Bitcoin spent August building what looked like institutional momentum: a rally from roughly $62,000 to an overnight high of $81,479 on August 28, nine consecutive days of ETF inflows totaling more than $3 billion, and a Fear and Greed reading deep in greed territory. Then Fed Chair Kevin Warsh stepped to the podium at Jackson Hole, and the entire weekly gain compressed into a single Friday session.

The Macro Jolt

Bitcoin fell about 3% over 24 hours to roughly $77,955 by early Friday afternoon ET, after trading as high as $81,479.50 overnight. The catalyst was precise: Warsh held out the prospect of higher interest rates should inflation fail to ease soon. Markets moved fast. CME FedWatch showed September hike odds around the mid-50% range by Friday, up sharply from the prior day’s roughly mid-30% range. Rates moved with it, though the two-year Treasury yield was closer to 4.24% on August 28 (daily close data) than 4.312%.

The PCE backdrop gave him cover: headline PCE inflation was 3.7% year over year in July, and core PCE inflation was 3.3% year over year. Bitcoin dropped as low as $76,845 around 12:25 p.m. ET after Warsh said the Fed still has “work to do” if inflation does not move toward its 2% target. The University of Michigan’s final consumer sentiment index fell to 51.7 in August from 55.2 in July. The dovish counter came from Mohamed El-Erian, who called those hike odds “too high.”

The $6.4 Billion Expiry: What It Actually Did

Around 81,700 bitcoin options expired Friday, with calls outnumbering puts and max pain sitting at $68,000. The expiring contracts included 44,639 calls and 37,061 puts. With the $75,000 strike carrying approximately $236 million in call notional and the $80,000 strike holding about $157 million, dealers had built hedges that could require incremental spot selling as price slid through those levels around expiry. A $6.4 billion book can create hedging flows large enough to matter, even without a fresh headline. Here, the Warsh speech and the expiry mechanics hit the market in the same window.

Bitcoin options settled at $79,682. With the expiry cleared, the structural anchor near $80,000 is gone. On the September 4 expiry, the $82,000 strike holds 5,931 contracts, about 22% of everything open for that date. That is where dealers now build their next hedge book.

ETF Inflows vs. the Marginal Seller

August 27 was the ninth consecutive trading session of net inflows for US spot Bitcoin ETFs, a streak that began on August 17 and has brought approximately $3.04 billion into the funds. Combined net assets moved above the $100 billion threshold in late August. BlackRock’s IBIT led the August 27 session with $277.6 million of inflows.

Persistent ETF buying did not prevent the Friday selldown. That divergence tells the positioning story. Bitcoin ETFs remained roughly $2.5 billion net negative for 2026 before August’s rebound. August inflows represent genuine institutional re-engagement, but the Friday selldown points to a different actor: leveraged perpetual positioning built during the rally. The latest liquidation framing in the original draft was too specific and too small. The August 19 move was widely characterized as a major short squeeze with liquidations in the billions of dollars across crypto markets, dominated by shorts, rather than about $160 million in BTC liquidations. By August 28, the crowded trade had likely rotated: shorts were cleaner, longs carried more of the leverage. Warsh pulled the trigger on a forced unwind.

MSTR and COIN: The Beta Trade

Strategy shares traded lower as investors weighed fresh equity issuance and a pullback in Bitcoin’s price. The decline followed Strategy’s latest capital-raise update tied to its Bitcoin treasury strategy. Between August 17 and 23 alone, the company sold 18.26 million MSTR shares through its at-the-market program and raised $2.01 billion in net proceeds. Strategy holds 840,447 BTC, approximately 4.00% of total bitcoin supply, plus a $5.10 billion USD Reserve. Strategy has not resumed Bitcoin purchases, leaving its next move dependent on whether the rally restores STRC near its $100 stated amount.

Coinbase faces a structural revenue problem that Friday’s selldown amplifies. Q2 transaction revenue totaled $599 million, a 22% decline from the prior quarter, while subscription and services revenue held at $555 million. Coinbase posted about $1.20 billion in total Q2 2026 revenue, missing Wall Street expectations, with a GAAP net loss of $359.5 million, or $1.36 per diluted share. Any sustained drop in Bitcoin price and volume directly compresses the transaction revenue line that has been under pressure.

Technical Framework

The 50-period simple moving average on the four-hour chart is rising near $77,800. The 100- and 200-period averages sit much lower, around $70,900 and $67,500. The four-hour RSI is near 54, below its signal average around 59 and well under the overbought readings reached earlier in the rally. The $77,800 zone is the first meaningful technical test. A close below it on volume would bring $75,000 into play, where the largest call concentration from Friday’s expiry had been anchored. On the upside, $80,000 is now resistance, reinforced by the post-expiry shift in dealer hedging.

Scenario Modeling

Bull Case

Bitcoin holds above $77,800, funding rates normalize toward zero from elevated levels, and September hike odds recede on softer data before the FOMC meeting. ETF inflows sustain above $200 million per day. BTC retests $80,000 to $82,000. MSTR and COIN recover their Friday losses within a week.

Base Case

BTC consolidates between $76,000 and $80,000 ahead of the September FOMC decision. ETF inflows continue but at a slower pace as rate uncertainty weighs on risk appetite. The September 4 expiry at $82,000 caps any sharp recovery. COIN and MSTR remain range-bound with elevated intraday volatility.

Bear Case

September hike odds push above 65% on additional Fed commentary or a hot PCE reading. Bitcoin loses $77,800 on the four-hour chart, triggering a retest of $74,000 to $75,000. ETF inflows stall or reverse. MSTR’s mNAV compression accelerates given the ongoing ATM dilution; COIN tests its July lows as transaction revenue guidance for Q3 is revised down.

Active Trader Positioning

The analytical priority now is distinguishing ETF-driven spot demand from leveraged perpetual positioning. When ETF inflows and spot price diverge sharply in opposite directions, as they did Friday, the directional signal often belongs to the derivatives market, not the ETF flow. Monitor next week’s daily IBIT flow figures and the two-year Treasury yield. A yield above 4.40% would signal that hike expectations are still building.

For MSTR and COIN traders: both names carry amplified beta to BTC, but the risk profiles differ. MSTR’s downside is bounded in part by Strategy’s $5.10 billion USD Reserve and its ability to manage preferred dividends without selling Bitcoin. COIN’s downside is directly tied to trading volumes and volatility. In a low-volatility, flat-BTC environment, COIN’s revenue model faces more pressure than MSTR’s treasury structure. Size positions for that asymmetry, not for the headline move.

Preparation over prediction. The September FOMC date, the September 4 options expiry, and the next PCE print are the three known catalysts. Each one could reset the framework. Disciplined traders define their levels before those events arrive, not during them.