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Michael Saylor announced on Monday that Strategy had carried out another massive Bitcoin buy. The multi-billion-dollar Bitcoin purchase did not come as a surprise to the market, given that the company had already been raising more money to buy BTC leading up to the day.

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The KelpDAO exploiter moved 75,700 ETH (approximately $175 million) across two new wallet addresses on April 21, 2026. This happened just hours after Arbitrum's Security Council announced that froze 30,766 ETH linked to the same hack. Meanwhile, this suggests the attacker is actively trying to stay ahead of recovery efforts.

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Zcash and Bitcoin share some important similarities in their supply policies. Zcash offers privacy features, which is out of reach for Bitcoin.

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U.S.-listed spot altcoin ETFs continued to attract fresh capital on April 20, with inflows once again clustering around a narrow set of products tied to XRP (XRP) and Solana (SOL) while most other altcoin funds remained flat—underscoring a growing 'concentration' trend in the still-young segment. According to data compiled by SosoValue, spot XRP ETFs posted a net inflow of $3.0 million on Sunday ET, extending their streak to seven consecutive trading sessions of net additions dating back to April 10.