Bitcoin has set up the best-ever major analysts to predict that the biggest altcoin season ever could be on the horizon.
Their argument is based on the capital flow cycle and historical behavior of the crypto market. Analysts believe that Bitcoin’s excitement will soon spread to altcoins. This article categorizes the key factors behind that belief.
Why are you hoping for the biggest Altcoin season ever?
Analyst WIMAR.X highlights one key element. Historically, each altcoin season tends to begin approximately 380 days after the Bitcoin Harving event.
The latest half occurred in April 2024. Based on this timeline, AltSeason could begin in May 2025.
“The biggest alto season in history begins on May 25th… Altcoins’ market capitalization will reach $15 trillion this cycle,” predicts Wimar.X.
Wimar.x also points out another typical trigger for the Altcoin season. Often, Bitcoin starts after reaching a new all-time high (ATH), then enters a stabilization or slight correction phase. During this period, Bitcoin domination (BTC.D) tends to decline. That’s when capital began to flow from Bitcoin to altcoins, driving their surge.
BTC’s control measures Bitcoin’s market capitalization compared to total crypto market capitalization. Recent data show that BTC.D fell from 65.4% to a lowest value of 62%, stabilizing around 63.7%.
“The crypto market runs in cycles. This is the only consistent pattern of each year. And when it comes to AltSeason, the formula is simple. Bitcoin domination is a drop + Bitcoin price stop or rise = Altcoins pump. This is the undeniable truth of the crypto market.”
Carl Moon – the founder of Moonshaw – shares the same view.
“Bitcoin’s dominance is declining! The Altcoin season is imminent!” declared Carl Moon.
Another supporter is the historic performance of Crypto Market in the second quarter (second quarter). Coinglass data shows that Q2 is typically one of the most powerful quarters in both Bitcoin and Ethereum.

Specifically, Bitcoin provided an average second quarter return of around 26.89%. Ethereum performs even better, with an average return of 66.8%. Similar returns are expected as Altcoins often follow Ethereum’s trends. With Q2 going on in 2025, this may be the perfect window for Altcoins to break out.
However, not all signals are completely positive. According to Blockchain Center, the Altcoin season’s index fell to 13 lowest points, 13 points, when Bitcoin hit a new ATH. It rose to just 18 at the time of writing.

This index measures how well the top 100 altcoins have worked against Bitcoin over the past 90 days. If 75% of them are better than Bitcoin, the market is considered in AltSeason. Despite optimistic outlook, recent declines suggest that Altcoins is not yet leading the market.
This raises an important question. Is Altseason still following a historic pattern, or should investors wait more before capital moves from Bitcoin to Altcoins?
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