Bitwise's Bitcoin ETF added 54.26 BTC ($4.40 million computed flow) on Thursday, September 3, 2026, a gentle rebound after outflows erased the stack-of-coins heights the fund reached a week prior. The flow came from a holdings snapshot published by the issuer and converted into dollars using XOOMAR's marks, which trended higher earlier that summer. It's one print in months of data from the Bitwise and iShares shops tracked by this dataset. For context, the full dataset's ledger is Crypto ETF Flows, with details for developers at the ETF Flows API.
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Where BITB stands after its washout
The fund's run in this window falls into three distinct phases. The first was a steady climb toward its crowning moment: 38,295.25 BTC on Wednesday, August 28, 2026. That stands as the peak in this stored dataset. The second phase was a washout. It immediately posted a $50.41 million outflow on the following Monday, the largest outflow in the tape by magnitude. That event was stark, but the tape shows the $2.95 billion figure earlier in the window wasn't an outflow at all, it was a massive inflow on August 21, 2026, that marked the fund's explosive entry into the summer period. The third phase, a tentative recovery, appears to have started last week. Thursday's $4.40 million inflow ranks as the first positive move since the washout began and the smallest in a series of three consecutive daily adds. It's a small step after a giant stumble.
BITB's ledger on a single page
The sum of all stored BITB flows, excluding the first snapshot with no prior row, totals $15.03 billion. Its latest holdings of 37,866.41 BTC stand at $3.07 billion in assets under management. Here is a ledger comparison with its peer from BlackRock on the same date.
| Ticker | Issuer | As-of date | Holdings | Computed flow | AUM |
|---|---|---|---|---|---|
| BITB | Bitwise | 2026-09-03 | 37,866.41 BTC | $4.40 million | $3.07 billion |
| IBIT | iShares (BlackRock) | 2026-09-02 | 778,729.91 BTC | $121.21 million | $63.15 billion |
The scale gap is stark. BlackRock's fund holds more than 20 times the Bitcoin of the Bitwise fund. Combined, they control 816,596.33 BTC. The snapshot nature of the IBIT and ETHA data means there's no stored daily flow before this snapshot. Their flows are present only because a previous file was pulled for them.
The quiet reprieve for the sophomore in ether
Bitwise's Ethereum ETF, ETHW, posted a similar non-event on Thursday, September 3. Its computed flow read $0.00. According to XOOMAR reading, this marked the second stored session in a row with exactly zero flow, tying for the longest such streak in the tape. It wasn't always this static. The last two positive moves were substantial for the fund's own scale: a $3.58 million inflow on Tuesday, September 1, preceded by a $2.30 million add on Monday, August 24. Now, it's quiet.
Two ledger entries from BlackRock's shop
The latest snapshot for BlackRock's shuttered funds, IBIT and ETHA, also dates from Wednesday, September 2. IBIT reported holdings of 778,729.91 BTC, while ETHA showed 3,476,223.60 ETH. ETHA stands precisely 31.0 times larger than its Bitwise counterpart. Together, the two giant Bitcoin ETFs and the two large Ethereum ETFs represent enormous institutional coffers. The combined Ether of ETHW and ETHA is 3,588,276.94 ETH. The lack of a daily flow field for IBIT and ETHA isn't a statement about their activity. It's a limit of the snapshot model.
Marks and coffers at the same hour
On Thursday, September 3, the marks used to compute ETF flow and AUM reflected broader market pricing. At the same time, perpetual futures showed Bitcoin trading around $81,078 and Ethereum at $2,494. The related tape for Funding Rates carries that context. This is two separate Pulse tapes timestamped together, not a causation.
How we know what moved
XOOMAR computes flow by comparing the latest holdings row from issuer public files against the previous stored row for the same ticker. It multiplies the coin delta by the XOOMAR mark at the time the data was ingested to produce a dollar figure. AUM is simply holdings multiplied by that same mark. A first snapshot with no prior row has no stored flow. This method shows net coin movement against a market price.
What the next set of filings will reveal
The next piece of this story will be the second holdings file for IBIT and ETHA, which would unlock a daily flow figure for those giants and show whether their massive stacks grew or shrank. Until then, the tape knows only their scale, not their momentum.
See the full ledger of BITB's every stored day
For a complete view of BITB's journey, including the washout and its subsequent steps, here is a segment of the chronological tape showing recent activity.
| Date | Holdings | Flow | AUM |
|---|---|---|---|
| 2026-08-24 Monday | 37,871.97 BTC | $9.40 million | $2.98 billion |
| 2026-08-25 Tuesday | 37,909.95 BTC | $2.99 million | $2.98 billion |
| 2026-08-26 Wednesday | 37,947.94 BTC | $2.99 million | $2.99 billion |
| 2026-08-27 Thursday | 38,023.91 BTC | $6.09 million | $3.05 billion |
| 2026-08-28 Friday | 38,295.25 BTC | $21.04 million | $2.97 billion |
| 2026-08-31 Monday | 37,654.91 BTC | -$50.41 million | $2.96 billion |
| 2026-09-01 Tuesday | 37,703.62 BTC | $3.76 million | $2.91 billion |
| 2026-09-02 Wednesday | 37,812.15 BTC | $8.36 million | $2.91 billion |
| 2026-09-03 Thursday | 37,866.41 BTC | $4.40 million | $3.07 billion |
The washout line, Monday, August 31, is a $50.41 million outflow. The fund's path forward is on the ledger.
Looking at the big picture, the total net change in BITB's holdings since its first stored row back in 2024 is an addition of 37,716.41 BTC. The $50.41 million outflow on August 31 stands as the largest negative flow in the dataset. In contrast, the $2.95 billion inflow from August 21, which rocketed the fund into its high-possession regime, remains the largest positive flow. The $4.40 million add on Thursday is just a footnote in a long history of much bigger prints, but it's the first step since the fund gave back more than 600 BTC in a single day.
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XOOMAR Insights Team
Research and Editorial Desk
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