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The Afternoon Brief: BlackRock's stablecoin bet, Coldcard's $89M theft, dollar pressure on BTC
BlackRock launched two tokenized money market funds aimed at serving as reserve assets for regulated U.S. stablecoins under the proposed GENIUS Act, even as Coldcard losses mount to $88.6 million and the U.S.-Japan currency intervention raises questions about what is actually pressuring bitcoin prices.
BlackRock deepened its bet on institutional on-chain cash infrastructure today by unveiling two tokenized money market funds designed to qualify as eligible reserve assets for U.S. stablecoin issuers. The BlackRock Select Treasury Based Liquidity Fund (BSTBL) trades on Ethereum, while the BlackRock Daily Reinvestment Stablecoin Reserve Vehicle (BRSRV) spans multiple blockchains, per the desk's reporting. Both filed with the SEC in May 2026 and are structured to meet the reserve requirements laid out in the proposed GENIUS Act. The move signals BlackRock's confidence that federal stablecoin regulation is approaching, and that it will capture a substantial share of reserve asset management as issuers move to comply. BlackRock now manages $60 billion of the $300 billion stablecoin reserve market, according to the reporting.
Separately, the Coldcard seed flaw breach has grown substantially. Galaxy Research counted 1,367 bitcoin, approximately $88.6 million at the prices it cited, drained from 4,585 addresses across three confirmed waves as of August 1. The first wave on July 30 swept 1,083 bitcoin from 1,196 addresses in 41 minutes; the third wave, over Friday into Saturday UTC, took 208 bitcoin from 1,912 addresses. A suspected fourth wave beginning Sunday moved an additional 388.93 bitcoin from 462 addresses and is not yet in the confirmed total, per Galaxy Research's Alex Thorn. The pattern suggests attackers worked down a list from the richest derivable wallets to smaller balances. Coinkite has destroyed affected inventory awaiting shipment.
On the macro front, the U.S. and Japan jointly intervened in currency markets Friday, reversing USD/JPY from near 164 to 156.5 by Monday, according to the desk's reporting. Treasury Secretary Scott Bessent confirmed the action and stated the U.S. will not hesitate to participate in further joint intervention. The intervention echoed the August 2024 shock that triggered a sharp yen carry unwind and a roughly 20% bitcoin decline. However, the desk's analysis shows bitcoin's 52-week rolling correlation with USD/JPY reached minus 0.90, indicating BTC falls alongside a weakening yen, opposite to carry-trade logic. This suggests dollar strength, not yen weakness, is the primary pressure on bitcoin, rather than fear of another carry collapse.
The desk's boards show bitcoin at $63,653.85, down 0.34% on the day and 1.59% over the week, with the Fear and Greed Index at 28, in the fear range. Per the desk's Whale Watch board, $103.1 million in bitcoin moved off exchanges over the past 24 hours. Ethereum is up 1.81% over the week but down 0.78% on the day. Bitcoin ETF flows turned negative on July 31, with outflows of $265.4 million that day, after three weekly inflows; the last five sessions show cumulative outflows of $61.5 million. Ethereum ETF flows remain slightly positive, with $9 million inflow on July 31 and $10 million over the last five sessions.
The day splits three ways: institutional infrastructure tightening around stablecoins ahead of legislation, a major hardware wallet breach cascading across multiple waves, and debate over whether dollar strength or yen carry unwind is driving crypto weakness.
Three stories define the midday picture: BlackRock is building the institutional reserve infrastructure for regulated U.S. stablecoins ahead of the GENIUS Act, a Coldcard seed flaw continues to drain customer holdings across multiple waves, and the U.S.-Japan currency intervention has reignited carry-trade fears but the desk's analysis suggests dollar strength, not yen weakness, is the real pressure on prices. Watch the CLARITY Act vote on August 8 and the GENIUS Act checkpoint on January 20, both near-term legislative deadlines. Watch Bank of Japan policy and U.S. yield curves to determine whether carry unwind or dollar strength is the dominant macro driver.
And that's the way it is.
Sources
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