The week of August 17 through August 23, 2026.

The bottom line

Bitcoin rose 21.81% this week to $77,502.33, its biggest weekly gain in two years, after the US Treasury expanded its bond buyback program and traders betting against Bitcoin were forced to buy back in. The mood flipped from fear to greed, with the Fear and Greed index climbing from 41 to 73. Nine of the twelve US spot Bitcoin funds took in money, led by BlackRock’s fund at $1.17 billion. The next US inflation report is 17 days away.

The headline

Bitcoin gained 21.81% across the seven-day window, closing at $77,502.33 against an open of $63,626.81, and the move was the week’s only real story. The low of $63,378.36 printed Monday afternoon, hours into the window; the high of $79,186.69 arrived Friday morning. The weekly average of $71,772.57 sits closer to the low than the high, which is what a late-week vertical move does to an average. As of Monday morning the tape is cooling and the coverage is not. Fresh reporting has US spot Bitcoin funds taking in $1.92 billion last week, the strongest weekly inflow since October 2025, with one outlet calling it the largest weekly dollar gain in Bitcoin’s history, while Ray Dalio says investors should own a bit of Bitcoin as US debt risks rise, though he still prefers gold as the bigger hedge.

Price and macro backdrop

The shape of the week was three flat days and then a launch. The editorial log spent Monday and Tuesday on a market holding near $64,000 while Citi planned Bitcoin custody, Metaplanet pushed into the US, and $115 million in Coldcard losses and a Jane Street stake were confirmed. Wednesday the log turned: Bitcoin surged past $68,000 on a Treasury buyback boost, topped $69,500, then $70,000 as the Treasury doubled buybacks. Friday it broke $75,000 as a $3 billion short squeeze ignited the rally, printing the weekly high of $79,186.69 before cooling into the weekend. Sentiment moved the whole way with it. The Fear and Greed index opened its daily prints at 41 and closed at 73, averaging 61.57 across seven readings, crossing from fear through neutral into greed inside a single week.

The move was Bitcoin’s own, and only partly shared. The S&P 500 fell 1.43% to 7,674.37, setting its high of 7,785.76 at the window open and its low of 7,641.16 on Thursday. Gold added 5.61% to $4,703.40, peaking at $4,707.70 Monday morning. The VIX rose 6.84% to 15.93 after a Thursday peak of 16.05, a firmer volatility bid than an equity index down 1.43% usually carries. Strategy (MSTR) gained 28.17% to $119.25, high of $120.42 Friday, and finished at a 1.47% discount to the value of its Bitcoin holdings. The 30-day correlation to gold read 0.5381 and is tagged coupled; the correlation to the S&P 500 read 0.1625 and is tagged decoupled. Both tags described this week accurately, which is unusual: hard assets rose together while equities went the other way.

The macro plumbing did not explain the move; the Treasury did. Net liquidity sat near $5.79 trillion, down about $3.4 billion week over week, a small continued drain. The federal funds rate held at 3.63%, the 10-year to 2-year spread at 0.50, and M2 growth at 5.53% year over year. What changed was the debt trade. The log recorded Treasury yields hitting a 2007 high early in the week, then expanded buybacks by Wednesday, and fresh coverage frames the outcome plainly: a $4 billion bond buyback that wanted lower yields got a Bitcoin surge instead. The frame that carried these pages for months, fearful psychology on an intact structure, inverted this week. The structure barely moved. The psychology did all the work.

Technical setup

The daily chart is stretched. The 14-day relative strength index closed at 79.97, deep in overbought territory, and %B read 0.9510, pinned against the upper volatility band. The daily MACD line at 3,334.00 sits well above its signal at 1,749.23, and the 14-day average true range widened to 2,123.35. At $77,502.33 price stands above both the daily 50-period average of $65,432.29 and the 200-period average of $69,079.66, having spent the prior week below the latter. Monday’s intraday tape has already cooled: the hourly relative strength index reads 55.35 with an hourly %B of 0.7238 and an hourly average true range of 486.28, with price sitting just above the hourly 50-period average of $77,133.77. The daily read says overbought; the hourly read says the flush has partly happened already.

ETF flows

The captured flow window runs four reporting days, August 18 through August 21, and it is the most one-sided window these pages have recorded. BlackRock’s IBIT took in $1,170.6 million on net, with a single-day inflow of $503.0 million on August 20 against a $143.6 million outflow on August 18. Fidelity’s FBTC netted $181.2 million, ARKB $112.7 million, and Bitwise’s BITB $87.3 million. Grayscale’s mini Bitcoin fund added $36.2 million, GBTC $21.2 million, MSBT $17.7 million, Franklin’s EZBC $5.9 million, and Invesco’s BTCO $3.6 million. VanEck’s HODL was the only net redeemer at $16.1 million. BTCW and BRRR sat flat at zero.

The rows and the log agree for once. The log’s Friday entry recorded $517 million in single-day spot ETF inflows, the strongest in months, and by the weekend it had the week at $2.6 billion across Bitcoin and ether funds, the strongest since October, with trading volume tripling to $29 billion. Fresh Monday coverage puts the spot Bitcoin share at $1.92 billion, the strongest weekly inflow since October 2025. Last week’s open question was whether four straight redemption days would extend into a streak. They did not. They reversed into the largest inflow week of the year so far.

On-chain and mempool

The network told a quieter and stranger story. The hashrate estimate, noisy by construction, fell 17.43% from 1,025.30 exahashes per second at the open to 846.58 at the close, with the week’s trough of 782.11 printing Thursday and the peak arriving at the window open, against an 899.53 weekly average. A price up 21.81% and a hashrate estimate down 17.43% in the same seven days is the kind of divergence that usually resolves as measurement noise rather than miner behavior, and the news flow offered no capacity story to support it.

Blockspace stayed unremarkable in volume and got more expensive at the margin. Pending transactions rose 3.97% to 81,393 after a Thursday-evening peak of 102,323 and a Sunday-night trough of 67,993. The backlog by virtual size fell 3.15% to about 41.8 million vbytes, having peaked near 50.7 million Friday night. Total fees waiting in the mempool rose 44.19% to about 12.47 million satoshis from 8.65 million at the open, with a Friday-night spike to 33.58 million against a 6.46 million trough. Fee pressure rose with the rally and settled with it. Nothing approached congestion.

Derivatives

Leverage leaned long and stayed there without stretching. Perpetual funding read +0.0063% per interval at the latest sample against a +0.0060% seven-day average; the digest tags the funding regime positive, with no flip flagged. Open interest across venues stood near $8.42 billion, and CFTC commitments showed open interest of 108,800 Bitcoin as of the August 18 report. That funding sat this calm through a $3 billion short squeeze is the notable part: the move cleared shorts rather than crowding longs. Fresh Monday coverage confirms the clearing continued over the weekend, with roughly $250 million in over-leveraged long positions wiped out and open interest down 2.65%, described as leverage clearing rather than longs rebuilding. Separately, the log recorded US exchanges launching high-leverage Bitcoin perpetual futures on regulated venues, a structural change whose effect on these numbers will take weeks to read.

Order book regime

Into Monday morning the book is balanced and tight. The imbalance read -0.0083 against a 24-hour average of -0.0064, in a range that ran from -0.6198 to +0.6693, so the current tilt is negligible against a day that swung hard both ways. Bid-side depth within 2% of mid sat at 7.03 Bitcoin against a 6.79 baseline, ask-side depth at 7.14 against a 7.09 norm, both shelves within a hair of their daily averages. The spread held at 0.0013 basis points against a 0.0332 average, essentially the tightest reading of the 24-hour window, whose maximum reached 0.7664. The dominant resting wall sat on the bid side almost exactly at the mid-price of $77,538.055, with a prominence of 7.06. After a 21.81% week, the book is neither thin nor lopsided.

News and policy threads

The debt thread ran the week and ended it. It opened with Treasury yields at a 2007 high, moved through expanded buybacks that lifted Bitcoin rather than lowering yields, and closed with Ray Dalio saying recent Treasury-market stress fits his long-running debt-crisis framework and that investors should own a bit of Bitcoin, while still preferring gold as the bigger hedge. The log’s Friday entry paired the buyback expansion with CLARITY Act momentum and talk of US Bitcoin accumulation, and noted that some analysts called the rally premature. Fresh Monday coverage carries the same tension forward, with one analyst arguing the bear market may be over after a 20% rally while another has Bitcoin overbought and stalling at $78,000.

The institutional thread was busier than the price move suggests. Citi disclosed plans for Bitcoin custody. Metaplanet is launching a US Bitcoin treasury vehicle through a $135 million nanocap deal, seeding it with 2,100 BTC. Strategy raised $334 million from shareholders and put none of it toward Bitcoin, extending a two-month buying pause, a notable absence in the week Bitcoin rose 21.81%. Jane Street’s stake was confirmed early in the week. US exchanges launched high-leverage Bitcoin futures while SEC rules for crypto fundraising remain stalled.

The infrastructure thread was the week’s countercurrent. The $115 million Coldcard loss total was confirmed and the firm hardened its firmware following the seed exploit. Bitcoin Core is weighing a CJDNS warning in version 32.x and possible removal in 33.x after one seeder found only seven healthy nodes, exposing users to eclipse attacks. A Bitcoin mining IPO drew scrutiny for asking public buyers to fund 99.8% of consideration for 10% of equity, leaving $6.31 in immediate dilution. Fresh coverage adds unresolved fork risks as a new eCash test chain launched ahead of an October 31 deadline. None of it slowed the tape, which is itself worth noting.

The week ahead

The scheduled macro calendar is empty and the unscheduled one is not. The next consumer price report lands September 10, 17 days out, and the next FOMC decision September 15, 22 days away, so neither is close enough to anchor this week. Fresh coverage points instead at July PCE data and revised second-quarter GDP as the prints that could decide the next move. Inside Bitcoin, the halving cycle sits 58.59% complete at 856 days since the last one, short of any milestone.

The open questions follow the week’s own logic. Whether a daily relative strength index at 79.97 and a %B of 0.9510 resolve through a pullback or through consolidation is the technical question, and Monday’s hourly reading of 55.35 suggests the market is already answering it. Whether $1.92 billion of weekly inflow was a repositioning or the start of a bid is the flow question. And whether Strategy, having raised $334 million during the largest weekly gain in two years and bought nothing, is exercising discipline or has stopped accumulating remains the treasury question it was a week ago, only louder.

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onlyhashes.com publishes a weekly Bitcoin review every Monday morning. The data behind this post is generated by Bitcoin Sidekick’s OreRelay infrastructure: Bitcoin-only, no third-party trackers, no altcoins. Disclosures: this is editorial commentary on publicly available market data; nothing in this post is investment advice.