Bitcoin’s Newer Whale Cohort Reaches 33.06% of Combined Realized Cap

On Oct. 15, addresses in Bitcoin’s newer whale cohort represented 33.06% of combined realized cap for the two tracked groups, while their estimated cost basis had recovered to about $77,000 after a late-August decline.

The newer cohort’s realized-cap value was $78.61 billion, compared with $159.15 billion for older whales. Its share was roughly 18% earlier in 2026. Since September, the newer group’s measure has risen while the older cohort’s figure has remained broadly stable.

The labels describe groups of addresses classified by the age of their on-chain outputs. To qualify for the newer cohort, an address must hold more than 1,000 BTC, with its unspent outputs averaging less than 155 days old. Addresses identified as exchanges or miners are excluded. The older cohort uses the same balance threshold, with an average output age of 155 days or more.

This split compares realized value between two address groups; it does not count wallets or measure how much Bitcoin the groups hold. The exchange and miner exclusions also mean the figures cover a defined set of large addresses, not every large Bitcoin holder. The categories do not identify individual investors or institutions.

The newer group’s estimated cost basis was near $110,000 around the previous market peak. It fell to about $68,000 in late August before returning to roughly $77,000. The figures describe an aggregate estimate for the cohort rather than separate prices for individual addresses.

Realized cap assigns each unspent output the Bitcoin price recorded when that output was created. This keeps a record of historical on-chain value instead of repricing all BTC at the current market price. The $78.61 billion reading therefore reflects the cohort’s realized value, not the current market value of its holdings.

That distinction limits what the rising share shows. It is not the newer cohort’s share of Bitcoin supply, and it does not establish that an equivalent amount of fresh capital entered the market. Coins can move between addresses, and changes in cohort membership can shift the recorded value between groups. Growth in realized cap alone does not demonstrate an equal amount of new investment.