BTC Weekly: Week 12 (2026)
Key Events from March 15–21, 2026
SEC and CFTC Jointly Classify Bitcoin and 15 Other Crypto Assets as Digital Commodities
A 68-page joint interpretive release from the Securities and Exchange Commission and the Commodity Futures Trading Commission, published March 17, formally designates Bitcoin, Ether, Solana, and 13 other named crypto assets as digital commodities — not securities — under U.S. federal law. The release establishes a five-category taxonomy covering digital commodities, digital collectibles, digital tools, stablecoins, and digital securities, and explicitly places mining rewards, staking income, and airdrops outside the scope of securities law. The guidance carries immediate legal weight but requires enactment of the pending CLARITY Act to be codified as permanent statute.
Strategy Acquires 22,337 BTC for $1.57 Billion in Its Largest Single-Week 2026 Purchase
Strategy disclosed on March 17 that it acquired 22,337 BTC between March 9 and 15 at an average of $70,194 per coin, funded primarily through $1.18 billion in STRC perpetual preferred share sales and $396 million in Class A common equity. The purchase brings total holdings to 761,068 BTC — approximately 3.5% of the 21 million supply — at an average acquisition cost of $75,696 per coin. Executive chairman Michael Saylor disclosed the buy alongside a reported ₿16,622 in “Bitcoin Gain” for the period under the company’s new performance metric.
U.S. Spot Bitcoin ETFs Log $767 Million in Weekly Inflows, Extending a Three-Week Positive Streak
Seven consecutive days of net daily inflows through March 17 accumulated approximately $1.2 billion — the longest run since October 2025 — with BlackRock’s iShares Bitcoin Trust (IBIT) contributing $1,145.5 million of that total, including $169.3 million on March 17 alone. The week ending March 17 added $767 million in net inflows across all U.S. spot funds, bringing total net assets to $96.74 billion. The streak ended March 18 with $129.6 million in outflows, capping a three-week reversal of a multi-month outflow trend.
North Carolina Senate Bill Would Allow Up to 10% of State Public Funds to Be Held in Bitcoin
Senate Bill 327, the North Carolina Bitcoin Reserve and Investment Act, passed its first Senate reading on March 21 and was referred to the Rules and Operations Committee. Sponsored by Senators Johnson and Overcash, the bill would authorize the Office of the State Treasurer to allocate up to 10% of public funds to Bitcoin, held in cold storage with multi-signature authentication. Any disposal of the reserve would require approval from at least two-thirds of both legislative chambers; exploratory provisions for state Bitcoin mining as an accumulation method are also included.
American Bitcoin Surpasses Galaxy Digital in Corporate BTC Rankings With 6,899-Coin Treasury
American Bitcoin, the mining company co-founded by Eric Trump and Donald Trump Jr. through Hut 8 and operating under ticker ABTC, reported holdings of 6,899 BTC valued at approximately $463.75 million as of March 20, edging past Galaxy Digital’s 6,894 BTC to rank 16th among global corporate Bitcoin holders. The company has assembled its stack principally through mining operations using 11,298 ASIC machines purchased to accumulate Bitcoin below spot price at production cost.
Bitcoin Mining Difficulty Falls 7.76% in Second-Largest Downward Adjustment of 2026
Network difficulty adjusted to 133.79T at block 941,472 on March 21 — a 7.76% decline and the second-largest downward adjustment of the year — as global hashrate retreated to approximately 943 EH/s. The drop reflects sustained margin pressure at roughly $70,600 per BTC post-halving, elevated energy costs from geopolitical supply disruptions, and a documented shift by several large operators toward AI compute hosting contracts that offer more predictable returns. For miners remaining on the network, the lower difficulty improves per-hash revenue until the next adjustment, currently expected around mid-April.