GUANGZHOU, CHINA - NOVEMBER 10: In this photo illustration, storage chip manufacturer SanDisk is displayed on a smartphone screen on November 10, 2025 in Guangzhou, Guangdong Province of China. (Photo by Qin Zihang/VCG via Getty Images)VCG via Getty ImagesSanDisk (SNDK)’s stock jumped over 300%, in three months, driven by consistent revenue increases as well as a significant change in investor outlook. An outstanding earnings surprise, entrance into the S&P 500, and excitement surrounding innovation and dem ...