Cardano (ADA) has seen a sharp increase in market dominance, rising 5.63% in the last 24 hours, bringing its market share to 0.9%. This growth reflects strong investor interest, particularly in ADA's long-term growth, with a 74.79% increase in 6 months and 80.61% over 5 years. Key factors include network upgrades like the Valentine update and growing institutional interest in Ethereum competitors. ADA's dominance could signal the start of an altcoin season, where funds flow from Bitcoin to top altcoins.