The Bitwise Bitcoin ETF (BITB) saw a zero delta Thursday morning, adding 0.00 BTC ($0.00 computed flow). Holdings held flat at 38,354.79 BTC, maintaining an AUM of $2.96 billion according to its latest public filing. This keeps the fund just below its peak BITB holdings of 38,354.79 BTC back on Wednesday, September 9. A quiet Thursday shows how flat flows can still signal a steady investor pile.
XOOMAR Pulse Intelligence
Spot BTC & ETH ETF Flows & Holdings
Thursday morning’s zero delta
The fund printed a coin delta of 0.00 BTC on Thursday, September 10. This zero flow session follows a $14.39 million inflow the day before.
These quiet mornings happen. The largest positive flow for BITB in this stored window was a massive $2.95 billion on Friday, August 21. That makes Thursday's nil print less dramatic. A week ago, a pattern of consecutive zeroes also showed the kind of lulls you get in activity.
BITB in three phases
A read of BITB's 121‑session tape reveals three distinct regimes over the window. It began with an accumulation phase, building up to last Wednesday's peak of 38,354.79 BTC. A dramatic washout followed, centered around the largest‑magnitude flow of $2.95 billion. That was also the largest positive. Since that event, the fund has recovered, culminating in the current holdings and an AUM of $2.96 billion.
A few key numbers stand out. The net change for BITB from the first stored row to the last is 38,204.79 BTC. Over the entire tape, the summed stored flow for BITB totals $15.07 billion.
| Date | Weekday | Holdings | Flow | AUM |
|---|---|---|---|---|
| 2024-01-11 | Thursday | 150.00 BTC | $7.80 million | $93.60 million |
| ... (119 intervening rows) | ... | ... | ... | ... |
| 2026-09-09 | Wednesday | 38,354.79 BTC | $14.39 million | $2.99 billion |
| 2026-09-10 | Thursday | 38,354.79 BTC | $0.00 | $2.96 billion |
ETHW’s silent week and recent inflows
Bitwise's Ethereum ETF (ETHW) had been silent. Its stored tape shows it ran a streak of seven consecutive sessions with $0.00 flow, from Monday, August 31 through Monday, September 7, inclusive. That stretch of zero prints ended on Tuesday, September 1, with a $3.58 million inflow.
ETHW's holdings now stand at 112,053.33 ETH. Its AUM is marked at $274.81 million. The fund recorded no flow on Thursday, maintaining its position.
The scale of the BlackRock giants
While BITB has a long flow history, the iShares funds from BlackRock present a different picture. IBIT and ETHA each have a single, massive holdings snapshot dated August 17 with no prior stored row, meaning computed flow is not stored. Their scales are multiples of the Bitwise funds.
| Ticker | Issuer | As-of date | Holdings | Computed flow | AUM |
|---|---|---|---|---|---|
| IBIT | iShares (BlackRock) | 2026-09-09 | 785,522.06 BTC | -$19.19 million | $60.51 billion |
| BITB | Bitwise | 2026-09-10 | 38,354.79 BTC | $0.00 | $2.96 billion |
| ETHA | iShares (BlackRock) | 2026-09-09 | 3,531,789.46 ETH | $9.62 million | $8.66 billion |
| ETHW | Bitwise | 2026-09-10 | 112,053.33 ETH | $0.00 | $274.81 million |
IBIT's holdings are 20.5 times larger than BITB's. ETHA's holdings are 31.5 times larger than ETHW's. Combined, the Bitcoin represented by these four funds totals 823,876.85 BTC and 3,643,842.79 ETH.
How computed flow is made
XOOMAR's computed flow is a derived signal.
Holdings come straight from issuer public files. The date on each row is the issuer as-of date. The computed flow is the change in holdings versus the previous stored row for that ticker, multiplied by the XOOMAR mark at ingest time. A first snapshot has no previous row, so flow is absent. AUM is holdings times the same XOOMAR mark.
This dataset cannot predict whether an add was due to creations, redemptions, or a pricing artifact. The tape only shows the delta holdings multiplied by the mark.
Where Bitcoin and Ethereum traded at the same moment
At the same moment ETF holdings were recorded, perpetual futures were trading. Keep in mind, these are two separate Pulse tapes. No causation is implied. Here are the marks and funding rates.
| Asset | Exchange | Mark | Funding rate | Open interest notional |
|---|---|---|---|---|
| BTC | binance | $77,032.22 | 0.00005747 | not available |
| BTC | bybit | $77,034.40 | 0.00008398 | $4.45 billion |
| ETH | binance | $2,452.74 | 0.00002403 | not available |
| ETH | bybit | $2,452.58 | 0.00000867 | $1.88 billion |
This context shows the pricing used for AUM and flow calculations, pulled from a related market Pulse.
What a second IBIT or ETHA file would unlock
Daily flow for IBIT and ETHA isn't in the dataset. That's the key unknown.
Until BlackRock publishes a second snapshot, computed flow will stay a blank column. Once that occurs, the flow engine will have a reference point. It'll turn the giants from static monoliths into moving parts with daily velocity.
This dataset, along with its API, only tracks BITB, ETHW, IBIT, and ETHA within the broader Crypto ETF Flows data hub.
It's a spotlight on a corner of the market, waiting for its next move.
Primary Sources & Disclosures
Disclaimer: Content on XOOMAR is produced using AI-assisted research, drafting, and verification workflows and is intended for informational and educational purposes only. It does not constitute financial, investment, legal, tax, medical, or professional advice of any kind. All analysis reflects available information at the time of publication and may not be current. Verify information independently and consult qualified professionals before making decisions. Editorial policy
Written by
XOOMAR Insights Team
Research and Editorial Desk
The XOOMAR Insights Team pairs automated research with human editorial judgment. We track hundreds of sources across technology, fintech, trading, SaaS, and cybersecurity, cross-check the facts, and explain what happened, why it matters, and what to watch next. We do not just rewrite headlines. Every article is fact-checked and scored for reliability before it goes live, and we link back to the original sources so you can verify anything yourself.
