Market sentiment has shifted noticeably, with capital rotating away from smaller cryptocurrencies as risk appetite cools. Recent data from major market participants reveals a telling pattern: altcoin rally cycles in 2025 have compressed dramatically, with the median duration now hovering around 20 days—significantly shorter than historical averages. Meanwhile, open interest in altcoin futures markets is showing corresponding adjustments. This compression suggests traders are taking profits faster and holding positions for shorter timeframes, reflecting the cautious stance dominating current market dynamics. For anyone tracking altcoin performance, these shorter windows mean tighter trading windows and increased volatility during rallies.