Recently, I’ve been looking into memory chips and found that many people don’t understand how to properly position themselves. The concept stocks related to memory are actually quite straightforward, but choosing the wrong direction can lead to severe losses.

The memory industry is divided into three layers, each with completely different characteristics. The upstream layer consists of chip manufacturers like Nanya Technology and Winbond, which directly produce DRAM and Flash. When the market is good, their stock prices surge the most, but during downturns, they also fall the deepest. The middle layer includes companies like Phison and Adata that control ICs and modules; their profits are relatively stable because they hold a moat in software integration. The top layer comprises global giants like Micron, Samsung, and SK Hynix, which dominate the market pricing power.

Speaking of Micron concept stocks, Micron Technology is the most flexible stock in U.S. memory stocks. This company produces both DRAM and NAND, and as HBM capacity continues to expand, memory prices are entering an upward cycle, with overall profits clearly recovering. I recently reviewed their financial reports—revenue and net profit both hit new highs, with further upside potential.

The global memory market is essentially controlled by three players. Samsung Electronics has the largest market value, with nearly 45% DRAM market share. SK Hynix ranks second, especially leading in high-end areas like HBM. Micron ranks third but has the fastest growth rate. These three together monopolize over 94% of the global DRAM market, so their decisions largely determine the entire industry’s price cycle.

Why are memory stocks so volatile? Because it’s a perpetual cycle: shortage → expansion → oversupply → price collapse → cutback → shortage again. This cycle repeats every few years. Currently, Nomura Securities’ latest forecast predicts that in Q2 this year, DRAM and NAND prices will increase by 51% and 50% quarter-over-quarter, respectively, much higher than their previous estimates of 6% and 20%.

There are also many opportunities in Taiwan stocks. Nanya Technology is one of the few Taiwanese listed companies focused solely on DRAM; their customized AI memory is already contributing to revenue. Winbond mainly produces niche DRAM and NOR Flash, avoiding the price wars common in general-purpose DRAM, so their profits are relatively stable. Phison is the company with the highest purity in NAND Flash; currently, the NAND supply gap is close to 20%, making it difficult to change the supply-demand imbalance in the short term.

The core logic behind Micron concept stocks is: you profit from the rhythm of the industry cycle, not from the company’s own growth. Unlike AI stocks, which are driven by structural long-term trends, memory stocks are purely cyclical trading assets. The current question is, since memory stocks have already risen for a while, how much more can they go?

My view is that memory prices are still on the rise, and the tight supply situation is unlikely to ease in the short term, so related manufacturing and module stocks still have upward momentum. But if you have a lower risk tolerance, you might wait until memory stocks fall sharply before entering, because the cyclical nature of these stocks means they tend to fall deeply during downturns, and the industry’s bottom is often the best entry point.

To judge when to enter, you can watch for three signals. First, a halt in DRAM price declines, which is the most important indicator of an industry turnaround. Second, leading manufacturers start reducing production; although Samsung, SK Hynix, and Micron have seen explosive earnings this year, they have all slowed capital expenditures. Third, inventory levels decrease; currently, global memory manufacturers’ inventories are at historic lows, with some major companies holding only about four weeks’ worth of stock, indicating that prices are more likely to rise than fall.

In summary, memory stocks are not stable growth stocks but cyclical trading assets. Your goal isn’t to find companies to hold forever but to assess where the industry cycle currently stands. The memory stocks that plunged deeply last cycle have become big winners this time due to the AI supply gap. So if you’re optimistic about Micron concept stocks and the entire memory industry, you can start practicing with a demo account—observe DRAM contract price trends, track major manufacturers’ financial reports and capital expenditure plans, and once you have a clearer grasp of the cycle, then consider real trading with small capital.