OKX released its 47th proof-of-reserves report, confirming 139,865 Bitcoin in customer account assets as of Sept. 8. The figure marks a 4.07 percent increase from the exchange's Aug. 11 report, when customer Bitcoin holdings totaled 134,399 BTC.
User Bitcoin balances grew by 5,466 BTC between the two reporting periods. OKX controls 153,151 BTC across its wallets—146,359 held directly by the exchange and 6,792 through third-party custody—backing those customer balances at a 109 percent reserve ratio, down from 111 percent in August.
Ether user holdings climbed from 1,725,703 ETH in August to 1,785,866 ETH by Sept. 8, a 3.49 percent increase. OKX reported 1,796,024 ETH in wallet assets—1,716,056 under exchange custody and 79,968 through third-party providers—maintaining a 101 percent reserve ratio.
USDT customer balances posted the sharpest gain, rising from 8.118 billion tokens in August to 8.493 billion in September, a 4.62 percent jump. OKX controls 8.953 billion USDT in wallet assets, comprising 8.818 billion in exchange wallets and 135.6 million through third-party custody. The USDT reserve ratio stands at 105 percent, down from 106 percent despite increased customer holdings.
Other assets on the reserve page maintained coverage at or above 100 percent. USDC showed a 100 percent reserve ratio with 1.913 billion tokens in customer account assets.
OKX calculates reserve ratios by comparing assets under its control against user account balances. A ratio above 100 percent indicates wallet holdings exceed customer balances. Third-party custody holdings are verified directly through outside custodians, as stated on the exchange's reserve page.
The current report lists $27.4 billion in primary assets backing customer funds. Sustained growth in Bitcoin balances on a major venue like OKX reflects continued on-platform accumulation, a signal institutional and retail holders are stacking through the exchange.
