Core Viewpoint - Western Digital Corporation (WDC) will be added to the Nasdaq 100 Index on December 22, which is expected to positively impact its stock due to increased visibility and investment from index-tracking funds [1]. Company Overview - Western Digital, based in San Jose, California, is a leading manufacturer of data storage products, including hard disk drives (HDDs), solid-state drives (SSDs), and flash memory devices, serving home users, companies, and large data centers [3]. - The company was founded in 1970 and has a market capitalization of $59.8 billion [4]. Financial Performance - In the first quarter of fiscal 2026, Western Digital reported a revenue increase of 27% year-over-year (YOY) to $2.82 billion, surpassing Wall Street's expectations of $2.72 billion [8]. - The company is increasingly focused on cloud infrastructure, with 89% of its revenue coming from cloud services in Q1, up from 86% in the same period last year [9]. Stock Performance - Western Digital's stock has experienced significant gains, with a 267.24% increase over the past 52 weeks and a 195.67% increase over the past six months, compared to the broader Technology Select Sector SPDR Fund (XLK), which gained 21.89% and 17.16% in the same periods [5]. - The stock reached a 52-week high of $188.77 on December 11 but has since declined by 7.86% from that peak [6].