Solana ($SOL) is retesting its ascending trendline between $185 and $190, with potential to reach the $220 resistance level. Grayscale has identified $SOL as undervalued, highlighting its robust on-chain activity, scalability, and institutional holdings accounting for 2.5% of the total supply. Technical indicators show the trendline has been a reliable support, and a breakout above $220 could propel $SOL to $240–$260. Analysts are watching price action and volume for signs of a bullish continuation.