⚡️ Friends, the explosive rise of altcoins: Has the bull market really returned? In recent days, Bitcoin has seen a slight rebound, but small-cap altcoins have staged a long-awaited surge. Some tokens with a circulating market cap of less than twenty million dollars have doubled in just a few days, or even approached ten times.

Is this bull market really back? I feel it is more like a structural game of existing capital after a significant shrinkage in market depth, rather than a signal of a new round of comprehensive expansion.

First, let's look at the big picture. According to the latest on-chain and market data, the total market capitalization of altcoins excluding BTC/ETH is currently around $700 billion, which has shrunk by nearly 40% from the peak at the end of 2024. After the halving of its size, liquidity has become extremely thin, and a small amount of capital can trigger noticeable price fluctuations. The threshold for controlling the market has significantly lowered, and prices are no longer solely driven by consensus but are more easily dominated by concentrated chips. This is not a steep discount but a natural phenomenon resulting from the systemic amplification of market fragility.

Take SIREN, a case that's been hot recently. At the end of March, it saw a sharp rally, only to experience a severe pullback due to on-chain analysis revealing that a few addresses might hold a significant amount of control. In extreme market conditions, small-cap assets can see funding rates annualized to -300% or even lower. Short sellers have to pay hefty fees to the longs every 8 hours, and if the price continues to climb, the liquidation mechanism will automatically buy in, further driving up prices, creating a classic short squeeze cycle. The fuel for this rise comes from the short's margin calls rather than new capital inflows; it resembles a precise consumption in a zero-sum game.

Looking at the cycle data: the current altcoin season index is around 35, with BTC dominance hovering between 57-59%. This structure is starkly different from the actual altcoin season in 2021 (index over 90, dominance below 40%). That phase was driven by macro liquidity flooding, retail FOMO, and massive expansion of stablecoins; now, however, Bitcoin season continues, with institutional funds still anchored in BTC and mainstream ETFs, and there's yet to be a clear rotation.

Solana, XRP, and other ETFs have seen some sporadic net inflows recently, but overall, we're still in a wait-and-see phase rather than a full-blown expansion. On-chain trading volumes occasionally spike, and while the buzz is real, excitement doesn't equate to growth; it's often just the rapid circulation of capital within the market.

The market is catching its breath. After a long period of adjustment, the overextension has created technical gaps, allowing a few prepared participants to execute strategies efficiently. But it also reminds us that the true bull market signal requires more conditions to resonate: a clear decline in BTC dominance, continuous influx of new capital, and broader fundamental improvements. The recent altcoin movements appear more like echoes against the backdrop of BTC stabilization rather than the main melody being played.

As a market observer, I've always believed that the crypto world ultimately rewards patience and rationality. Every profit corresponds to someone else’s loss. In times of thin liquidity, emotional swings are amplified, and we need to distinguish who is working for whom. A bull market will certainly return, but it likely won't make a quiet entrance with localized spikes like this.