
  • EOS EOSno longer eligible: not in CoinMarketCap's ranked listing
  • MultiversX EGLDeligible rank #114; dropped because more than 100 assets qualified
  • Arweave AReligible rank #125, outside the top 120 that constituents need to stay
  • Axie Infinity AXSeligible rank #120; dropped because more than 100 assets qualified
  • Chiliz CHZeligible rank #124, outside the top 120 that constituents need to stay
  • Wormhole Weligible rank #130, outside the top 120 that constituents need to stay
  • MANTRA OMno longer eligible: outside the top 150 after exclusions

Concentration

Top 10 weight
65.36%
Bitcoin + Ethereum
27.86%
Weights set by a cap
7
Constituents
100

Target weights after the review.

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