Historical Data Shows September Losses After August Gains for Ether
Ether (ETH) has gained over 25% in August, but history suggests a potential pullback in September. Since 2016, whenever Ether posted strong August rallies, it was followed by a negative performance in September, according to data from CoinGlass.

At the time of writing, ETH is trading around $4,759, up nearly $952 from its August 1 price of $3,807. The asset touched fresh highs above $4,867 on Friday, boosted by dovish signals from Federal Reserve Chair Jerome Powell during the Jackson Hole symposium, which hinted at a possible rate cut next month.

Why History Signals Caution for September
Historical analysis reveals that September has been one of Ether’s weakest months, with an average loss of 6.42% since 2016. The pattern is notable:
- 2017: ETH gained 92.86% in August, then dropped 21.65% in September.
- 2020: ETH rose 25.32% in August, followed by a 17.08% decline in September.
- 2021: ETH surged 35.62% in August, then slipped 12.55% the next month.
Crypto trader CryptoGoos commented on X, “ETH seasonality in September during post-halving years is typically negative. Will this time be different?”
Why This Year Might Be Different
Despite the bearish seasonal pattern, market dynamics in 2025 differ from previous cycles. Spot Ether ETFs recorded approximately $2.79 billion in net inflows in August, compared to $1.2 billion outflows from Bitcoin ETFs, per Farside data. This shift indicates rising institutional demand for ETH.
Additionally, corporate Ether holdings surpassed $13 billion on Aug. 11, marking a significant milestone. Blockchain firm Arkham reported that BitMine’s chairman Tom Lee purchased $45 million worth of ETH, pushing the company’s total holdings to $7 billion.
Bitcoin dominance has also fallen 5.88% in the past 30 days, signaling capital rotation into altcoins, including Ether.
While historical trends warn of a September correction, the influx of ETF investments and corporate holdings could challenge past patterns. If demand continues at its current pace, Ether could defy seasonal weakness and maintain its bullish momentum into Q4.
Disclaimer
This content is for informational purposes only and does not constitute financial, investment, or legal advice. Cryptocurrency trading involves risk and may result in financial loss.