CoinDesk reports that well-known corporate buyers are back in accumulation mode for Bitcoin (BTC) and Ethereum (ETH) just as the market begins to show early signs of a rebound. This week, Strategy logged one of its largest Bitcoin buys on record, lifting total holdings to more than 800,000 BTC. BitMine Immersion Technologies, despite sizable unrealized losses, made its biggest Ethereum purchase since December. Traditional finance is also continuing to probe blockchain rails, with Japan testing government bonds onchain. In the U.S., crypto regulation remains slow-moving as lawmakers stay split over the central market-structure bill. Strategy deploys $2.5 billion to expand Bitcoin holdings Michael Saylor's Strategy resumed large-scale accumulation, buying 34,164 BTC for $2.54 billion and raising total holdings to 815,061 BTC. The purchase averaged about $74,395 per bitcoin, pushing cumulative bitcoin investment above $61.5 billion. The move reinforces Strategy's status as the largest institutional BTC holder, with its treasury controlling a meaningful share of total supply. The company funded the purchase through market issuance of preferred and common shares, underscoring its continued use of capital markets to finance bitcoin acquisitions. BitMine steps up Ethereum accumulation BitMine Immersion Technologies added 101,627 ETH, its largest single Ethereum purchase since December. Total holdings now stand at roughly 5 million ETH, following several weeks of steady buying. Despite significant unrealized losses, the latest addition signals the company remains committed to a long-term Ethereum treasury strategy. With its holdings representing a substantial slice of circulating supply, BitMine is advancing toward its stated objective of controlling about 5% of all ETH, even as market dislocations persist. Japan pilots onchain use of government bonds Japan Securities Clearing Corporation is testing Japanese government bonds as collateral on the Canton Network, extending tokenization efforts within traditional finance. The pilot examines whether existing securities can be used onchain without changing their legal status. Participants include Mizuho Financial Group, Nomura Holdings, and blockchain developer Digital Asset. The project targets improved collateral mobility and faster settlement, with an emphasis on cross-border transactions. U.S. senators urge delay on crypto bill debate Sen. Tom Tillis called for more clarity on digital-asset legislation and asked Senate Banking Committee Chair Tim Scott to postpone scheduled consideration of the CLARITY Act. The request would shift the timeline from April to May while lawmakers work through unresolved issues, including provisions tied to stablecoins. The delay underscores continuing divisions in Washington, where efforts to build a comprehensive crypto framework face pushback from both traditional finance interests and digital-asset stakeholders. Related link: Kbank partners with Ripple for overseas blockchain remittance pilot