ETF fund flows split: BTC sees consecutive net outflows—why is ETH pulling in money against the trend?

On July 28, the US spot crypto ETF market showed a highly divergent set of capital flow signals.

According to Farside Investors data, Bitcoin spot ETFs recorded a net outflow of $11.6 million on the day, marking the third consecutive trading day of capital withdrawal. Ethereum spot ETFs, meanwhile, recorded a net inflow of $11.7 million on the same day, moving completely in the opposite direction to Bitcoin.

More noteworthy is that this round of Bitcoin ETF outflows was not an isolated incident. On July 23 and 24, Bitcoin spot ETFs saw outflows of $225.1 million and $240.08 million, respectively, ending the prior trend of inflows for seven consecutive trading days. Over the three days of July 23, 24, and 27 combined, net outflows totaled $476.9 million.

The implications of this data go far beyond the surface numbers—institutional capital is systematically rebalancing ahead of the FOMC rate decision. The marked divergence in fund flows between Bitcoin and Ethereum ETFs points to a deeper evolution in market structure.

Bitcoin ETF records net outflows for three straight days: What capital is leaving?

The $11.6 million net outflow on July 28 was the third consecutive day that Bitcoin spot ETFs recorded net outflows. While the single-day scale is much smaller than the hundreds of millions level seen on July 23 to 24, the signal of “three consecutive days” by itself has important trend meaning.

In terms of capital distribution, the outflow on July 28 was highly concentrated. BlackRock’s IBIT saw a net outflow of $8.82 million on the day, Fidelity’s FBTC recorded a net outflow of $2.8237 million, and all other Bitcoin spot ETFs had zero net flows that day.

This distribution pattern strongly matches the large outflows from July 23 to 24—IBIT was also the main source of outflows then, with outflow amounts over two days totaling nearly $415 million. As the world’s largest Bitcoin spot ETF, IBIT’s high liquidity and deep market make it the go-to tool for institutional investors to adjust positions. When IBIT shows sustained outflows, it often means institutions are executing systematic reductions in risk exposure rather than random trading driven by retail sentiment.

As of July 28, Bitcoin spot ETFs had total net assets of $78.71B, and the ETF net asset ratio (the share of market cap relative to Bitcoin’s total market cap) reached 6.04%. Historical cumulative net inflows have reached $51.37B. IBIT’s historical total net inflows are still as high as $60.39B—current outflow size is still limited relative to historical holdings, but the trend of continuous outflows is worth closely tracking.

Ethereum spot ETF posts net inflows against the trend: divergence signal or trend switch?

In sharp contrast to Bitcoin’s ongoing outflows, Ethereum spot ETFs recorded a net inflow of $11.7 million on July 28. All of the inflow came from BlackRock’s ETHA: a $11.7 million net inflow for the day, while other Ethereum ETFs had zero net flows.

This divergence is not accidental. As of July 28, Ethereum spot ETFs had total net assets of $10.65 billion, the ETF net asset ratio was 4.53%, and historical cumulative net inflows had reached $11.19 billion. Looking at a longer timeframe, Ethereum spot ETFs have recorded net inflows for a third consecutive week. In the week ending July 24, inflows totaled $103.8 million, about three times the inflow scale of Bitcoin ETFs in the same period.

Bitcoin ETFs saw combined inflows of about $430 million at the beginning of the week (Monday and Tuesday), but then suffered a sharp reversal; Ethereum ETFs’ inflows have been more steady. This difference in pacing suggests that institutions’ allocation logic differs fundamentally between the two asset types: Bitcoin ETF flows are driven more by changes in macro expectations, with faster in-and-out cycles and higher volatility; Ethereum ETF inflows show a more stable structural characteristic.

Institutional rebalancing ahead of the FOMC: how rate-hike expectations reshape fund flows

The key to understanding this round of capital divergence lies in the market backdrop for the July 29 FOMC rate decision.

The CME FedWatch tool shows that the market is pricing about a 34% probability of a 25-basis-point rate hike, and about a 63.7% probability of keeping rates unchanged. This is one of the biggest moments of market disagreement since September 2024. Some institutions even expect the Fed could unexpectedly raise rates by 25 basis points.

For institutional investors, the window period before an FOMC decision is a typical phase of repricing risk. Bitcoin, as a high-volatility asset, is highly sensitive to changes in actual interest rates. When rate-hike expectations heat up, institutions tend to reduce Bitcoin exposure to avoid policy uncertainty—this is the core driver behind Bitcoin ETF outflows continuously since July 23.

Bitcoin ETFs saw outflows of $465 million over two days from July 23 to 24, ending the prior trend of net inflows of about $1 billion across seven consecutive trading days. The magnitude and speed of this reversal alone show that institutional rebalancing ahead of the FOMC has a clearly “withdraw first, then reassess” characteristic.

By comparison, the institutional narrative around Ethereum is different. Ethereum ETF inflows are more based on structural allocation logic tied to its ecosystem application scenarios and staking yield, and are hit less by short-term changes in interest-rate expectations. When institutions reduce Bitcoin exposure ahead of the FOMC, some of that capital may be reallocated to Ethereum within the same time window, creating a “sell BTC, buy ETH” rotation effect.

Institutional behavior pattern: reasoning from seven straight inflow days to three straight outflow days

Looking across a longer time horizon, this round of capital flow evolution shows a clear pattern of institutional behavior.

In mid-July, Bitcoin spot ETFs experienced seven consecutive trading days of net inflows, cumulatively absorbing about $1 billion. At that time, the market saw a rebound in risk appetite driven by optimism surrounding the “Clarity for Digital Asset Markets Act” (the CLARITY Act).

On July 23, capital flows suddenly reversed. Outflows of $465 million over two days erased nearly half of the prior inflow scale. Entering this week, on July 27 (Eastern Time), outflows continued by $11.6 million, creating net outflows for three consecutive trading days.

This pattern reveals institutions’ operating logic in crypto assets: a combination of trend-following and event-driven dynamics. In time windows without major macro events, institutions tend to follow the trend (seven straight inflow days). But when key events like the FOMC are approaching, institutions prioritize reducing risk exposure regardless of the prior trend.

Bitcoin spot ETF trading volume fell to $8.05 billion within the week ending July 25, the lowest complete weekly trading volume since October 2024. Trading volume shrinking occurred in parallel with capital outflows, further confirming the view that institutional participation declined—not simply that selling pressure increased.

BTC vs. ETH ETF capital divergence: what changes are happening in market structure?

Sustained divergence in fund flows between Bitcoin and Ethereum ETFs may be more than the result of short-term event-driven factors—it could point to a deeper evolution in market structure.

At the product level, the Bitcoin ETF market is already highly mature. IBIT’s historical total net inflows reach $60.39B, and FBTC is $10B. Such a massive existing base means that even relatively small marginal outflows can look significant in absolute dollar terms. Meanwhile, the Ethereum ETF market is still in a growth phase, with total net assets of $10.65 billion—marginal impact from incremental capital is larger, and inflow signals are easier to amplify.

From an asset-attribute perspective, Bitcoin’s “digital gold” narrative makes it more sensitive to macro policy and changes in real interest rates. Ethereum, however, has both “digital commodity” and “yield-bearing asset” attributes—staking yield provides holders with cash flows similar to fixed income, which to some extent buffers the impact of interest-rate expectation changes on price.

From an institutional allocation perspective, Bitcoin ETFs have become the “core holding” option for institutional crypto asset allocation, while Ethereum ETFs are becoming an “overweight” choice. When institutions reduce overall crypto exposure ahead of the FOMC, what they cut first is typically the Bitcoin position with the best liquidity and easiest and fastest entry/exit. When institutions seek allocations in specific sub-sectors, Ethereum receives incremental capital thanks to its unique ecosystem niche.

After the capital divergence: what is the market waiting for?

Three consecutive days of Bitcoin ETF net outflows have brought the market into a critical observation window.

On July 28, Bitcoin fell to around $63,500, down about 2.5% over the prior 24 hours and hitting an 11-day low. Ethereum also slipped to around $1,880, down more than 3%. Price action and ETF capital flows are showing a high degree of synchronicity—ETF outflows and price declines are reinforcing each other in a feedback loop.

This week’s market calendar is highly packed: Wednesday’s FOMC rate decision, Thursday’s core PCE inflation report and second-quarter GDP data, plus earnings reports from tech giants including Microsoft, Meta, Apple, and Amazon; and on Friday, there will be options expirations for roughly $13 billion to $14 billion in Bitcoin and Ethereum.

The overlap of these events means that any data or decision within the next 72 hours could become a catalyst for market direction. Whether Bitcoin ETF outflows continue after the FOMC, and whether Ethereum ETF inflows against the trend can persist, will largely depend on how the Fed’s policy signals reshape institutional asset allocation logic.

From on-chain data, over the past week about 9,000 BTC left exchanges, but open interest in futures fell instead—this suggests traders are reducing exposure rather than adding bullish bets. Mid-to-long-term position “chips” have not shown large-scale loosening; short-term volatility mainly comes from the tug-of-war among leveraged derivative capital. This structure means that once FOMC uncertainty clears, suppressed institutional demand could return quickly.

Summary

On July 28, Bitcoin spot ETFs recorded net outflows for the third consecutive day totaling $11.6 million, with BlackRock’s IBIT outflowing $8.82 million; Ethereum spot ETFs recorded net inflows of $11.7 million on the same day, all from BlackRock’s ETHA. This divergence is a direct reflection of institutions systematically rebalancing ahead of the FOMC rate decision—reducing holdings of Bitcoin, which is highly sensitive to macro policy, while increasing holdings of Ethereum, which follows an independent ecosystem logic. From July 23 to 28, Bitcoin ETF net outflows totaled $476.9 million over three days, ending the prior seven-day streak of inflows totaling about $1 billion. In the coming days, the final direction of this round’s capital divergence will be jointly determined by the FOMC decision, inflation data, and large-scale options expirations.

FAQ

Q1: What are the main reasons for Bitcoin spot ETFs’ net outflows for three consecutive days?

The main driver is uncertainty ahead of the July 29 FOMC rate decision. There is significant disagreement in the market over whether the Fed will hike rates (rate-hike probability is about 34%), and institutional investors tend to reduce risk exposure ahead of major macro events. The two-day outflows of $465 million from July 23 to 24 already ended the prior trend of net inflows over seven consecutive trading days.

Q2: Why can Ethereum spot ETFs record net inflows against the trend when Bitcoin is seeing outflows?

Ethereum ETF inflows have structural characteristics—net inflows for a third consecutive week are already in place. In the week ending July 24, inflows totaled $103.8 million, about three times that of Bitcoin ETFs. Ethereum’s staking yield attribute makes it less sensitive to changes in interest-rate expectations than Bitcoin, while its ecosystem application scenarios provide institutions with an independent allocation logic.

Q3: What role does BlackRock IBIT play in this round of outflows?

IBIT is the main source of this round of outflows. On July 28, IBIT outflowed $8.82 million; over July 23 to 24 combined, it outflowed about $415 million. As the world’s largest Bitcoin spot ETF (historical total net inflows of $60.39B), IBIT has high liquidity and deep market depth, making it the primary tool for institutions to adjust positions quickly.

Q4: How does Bitcoin ETF capital outflow affect price?

On July 28, Bitcoin fell to around $63,500, down about 2.5% over 24 hours and setting an 11-day low. ETF capital outflows and falling prices formed a mutually reinforcing feedback loop, but in the medium to long term the position “chips” have not shown large-scale loosening; short-term volatility is mainly driven by competition among leveraged derivative capital.

Q5: How might fund flows evolve after the FOMC decision?

It depends on the Fed’s policy signals. If rates are kept unchanged and the Fed releases a more dovish signal, the institutional capital that withdrew earlier could return quickly; if there is a rate hike or a hawkish signal, pressure from Bitcoin ETF outflows could continue. This week also includes core PCE inflation data, GDP data, and options expirations of about $13 billion to $14 billion, and the combination of multiple events will determine the market’s direction.