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Altcoin Season Imminent: June Poised for a 2021-Style Crypto Explosion

Altcoin Season Imminent: June Poised for a 2021-Style Crypto Explosion

Author:
Ambcrypto
Published:
2025-06-13 00:30:32
4
1

Brace for impact—altcoins are gearing up for a historic rally reminiscent of 2021’s bull run. Market signals suggest June could be the month where everything flips.

Why now? The stars are aligning: Bitcoin dominance wobbles, liquidity floods back, and retail FOMO lurks just offstage. Remember what happened last time these conditions met? Exactly.

The setup: A textbook altcoin season requires three ingredients—BTC stability, Ethereum outperforming, and small caps going parabolic. Check, check, and pending.

Watch the dominoes: When mid-cap alts like SOL and ADA start outpacing ETH, the money printer goes brrr for microcaps. That’s when the real fun begins.

The cynical take: Wall Street’s still trying to short crypto ETFs while degens front-run them with leverage. Some things never change—except your portfolio balance.

Here’s what’s delaying the altseason

Per Alphractal, combining the Altcoin Season Index (blue line) and Bitcoin price (yellow line) on a weekly timeframe provides insight into why altcoins have yet to record major gains.

Altcoin season index chart.

Source: Alphractal

One major finding is that altcoin seasons tend to begin when bitcoin shows signs of weakness after a major rally—that’s when its price starts to range.

Similarly, altseason occurs when Bitcoin falls significantly or hits historical lows.

However, the first scenario tends to have a greater impact, with about 80% of altcoins surging. In the second scenario, altcoin rallies are typically minimal, or they simply don’t lose as much value as Bitcoin during a drop.

Now is the time to accumulate altcoins

The market is currently in a more defined accumulation zone.

According to the above chart, whenever the Altseason line drops into the green box—called Bitcoin Season—a major altcoin MOVE tends to follow within a three-month period.

Altcoins tend to be highly volatile during this market phase, often rallying or declining more sharply, depending on Bitcoin’s movement.

Historically, since the 2022 altseason, rallies have begun in June, suggesting that another one could be on the horizon this year as well.

Altcoin season index chart.

Source: Alphractal

Importantly, some altcoins have already begun this upward movement, with 23% of them outperforming Bitcoin over the past three months.

However, there’s a strong possibility that the upcoming altseason will remain minimal. Since 2019, the market has only recorded outsized gains once, in 2021.

Aside from that, altseason movements have been relatively muted.

Altcoin season index chart.

Source: Alphractal

If this pattern repeats, the next altseason may also lack a major rally.

Altseason could be muted — unless liquidity shifts again

Liquidity inflows into the ecosystem could support a potential rally. In the first quarter of the year, $3.8 billion in funding entered the space.

This marked the highest level since mid-2022, although capital inflows have slowed in the second quarter.

Source: Alphractal

Notably, during a period of high capital inflow in 2019, the market experienced a significant altseason rally. A similar setup could play out again.

While the market largely remains on the sidelines, recent confluences suggest that conditions are aligning for an altseason to begin soon.

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