Review of the protagonist behind "Making 30 Million Yuan Trading ByteDance Stocks": Hard disk price hikes and ByteDance's shortened data lifecycle are key signals prompting him to take a heavy position in the storage track.

Leto Bao, the central figure in the "ByteDance employee nets 30 million yuan from stock trading" story, reviewed his U.S. stock investment experience on Binance Square, noting that his key investment judgments stemmed from observations of shifts in AI storage demand. Bao stated that around August last year, he shifted his investment style to value investing, allocating most of his positions to indices—particularly the Nasdaq 100—with a portion of his portfolio invested in individual stocks he selected, such as Google. At the time, he purchased two hard drives on Pinduoduo to build a database for backtesting investment strategies using quantitative methods, and soon noticed that hard drive prices were rising steadily. He said the hard drive price increase served as his first signal to focus on the storage sector. At that time, reports had already pointed to AI-driven memory price hikes, and hard drive prices were rising in tandem. The second signal came from his experience as a data engineer: ByteDance was then requiring teams to shorten data lifecycles—reducing data storage periods, for example, from two to three years to one or half a year—and delete redundant data due to insufficient storage resources. Based on the hard drive price hikes, AI storage demand, and research report analysis, Bao initially bought some related assets but did not take large positions, as he had not yet seen concrete confirmation signals. Later, he discovered via 13F institutional holdings filings that institutions had been increasing their positions in the sector for three consecutive quarters, prompting him to expand his holdings, which he has maintained to date. He added that he still holds his storage-related positions and has generated significant returns.