Global storage chip frenzy, A-share sector leads strong gains

1、 A-shares explode across the board, with multiple stocks reaching historic highs

On May 6th, the A-share storage chip sector opened strongly, and the influx of funds drove individual stocks to collectively rise. As of the close, over 80% of the stocks in the sector have achieved gains, with more than 10 companies hitting the daily limit up, indicating a significant profit effect. Among them, Demingli quickly closed the daily limit up in early trading, with a closing price of 577.29 yuan. The stock price hit a new historical high during the trading session, and the net inflow of main funds exceeded 700 million yuan; Jiang Bolong also performed outstandingly, closing up 20% and successfully hitting the "20CM" daily limit up, with the stock price synchronously breaking historical records.

In addition, Yingxin Development steadily blocked the daily limit up, with stocks such as Langke Technology and Dapuwei rising by over 19%, and core stocks such as Baiwei Storage and Lanqi Technology rising by over 10%. Overall, the A-share storage chip sector saw a daily increase of over 6%, with significantly larger transaction amounts, becoming the strongest main line in the market on that day. More than 100 concept stocks had a total market value of over 6.2 trillion yuan, and since the beginning of the year, 24 individual stocks have risen by over 50%.

2、 Overseas giants collectively soar, global market resonance strengthens

The strong performance of A-shares cannot be separated from the coordinated outbreak of overseas storage giants. During the May Day holiday, the global storage chip market has already warmed up in advance, and the increase on May 6th further expanded. In the South Korean market, storage chip leader SK Hynix surged 12.52%, with its stock price breaking through 1.6 million Korean won during trading, setting a new historical high with a cumulative increase of over 145% this year; Samsung Electronics rose sharply in sync, and its stock price also broke historical records, with a market value exceeding 160 trillion Korean won.

The US stock market has reached a historic moment, with overnight storage chip giants collectively soaring. SanDisk surged 11.98%, with a market value exceeding $200 billion and a year-on-year increase of over 492%; Micron Technology surged 11.06%, closing at $640.2, with a market value exceeding $720 billion, setting a new historical high. In addition, companies such as Western Digital and Seagate Technology have also risen sharply, forming a resonance upward pattern of "Korean stocks+US stocks+A-shares" in the global storage chip market.

3、 AI demand triggers super cycle, supply and demand imbalance supports high prosperity

The global surge in storage chips this time is driven by the structural supply-demand imbalance brought about by the wave of AI computing power, and the industry has officially begun a "super cycle" that lasts for 2-3 years. On the demand side, the iteration of AI big models and the implementation of multimodal applications have driven an explosion in demand for AI servers, with a single eight card AI server requiring far more storage than traditional servers. Tech giants such as Google, Amazon, and Meta have all increased their capital expenditures, with Google alone raising its 2026 capital expenditures to $180-190 billion, all of which will be used for AI data center construction, directly driving exponential growth in demand for storage chips.

On the supply side, the expansion cycle of storage chips is as long as 18-24 months, and the release of production capacity seriously lags behind the growth of demand. Micron plans to invest $35 billion to build five new wafer fabs, but production capacity will not be released until 2028 at the earliest. As the supply-demand gap continues to widen, storage prices continue to rise. Counterpoint data shows that storage prices increased by 50% -55% month on month in the first quarter, and are expected to further increase by 80% -85% in the second quarter. The rise in prices has driven a concentrated outbreak of corporate performance. In the first quarter of 2026, Demingli's revenue increased by over 500% year-on-year, while Jiangbolong's grew by 132.79%, all achieving a turnaround from losses to profits. The realization of performance further boosted the valuation of the sector.