Week 12 · 2026

Bitcoin News: March 17-21

Record ETF inflows, Bitcoin Core 28.0 release, Japan removes corporate tax on unrealized Bitcoin gains, and Lightning Network hits new capacity milestone.

Market Snapshot

Price (start)

$83,200

Price (end)

$86,400

Weekly Change

+3.8%

BTC Dominance

54.2%

Hash Rate

612 EH/s

LN Capacity

5,523 BTC

Top Stories

adoptionBloomberg

Bitcoin ETF Weekly Inflows Hit $2 Billion Record

Spot Bitcoin ETFs recorded their highest weekly inflows since approval, with BlackRock's IBIT leading at $1.2 billion. Total assets under management across all spot Bitcoin ETFs now exceed $120 billion. The sustained institutional demand is being driven by pension fund allocations and corporate treasury diversification strategies that have accelerated in Q1 2026.

technicalBitcoin Optech

Bitcoin Core 28.0 Released with Enhanced Privacy Features

The latest Bitcoin Core release includes improvements to transaction relay privacy, mempool management, and peer-to-peer networking. The update also introduces preliminary support for Stratum V2 mining protocol integration, which improves decentralization of block template construction by giving individual miners more control over transaction selection.

regulatoryCoinDesk

Japan Exempts Unrealized Bitcoin Gains from Corporate Tax

Japan's Ministry of Finance announced that corporations holding Bitcoin as a long-term investment will no longer be taxed on unrealized gains, aligning crypto tax treatment with that of stocks and bonds. The policy change, effective April 2026, is expected to encourage Japanese corporations to add Bitcoin to their balance sheets.

technicalMempool.space

Lightning Network Capacity Exceeds 5,500 BTC

The Lightning Network reached a new milestone with public channel capacity surpassing 5,500 BTC. The growth is driven by increased merchant adoption through BTCPay Server, exchange integrations (Kraken, Coinbase, Binance), and improved wallet experiences from Phoenix and Breez. Private channel capacity is estimated to be significantly higher.

adoptionMicroStrategy IR

MicroStrategy Acquires Additional 3,000 BTC

MicroStrategy announced the purchase of 3,000 more Bitcoin for approximately $255 million, bringing its total holdings to over 220,000 BTC. The company continues its strategy of using corporate cash flows and convertible note offerings to accumulate Bitcoin as a primary treasury reserve asset.

Discussion Questions

  • Will sustained ETF inflows create a supply squeeze given Bitcoin's fixed supply? What happens when ETF demand outpaces miner selling?
  • How significant is Japan's corporate tax exemption for unrealized Bitcoin gains? Could other countries follow?
  • Bitcoin Core 28.0's Stratum V2 support aims to decentralize mining. Is mining pool centralization a growing concern?