3 Reasons Why Ethereum Price Could Peak in Its Weakest Month

September has historically been the weakest month for Ethereum, with median returns showing losses of more than 12%. This year’s September started no differently. ETF outflows and broader market hesitation kept the Ethereum price under pressure in the opening week.

However, September 2025 might not follow history so neatly. Three bullish signs have emerged that could flip the script and push the Ethereum price toward new highs, in its historically weakest month. Well, that would be such an anti-climax.

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Whales Buy Big as Weak Hands Exit

At press time, Ethereum trades near $4,406. Just this week, ETH touched lows of $4,261 but quickly regained ground.

Over the past 24 hours, the ETH price has remained mostly flat, showing no signs of a possible breakout on paper. Yet, whales have aggressively accumulated. The supply held by whale wallets outside exchanges increased from 95.72 million ETH to 99.41 million ETH in under a day. That represents a net pickup of 3.69 million ETH, valued at over $16 billion at current prices.

Ethereum Whales Add Millions In ETH: Santiment

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Such large inflows from whales suggest confidence. While retail traders may hesitate, whales appear to be positioning for a rally.

But whale buys can meet resistance if retail, especially the short-term holders, sell. Well, that seems to have been taken care of, too. Their buying coincides with weak hands exiting.