ALA is trading 18.68% higher at $17.53, with semiconductor-sector momentum and its leveraged exposure to Astera Labs providing the clearest context for the move. - The ETF targets twice Astera Labs’ daily performance; the stock was indicated higher premarket as AI-chip optimism supported semiconductor shares. - Astera Labs closed up 3.43% on October 5 and was up 2.57% premarket on October 6. - No specific ALA or Astera Labs announcement explaining the sharp move was identified. Broader market indexes were also higher.