OCB — Quality Rating
CUMBU Quality Rating
China Asset Management · Class B share of ChinaAMC's USD digital money market fund.
CUMBU (China Asset Management) scores 62/100 on OnChain Benchmark's Verified Capital Quality Rating — Limited band — across four dimensions: disclosure quality 18/25, redemption liquidity 17/25, structural trust 14/25, and holder concentration withheld (not measurable to ground truth) (methodology v1.6, as of Sep 24, 2026).
Verified Capital Quality Rating
OCB — 01
CUMBU across four dimensions
Each dimension is scored out of 25, then multiplied by its weight and summed into the /100 composite — so the four dimension scores are a weighted, not a plain, sum. Last scored Sep 24, 2026 on methodology v1.6.
| Dimension | Score | Weight |
|---|---|---|
| Disclosure Quality | 18 / 25 | ×0.4 |
| Redemption Liquidity | 17 / 25 | ×0.9 |
| Structural Trust | 14 / 25 | ×1.4 |
| Holder Concentration | Not measured | ×1.3 |
| CompositeΣ (score × weight) | 62 / 100 |
Holder Concentration is withheld for this instrument. Its holder base is too large or too widely distributed to measure to ground truth, so the concentration figure is not published. The composite reflects the three measured dimensions, renormalized.
OCB — 02
OCB Instrument
Outstanding supply
OCB — 03
OCB Instrument
Rating history
OCB — 04
Evidence behind the rating
A sample of the verified facts behind CUMBU's score. The full diligence trail is in the terminal.
- Disclosure Qualityattestation source
ChinaAMC publishes a daily net asset value history for this share class through its own fund distribution channel. The fund's auditor is KPMG.
Verified Sep 14, 2026· ChinaAMC published NAV history. - Disclosure Qualitycontract address
Contract address verified on Ethereum: 0x1aaa3339572cf88dc487dbeef263f5aabc5f3bbf (primary deployment)
Confirmed active onchain.
Verified Aug 10, 2026· instrument_deployments registry — chain_id 1 - Holder Concentrationholder concentration snapshot
Top-10 holders control 100.00% of supply (after excluding protocol-controlled addresses). Concentration track: institutional_direct.
Holder snapshot refreshes on a rolling basis and may be up to 36 hours old.
Verified Aug 10, 2026· Verified against primary sources
OCB — 05
Key facts
- Issuer
- China Asset Management
- Asset class
- Tokenized U.S. Treasuries
- Tracked supply
- $3.99Kas of Sep 24, 2026
- Methodology
- v1.6
- Last scored
- Sep 24, 2026
- Rubric
- Verified Capital Quality Rating
Chain
Cite this rating
Reference CUMBU's rating
Copy a ready-made citation. Every rating carries its methodology version and a stable permalink, so a citation stays accurate after a later rescoring run.
OnChain Benchmark (2026). CUMBU Quality Rating: 62/100 (Limited band), as of Sep 24, 2026. Methodology v1.6. https://onchainbenchmark.com/instruments/cumbu
OnChain Benchmark (2026) 'CUMBU Quality Rating', OnChain Benchmark, Limited band, 62/100, methodology v1.6. Available at: https://onchainbenchmark.com/instruments/cumbu (Accessed: Sep 24, 2026).
@misc{ocb_cumbu_2026,
author = {{OnChain Benchmark}},
title = {{CUMBU Quality Rating}},
year = {2026},
note = {62/100, Limited band, methodology v1.6},
url = {https://onchainbenchmark.com/instruments/cumbu}
}Or pull the data: CUMBU rating (CSV)
The interactive terminal shows every verified fact behind CUMBU's rating — the dimension-by-dimension breakdown, scoring history, outstanding supply, anomalies, and the complete evidence trail with sources.