Popular Dutch crypto analyst Michael van de Poppe has tweeted that September has historically been a terrible month for the crypto market in general and altcoins in particular. The tweet came after a largely bearish September overall for the digital asset market, with only BTC reporting minimal losses. The rest of the altcoin field is reeling from major downward price movements and may be looking towards October with hope and desperation.
Q4 to be Great for Altcoins: Van De Poppe
Van de Poppe is a popular cryptocurrency analyst known for providing fundamentally strong signals based on historical data.
“The markets always have a correction in September / October.
Historically, Q4 and Q1 are a great period for #Altcoins.
September is a terrible month, and that’s what we’ve seen with $ETH, it’s down nearly 10%.
 
Q4 is almost always positive, Q1 is the best quarter in the history.”
His analysis is primarily based on the price of Ethereum. The promise is that Ethereum is a market maker for the rest of the altcoin market. The remaining altcoins have largely followed its lead historically. However, that may no longer be the case.
Twitterati Responds
The Twitter community responded to de Poppe’s analysis with predictions and memes of their own. One user replied:
“So basically, September is that one friend who always ruins the vibe.”
A crestfallen user tweeted in frustration:
“2025 has been the worst bull market for crypto. There have been just 3 months of gains so far, while real bull market years get at least 7 green months”
A user by the name of Crypto Cook believed:
“Every September people panic. Every Q4 they FOMO back in. Same story, different year”
The Future
Ethereum is under pressure at the end of September, having incurred around a 20% loss over the last 30 days or so, dating back to the last week of August. However, as de Poppe points out, October is exceptionally bullish for Ethereum, and it may start to revive itself promptly by the start of next month.
Even if Ethereum recovers, there is no guarantee that the altcoin market will follow suit and enter bullish territory. Lately, secondary cryptocurrencies have increasingly followed Solana, rather than Ethereum itself. Is this a new trend unfolding in front of our eyes? Only time can tell.