Bitcoin and Ethereum Climb After June’s ETF Exodus

Bitcoin traded at $77,261.63 on September 13, a 32% bounce from the June close, after the worst month U.S. spot Bitcoin ETFs have posted. Ethereum was at $2,525.27, up 61% from its June 5 close of $1,568.77.

On June 5, Bitcoin’s high was $63,915 and it closed at $61,042, with Ethereum already under $1,800. Some market observers treated that washout as a chance to buy if fund demand came back later in 2026. August’s bid paid that window. Four straight outflow days into a Federal Reserve meeting now ask whether the bid still wants the coins.

A $58,526 Close After June’s 20% Slide

June did not give buyers a gentle discount. June’s daily Bitcoin closes show the month opened at $73,568, printed a high of $73,984 on June 1, and finished at $58,526, a 20.4% drop from that open. The low was $58,035 on June 25.

June 5, the session that framed the caution call, opened at $63,811 and never traded above $63,915. It undercut $59,100 before settling at $61,042. The next three weeks spent most of their time in the low $60,000s, then lost the $60,000 handle in the last week of the month.

Ethereum’s June 5 tape on CoinGlass was uglier in percentage terms. The coin opened at $1,580.88, traded as low as $1,506.51, and closed at $1,568.77 after already breaking the $1,800 line the source tape flagged. That print is the base for the 61% bounce on the YCharts series.

The people who called June a buy zone were not buying a quiet dip. They were standing in the month U.S. spot Bitcoin ETFs would later book as their worst on the books, while capital was still leaving for AI-linked equities. The bet was that those two pressures would fade later in 2026, not that they had already faded.

Spot Bitcoin ETFs Lost $4.5 Billion in 21 Days

Flow tables for U.S. spot Bitcoin ETFs record a $4.5 billion June net outflow across 21 trading days, with only three inflow sessions against 18 outflow days and a daily average of -$214.8 million. June 25 was the largest single hit, at -$696.3 million. That is the hole the June 5 caution call was sitting in, and it matches the June outflow wave in Bitcoin and Ethereum funds already on this desk.

BlackRock’s iShares Bitcoin Trust did a lot of the damage. IBIT accounted for $213.7 million of the $325.7 million that left on June 5, with Fidelity’s FBTC and Grayscale’s GBTC adding $59.7 million and $60.8 million. The opening week was already a rout before that Friday print.

THE WORST JUNE OUTFLOW DAYS

• June 2: Funds lost $519.2 million, the second-largest session of the month, after a $483.8 million hit on June 1.
• June 3: Another $396.6 million left, so the first three sessions of June had already taken well over $1.3 billion.
• June 4: The only early green day, and a tiny one, at +$3.0 million before selling resumed.
• June 24: A $469.1 million redemption wave started the late-month collapse that took Bitcoin through $60,000.
• June 26: IBIT alone shed $444.5 million, a one-fund flush the day after the month’s worst total.

July barely stopped the bleeding. Flow tables show a $172.4 million net inflow over 22 sessions, 13 of them green, which is a rounding error next to June. July 13 still printed a $424.7 million outflow. Citigroup, in early July, cut its 12-month Bitcoin target to $82,000 from $112,000 and marked expected ETF inflows at zero, down from $10 billion. Hashdex and Charles Schwab argued the other side: the selling was a rotation into AI infrastructure, not a broken Bitcoin market. August would decide which reading had the money.

The $606 Million Session That Reopened the Bid

August answered with $3.5 billion of net inflows over 21 sessions, 16 of them inflows, at a daily average of +$167.8 million. The peak day was August 20, at +$606.3 million, of which IBIT took $503.0 million. August 19 had already added $517.2 million. From August 17 through August 27 the complex ran nine straight green sessions.

Price followed the creations. YCharts has Bitcoin at $64,686.26 on August 19 and at $78,317.78 on August 22. Binance Research counted a 24.8% seven-day gain in that stretch among the top 1% of weekly Bitcoin moves since 2020. The June close of $58,526 was no longer the market. By August 31 the same series had Bitcoin at $77,658.23.

MONTHLY SPOT BITCOIN ETF FLOWS

August 28 broke the streak with a $201.8 million outflow, a reminder that the bid was real and still jumpy. The month still flipped the June hole on its head. Anyone who bought the June close was sitting on that 32% gain before September opened, which is the cleanest grade the accumulation call has so far.

Ethereum Outran Bitcoin on the Way Back

Ethereum did not wait for Bitcoin to finish the repair. From the June 5 close of $1,568.77 it is at $2,525.27, a 61% rise against Bitcoin’s 32% from the June month-end close. Spot Ethereum funds had already started to diverge in July, when they posted a third straight weekly inflow even as Bitcoin products were still chopping around that $172.4 million month.

By late August the split was obvious on the tape. U.S. spot Ethereum ETFs booked a 10-day inflow run, including $102.1 million on August 28, the same session Bitcoin products lost $201.8 million. SoSoValue’s tracker then showed $216 million of net inflows into those Ethereum funds on September 11, against a $13.3 million Bitcoin-side outflow.

That is not an altcoin carnival. It is fund money choosing the settlement layer while the larger Bitcoin complex catches its breath. It also fits Ethereum’s growing role in onchain finance, where stablecoins, staking, and tokenized cash have kept a bid under the asset even when the token lagged Bitcoin on the way down. The June 5 break under $1,800 looked like a lost psychological line. On the September 13 print it looks like the cheap entry the accumulation camp said it wanted.

How AI Spending Became an Argument for Bitcoin

The June slide was sold as a rotation story: speculative cash leaving digital assets for high-growth AI equities, on top of ETF redemptions and leveraged liquidations. That reading was fair on the flows. Semiconductor products were taking in money while spot crypto funds were handing it back, and Bitcoin spent June proving it still trades like a high-beta risk asset when the dollar and yields get a bid.

The same concentration is now the bull case in a wealth-management shop. Bitcoin Suisse, in its Crypto Wealth Management Report 2026, said the largest U.S. hyperscalers are expected to spend more than $800 billion on AI this year and more than $1 trillion in 2027, leaving investor attention trapped in a small group of technology names until that speculative cycle breaks. U.S. federal debt has crossed $40 trillion, which the firm says has weakened the old stock-and-bond hedge. Its back-test had a conventional portfolio’s annualized return rising from 6.2% with no bitcoin to 7.2% with a 1% allocation funded from bonds, and to 8.6% at 2.5%.

It is important to acknowledge that Bitcoin, despite its 15-year existence, is still a relatively young and volatile asset class. Investors planning to allocate part of their portfolio to Bitcoin should possess a long-term investment horizon and a risk tolerance suitable for this market.

Laurent Irgolic, Business Analyst, Bitcoin Suisse

That is a different use of the AI trade than the one that emptied IBIT in June. Then, AI was the competing asset. Now it is the reason a 1% bitcoin sleeve is being pitched as a separate risk, not a safer one. The June buyers did not need that slide deck. They needed creations to turn positive, and in August they got them. The report is what a wealth desk writes after the bounce, when the question is no longer “will anyone buy this” and has become “how much of the AI-heavy book should sit in a different risk.”

Why Did Bitcoin ETFs Flip Red Again in September?

They flipped because the August bid was large and still tactical. Through September 11, U.S. spot Bitcoin ETFs are net +$307.4 million over eight sessions, which looks healthy until the calendar is split in half. September 3 brought a $730.9 million inflow, the biggest day of the month, with IBIT taking $454.0 million. September 1 had already lost $236.5 million. Then the four sessions from September 8 through September 11 ran red for a combined $462.7 million, ending with a $13.3 million drip on the 11th, the fourth straight outflow day on the U.S. spot Bitcoin ETF dashboard.

Assets in the group were about $97.6 billion on September 11, with $55.1 billion of cumulative net inflows since the products launched on January 11, 2024. Those stock figures did not stop the tape from treating each session as a fresh vote. Fund flows that can take in $730.9 million on a Thursday and give back $282.6 million seven days later are a demand source. They are not a volatility dampener, and anyone who bought June on the idea that “institutions are in now” has had that lesson twice in 11 days.

SEPTEMBER’S FLOW REVERSAL

1. September 1, 2026: U.S. spot Bitcoin ETFs post a $236.5 million net outflow, wiping out August 31’s $216.7 million inflow.
2. September 3, 2026: Creations hit $730.9 million, the month’s high-water mark, and IBIT alone adds $454.0 million.
3. September 8, 2026: A four-day outflow streak starts at -$46.6 million and builds through -$120.2 million and -$282.6 million.
4. September 11, 2026: Bitcoin funds lose $13.3 million while Ethereum funds take in $216 million on the SoSoValue tracker.
5. September 15-16, 2026: The Federal Reserve meets, with rate-hold-versus-hike odds the live macro input for the same ETF bid that just went cold.

Higher yields and the chance that U.S. rates stay restrictive have been the near-term weight on the coin, which is why a $77,261.63 print can look like a hold and a stall at the same time. YCharts has the local high of this bounce at $80,329.35 on September 7. The June buyers are still up. They are no longer up as much as they were a week earlier, and the products that certified the August demand just spent four sessions un-certifying it.

The June 5 call was never “Bitcoin cannot fall.” It was that a later-2026 return of fund demand would make the $58,526 close, and the $1,568.77 Ethereum print, look cheap. August produced the demand. September 15 and 16 will show whether that demand still answers the bell after a $462.7 million four-day leak.

Disclaimer: This article is news reporting and market analysis for information only. It is not investment advice, a recommendation to buy or sell bitcoin, ether, or any spot crypto ETF, or a prediction of Federal Reserve policy. Readers should consult a licensed financial adviser or other qualified investment professional who can assess their own time horizon and risk tolerance before acting on any price, flow, or allocation figure mentioned here. Figures and fund statuses reflect the named data providers as of the dates given and can change on the next trading session.