According to timechainindex.com stats, Coinbase now custodies 3,002,996 bitcoin—valued around $347 billion—up from 2,919,643 BTC 57 days ago, a net gain of 83,353 BTC since July 26.
Under Management: Coinbase Adds 83,353 BTC Since July 26, Pushing Stack to $347B
Data collected from timechainindex.com and compared to a report published 57 days ago, exchange-traded funds or exchange-traded products (ETFs/ETPs) climbed to 1,167,616 BTC, a gain of 22,940 BTC. Blackrock’s IBIT leads at 765,293 BTC, followed by Grayscale’s cache at 47,468 BTC and Bitwise’s BITB at 41,008 BTC.
The estimated figures show Wisdomtree sits with 12,273 BTC; 21shares’ ABTC holds 8,555 BTC, with smaller lines at Grayscale’s GDLC (5,722 BTC), Franklin Templeton’s EZBC (5,703 BTC), 21shares’ CBTC (3,436 BTC), 3iq’s BTCQ (2,385 BTC), and micro allocations to 21shares’ HODL (1,051 BTC), HODLX (224 BTC), MOON (145 BTC), and HODLW (40 BTC). This sleeve is broadly higher, with Blackrock‘s IBIT visibly larger than late July.
Source: timechainindex.com
The onchain data claims centralized exchange (CEX) funds, held in custody by Coinbase, collectively hold 1,019,712 BTC, down 25,501 BTC from 1,045,213 BTC in late July. Bitvavo carries 29,254 BTC, Coinsquare 5,941 BTC, and Newton 1,376 BTC. Coinbase’s in-house exchange reserves remain the dominant share of this bucket, but the category overall is lower versus the prior snapshot 57 days ago.
Timechainindex.com’s figures say that company balances today total 340,083 BTC, up 17,935 BTC from 322,148 BTC in July. The visible constituents include Tesla at 11,509 BTC, SpaceX at 8,285 BTC, and Sequans at 3,205 BTC. The corporate sleeve is higher in aggregate versus late July.
Custodians register 266,807 BTC on the chart. Abraxas Capital appears at 24,530 BTC inside this group. Compared with our prior reporting in July that split out Prime custody and Prime accounts, the presentation has been consolidated under a single “Custodians” label from this perspective.
Over-the-counter (OTC) desk balances stand at 101,406 BTC, an increase from 81,334 BTC in July. Individuals are listed at 26,765 BTC (described as “Individual X 05 · Xapo Bank Origin”). Bitcoin miners collectively hold 20,871 BTC, up from 18,345 BTC; among those shown are Cleanspark Inc. with 7,832 BTC, Bitfarms with 1,097 BTC, and American Bitcoin with 84 BTC.
Taken together, the statistics gathered from timechainindex.com show ETF/ETP holdings expanding, CEX balances easing, corporates edging higher, OTC inventory growing, and miner balances ticking up a hair—all contributing to a Coinbase total of 3,002,996 bitcoin worth about $347 billion as of Sunday, Sept. 21, 2025.
