If you’ve spent any time in crypto, you’ve heard the term “altcoin season” or “alt season.” It’s when smaller cryptocurrencies dramatically outperform Bitcoin, sometimes delivering returns that make Bitcoin’s gains look modest.
But alt season doesn’t happen randomly. There’s a pattern to it, and understanding that pattern can help you position yourself before the crowd catches on.
Altcoin season is a period where alternative cryptocurrencies, meaning everything that isn’t Bitcoin, significantly outperform BTC. During these phases, altcoins rise faster than Bitcoin in percentage terms. Bitcoin dominance, which is BTC’s share of total crypto market cap, declines. New projects and tokens gain massive attention. Trading volume shifts from BTC pairs to altcoin pairs. Social media explodes with people showing off altcoin gains.
The opposite, when Bitcoin outperforms most altcoins, is sometimes called “Bitcoin season.”
Crypto bull markets tend to follow a fairly predictable rotation. The bull market starts with Bitcoin. Institutional money, ETF flows, and the halving narrative drive BTC first. Bitcoin dominance rises as money flows into the “safest” crypto asset. This can last weeks to months.
Once Bitcoin has made a significant move and starts consolidating, profits rotate into large-cap altcoins like Ethereum, Solana, Cardano, and Chainlink. These are seen as the “next safest” bet. They have real ecosystems, development teams, and use cases. This phase also lasts weeks to months.
Then comes the interesting part. Money rotates further down the risk curve into smaller projects. Tokens with lower market caps can move 5-10x in days. This is when you see coins you’ve never heard of suddenly trending on social media. This phase is typically shorter and more volatile, lasting just weeks.
The final stage is pure speculation. Meme coins, joke tokens, and brand-new projects with no track record pump on hype alone. This is the euphoria phase, and it usually signals the cycle is getting long in the tooth. When your social media feed is full of dog-themed tokens doing 100x, the end is likely closer than the beginning. This phase lasts days to weeks before correction.
The clearest indicator of alt season is Bitcoin dominance declining. When Bitcoin dominance, measured as BTC market cap divided by total crypto market cap, starts falling from elevated levels, capital is rotating into altcoins. You can track this on any major crypto data site.
Alt season typically begins when Bitcoin pauses after a strong rally. BTC stops making new highs and trades sideways. Traders get impatient and look for higher returns elsewhere.
The ETH/BTC ratio rising is often the first sign of alt season. Ethereum tends to be the gateway. Once it starts outperforming Bitcoin, smaller altcoins usually follow. When trading volumes on altcoin pairs surge relative to BTC pairs, money is actively rotating.
When crypto Twitter conversations shift from Bitcoin price analysis to altcoin picks and “hidden gems,” the rotation is underway.
The most dramatic alt season in crypto history happened in 2017 during the ICO boom. Initial Coin Offerings launched thousands of new tokens. Ethereum rose from around $8 to around $1,400. Many altcoins did 50-100x. Most subsequently lost 90-99% in the bear market.
In 2021, altcoins exploded with the DeFi and NFT narratives. Solana went from $1.50 to $260. Avalanche, Luna, and dozens of DeFi tokens posted enormous gains. Meme coins like SHIB delivered life-changing returns for early buyers.
Each cycle has its defining narratives. Recent cycles have seen money flow into AI-related tokens, Real World Asset tokenisation projects, and Layer 2 scaling solutions.
Each alt season has dominant themes. Smart investors identify these narratives early. Layer 1 blockchains compete with Ethereum, like Solana, Sui, and Avalanche. Layer 2 scaling solutions make Ethereum cheaper and faster, like Arbitrum, Optimism, and Base. DeFi covers decentralised lending, trading, and yield protocols. AI plus crypto combines artificial intelligence with blockchain. Real World Assets tokenise traditional assets like property, bonds, and commodities. Gaming and metaverse create blockchain-based games with tradeable assets. Meme coins are pure speculation, but they generate massive volume.
Take profits progressively. Don’t wait for the perfect top. Sell in stages as your positions rise. Stick to quality. Focus on projects with real teams, real products, and real usage. They have the best chance of surviving the bear market. Set targets before you enter. Decide at what price you’ll take profits. Emotion is your worst enemy.
Keep some Bitcoin. BTC is your anchor. It falls less in bear markets and recovers fastest. Track Bitcoin dominance. When it starts rising sharply from low levels, alt season may be ending.
Don’t chase pumps. If you’re hearing about a token because it’s already up 500%, you’re probably late. Don’t go all-in on small caps. Diversify across market cap sizes. Don’t use excessive leverage. Leverage amplifies gains and losses. In volatile alt season conditions, liquidation can happen in minutes.
Don’t hold everything through the top. “I’ll sell when it goes higher” is how people turn massive gains into losses. Don’t ignore the macro environment. Alt season doesn’t override macro headwinds. If liquidity is tightening and rates are rising, even alt season can be cut short.
Alt season is when altcoins outperform Bitcoin. It typically follows BTC consolidation after a big rally. The rotation goes: Bitcoin, then large-cap alts, then mid and small caps, then meme coins. Watch Bitcoin dominance, ETH/BTC ratio, and trading volumes for signals. Each cycle has dominant narratives. Identify them early. Take profits progressively and never go all-in on speculative positions.
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