#AltcoinSeasonLoading The cryptocurrency whales bought these altcoins in the second week of May 2025.

In summary.

Eth experienced a 373% increase in net whale inflow, as investors reacted to bullish catalysts such as the Pectra upgrade and Fed rates.

Apecoin saw a 13% increase with whale addresses holding 640,000 APE, the highest level since November 2022.

Polygon attracts whales with a purchase of 3.24 million tokens, signaling potential for a continued short-term rally.

The crypto market has seen a significant increase in trading activity this week, following the U.S. Fed's decision to keep interest rates stable. Amid the broader rally, on-chain data has revealed whale accumulation in several key altcoins.

Here are the top altcoins that cryptocurrency whales have been buying in the second week of May.

Ethereum.

The leading altcoin ETH has emerged as one of the assets that cryptocurrency whales have paid attention to this week. The altcoin has recovered 2,000 USD following the dovish stance of the Federal Reserve and the successful implementation of its Pectra upgrade.

These catalysts have helped restore bullish momentum, and ETH whales are taking advantage. According to IntoTheBlock, the netflow of large holders of the coin has increased by 374% in the last seven days.

A large holder refers to a wallet address that controls more than 0.1% of the circulating supply of an asset. Their netflow measures the balance between the coins flowing in and out of these wallets.

An increase in netflow indicates greater whale accumulation, a bullish signal that may prompt retail investors to follow suit.

In the case of ETH, the recent increase in netflow from large holders suggests growing confidence among major investors, which could help stabilize the price above 2,000 USD.