Bitcoin's largest wallet cohorts have returned to accumulation mode, with on-chain data pointing to renewed confidence among high-net-worth and institutional holders.
According to data from BitInfoCharts reported by Finbold, the number of Bitcoin addresses holding at least $1 million increased by 11,636 in August, a 10.4% rise from 111,846 at the end of July to 123,482. Wallets with balances above $10 million also grew 11.2%, from 14,009 to 15,584.
At the same time, on-chain researcher Amar Taha highlighted that wallets holding between 100 and 1,000 BTC added 73,300 BTC on a 60-day cumulative net basis as of Aug. 31, the fastest pace since April 21. Mega-whales with more than 10,000 BTC accumulated an additional 43,300 BTC over the same period.
The synchronized accumulation marks a contrast with the April–May period, when mid-sized whales bought aggressively while mega-whales offloaded roughly 40,000 BTC in mid-May. That divergence preceded a 25% decline in Bitcoin's price. The current alignment is therefore seen by some analysts as a more constructive setup, though they caution that on-chain data does not reveal the identity or intent of holders.
Part of the increase in millionaire wallets may reflect self-custody trends as investors move coins off exchanges, which can increase the number of large addresses without necessarily indicating fresh buying. Analysts also note that wealth concentration remains a risk: a relatively small number of addresses control a large share of Bitcoin's circulating supply, which could amplify volatility if large holders decide to act.
The accumulation has occurred amid relatively low volatility and growing institutional acceptance, including steady inflows into spot Bitcoin exchange-traded funds. For the broader crypto market, whale accumulation during a period of price stability is a potentially bullish signal, but it is not a standalone predictor of short-term price direction. Investors should monitor whether accumulation continues and whether it is accompanied by rising exchange outflows and higher trading volumes.
