Good Morning Blocksignal Community,
Bitcoin spent Saturday cooling off from one of its strongest weeks in months. After briefly touching 87,000 dollars for the first time since January, the largest cryptocurrency eased back to the low 84,000s as a record 2.4 billion dollar week of ETF buying lost momentum day by day. The pullback lined up almost exactly with U.S. Treasury yields climbing to multi-decade highs on rising odds of an October rate hike, a reminder that even a rally built on real institutional demand still has to compete with what the Fed does next. Layered on top: Bitget confirmed 387.5 million dollars in losses from a backend-infrastructure hack, and Coinbase quietly went live with tokenized U.S. stocks as loan collateral on Aave, two stories that capture where crypto still has security work to do and where it is pushing further into traditional finance at the same time.
Bitcoin closed Saturday around 84,038 dollars, down about 0.8 percent on the day after trading in a range of roughly 83,166 to 85,230 dollars, according to CoinGabbar. Ethereum held closer to flat at 2,692 dollars. Both numbers look unremarkable in isolation, but they cap a week where Bitcoin ran from the low 80,000s to an eight-month high above 87,000 dollars before giving some of that back. Fundstrat's framing from earlier in the week still holds: the breakout looked credible, even if the path higher was never going to be a straight line. By Saturday, that is exactly what played out. Total crypto market capitalization stood at roughly 2.98 trillion dollars, up slightly on the day, with the Fear and Greed Index reading 74, solidly in "Greed" territory despite the pullback.
The ETF story is the real headline of the week, and it comes with a catch. U.S. spot Bitcoin ETFs pulled in 2.4 billion dollars over the five trading days through Friday, their strongest week of 2026 and enough to flip cumulative 2026 flows from roughly 5.8 billion dollars in the red back in July to positive territory. BlackRock's IBIT led with 1.2 billion dollars, Fidelity's FBTC added another 701.7 million dollars. But the daily pattern tells a less bullish story: Monday alone brought in 999 million dollars, then inflows shrank every single day after that, down to just 134.5 million dollars by Friday, an 87 percent collapse in daily demand across the week. Bloomberg's Eric Balchunas has tied a good part of the surge to the Treasury Department's plan to increase buybacks of long-dated bonds rather than to fresh conviction about Bitcoin itself. On-chain research from Glassnode adds a technical reason for the stall: a large block of long-term holder supply sits right around 84,000 to 85,000 dollars, acting as a wall that has to clear before the next resistance zone near 95,000 to 97,000 dollars comes into view. Bitcoin remains roughly a third below its October 2025 all-time high of 126,198 dollars.
The macro backdrop got tighter this week. The 10-year Treasury yield pushed past 5.1 percent and touched multi-decade highs on Friday as markets priced in a real chance the Fed hikes again in October, with CME's FedWatch tool putting the odds at roughly 70 percent as of midweek. That is a notable shift from earlier in the year, and it is the main reason risk assets, crypto included, had to fight for every dollar of gains even as ETF demand stayed positive. Yields eased slightly as oil prices fell back, which took some of the pressure off by the weekend, but the underlying message has not changed: a live rate-hike debate is now part of the calculation for anyone holding Bitcoin or Ethereum into the fourth quarter.
Bitget confirmed on Friday that a hack detected the day before had grown to 387.5 million dollars in losses, making it the largest crypto exchange breach of the year. The attackers did not steal private keys or forge withdrawal requests directly; instead they got into backend wallet infrastructure and spoofed transaction data so the exchange's own systems approved payouts that looked routine, CEO Gracy Chen said, comparing it to slipping a fake withdrawal slip past a bank teller. Roughly 157 million dollars of the loss was in XRP alone. Chen pointed to IP addresses and transaction patterns resembling North Korea's Lazarus Group, the same actors blamed for last year's 1.4 billion dollar Bybit hack, though she was careful to note the attribution is not confirmed. Bitget froze withdrawals as a precaution and says its 464 million dollar User Protection Fund will cover the full loss, with a reinstatement plan already announced. On a very different note, Coinbase-issued tokenized versions of seven major U.S. stocks, including Apple, Amazon, Meta, Microsoft, Nvidia and Tesla, went live as loan collateral on Aave's new Base-based Equities Hub. The caps are deliberately small, a combined 29 million dollars across all seven stocks, which says more about how cautiously institutions are still approaching this corner of the market than about demand.
That caution traces back to the same story that has been sitting in the background all month: the Clarity Act stalled in the Senate, leaving the SEC and CFTC to write crypto market structure rules on their own rather than waiting for Congress. Neither the Aave equities launch nor Bitget's hack response happened in a regulatory vacuum, and both read as evidence of an industry building ahead of clear rules rather than after them.
Heading into the new week, the two threads worth watching are whether Monday's ETF flows repeat last week's strong start or confirm the fading trend, and whether Bitcoin can hold the 84,000 to 85,000 dollar zone Glassnode flagged as resistance rather than losing it back to the low 80,000s. Bitget's full incident report and root-cause analysis are still pending. The next Fed decision lands October 27 and 28, and with hike odds now a real possibility rather than a tail risk, expect that date to start showing up in crypto positioning well before it arrives. As always, this is market commentary, not investment advice.
Sources
The Block — Bitcoin ETFs turn positive for 2026 with $2.4 billion weekly inflow, their largest since October
24/7 Wall St. — Bitcoin ETF Inflows Reach $2.4 Billion This Week, But Daily Figures Decline
The Coin Republic — Bitcoin ETF Inflows Hit 2026 Record as BTC Price Holds Above $84K
CoinGabbar — Crypto News Now: Bitcoin and Ethereum Drops, DeFi Gains
Decrypt — Bitget Hack Losses Climb to $387M: Here's What Happened, and Why North Korea Is a Suspect
The Block — Aave V4 on Base adds Coinbase tokenized stocks as collateral for USDC loans