Michael Berry, the prototype of "The Big Short", is short on memory stocks and doubles down on Micron.

In his latest trading post, well-known investor Michael Burry, the prototype of the movie "The Big Short", quoted Acer Chairman and CEO Chen Junsheng, and further stated that the memory manufacturer's stock price has risen to "ridiculous prices" and that once the business cycle reverses, there may be a violent sell-off. He has also increased his short position on Micron Technology.

Berry told Substack subscribers that he prefers companies that provide equipment or services to the chip industry over memory makers, saying of those memory makers: "The stock prices have really gone up to ridiculous levels on their terms, and in another phase of the cycle, the stock prices would have fallen significantly."

Acer Chairman and CEO Chen Junsheng said on the 19th that memory components such as DDR4 and DDR5 will not be out of stock as the supply increases. Memory products such as DDRX and DDR5X are still relatively out of stock, but the demand is relatively small. As China's memory production capacity continues to increase, Acer's average cost of memory is expected to drop in 2027 compared with this year. He believes that there is no overall memory shortage problem.

Berry said comments like these were made before memory stocks rebounded, making them difficult to interpret in retrospect, but he added that they were consistent with his own views.

"Stocktwits" reported that Berry recently revealed that it has further shorted Micron, AI infrastructure player Nebius, iShares Semiconductor ETF (SOXX), and Palantir put options expiring in 2027, and described this new wave of short positions as "certain scale."