Ark Invest's Q1 2026 Bitcoin Quarterly Report reveals a significant increase in Bitcoin holdings by long-term investors, with "strong hands" accumulating 3.6 million BTC, up from 2.13 million. This 69% rise marks the highest level of sustained holdings since 2020. The accumulation occurred amid a 22% decline in Bitcoin's price, particularly during February's low. The report also highlights a shift in the profitability of Bitcoin supply. The percentage of profitable BTC supply fell from about 78% in mid-January to around 50% in early February, before slightly recovering. Despite this fluctuation, the unprofitable supply never surpassed the profitable supply, indicating resilience among long-term holders.