#Bitcoin whales are accumulating fast wallets holding 1,000–10,000 BTC added 16,000 coins during the recent dip, echoing August's rebound pattern.

This could hint at a local bottom as retail investors exit.

Meanwhile, a major $BTC whale sold 2,970 BTC ($337M) and shifted heavily into Ethereum, opening $577M in $ETH longs and buying $215M worth on spot signaling strong ETH bullish sentiment.

They know how much up they can rise.