In the Memory Chip Super Cycle, Buy Individual Stocks or ETFs?

TradingKey - The memory chip market in the first quarter of 2026 is undergoing a once-in-three-decades supercycle. DRAM contract prices have surged by over 90% quarter-on-quarter, while NAND prices have risen by more than 50%. For the first time, Microsoft and Google have signed three-year long-term agreements with memory manufacturers, willing to prepay 10%-30% in deposits. Samsung's quarterly profits reached record highs, and SK Hynix shares jumped nearly 15% in a single day. Amidst this market frenzy, the primary concern for retail investors is: should they buy individual stocks directly or diversify through ETFs?

I. Micron, SK Hynix, and Samsung: Which Is the Better Investment?

Currently, there are three storage stocks attracting the most attention: Micron (MU), SK Hynix, and Samsung Electronics.

🟢 Micron Technology (MU): The only pure-play DRAM giant in the US market

• Stock Price & Market Cap: Approximately $406, with a total market capitalization of about $458.7 billion
• Latest Performance: Single-quarter revenue reached $23.86 billion, skyrocketing 196% year-over-year, marking the strongest profitability on record
• Highlights: Secured five-year strategic customer agreements; several brokerages set a price target of $538
• Advantages: Strong liquidity, transparent financial reporting, and convenient direct trading in the US market
• Weaknesses: Projected market share for next-generation HBM4 is only 18%, trailing SK Hynix in technological roadmap

🔵 SK Hynix: Leader in HBM technology, but valuation is "discounted"

• HBM Market Share: 57% globally, the absolute leader
• Orders: Secured approximately 70% share of NVIDIA's next-generation AI platforms
• Technology: 1c DRAM yield has risen to 80%; over half of capacity will switch to new processes within the year, with monthly capacity reaching 190,000 wafers by year-end
• Valuation: Forward P/E is only about 5.7x, while Micron's forward P/E is about 9x—for every $1 earned, Micron is valued at $9, while SK Hynix is valued at only $5.7
• Catalyst: Plans to list in the US via ADRs to raise approximately $6.7-$10 billion; if successful, its valuation could catch up with Micron's

🔴 Samsung Electronics: Largest in scale, but temporarily falling behind in HBM

• Market Cap: Approximately $824.3 billion, ranking first globally in DRAM/NAND capacity
• Performance: Q1 operating profit was 57.2 trillion KRW, up 755% year-over-year
• Issues: Dragged down by HBM yields, temporarily lagging in the AI race
• Counterattack: Actively investing to expand 1c DRAM capacity in an attempt to regain market share in next-generation competition

II. How to Select Memory ETFs?

DRAM ETF: A Pure-Play Memory Track with Highly Concentrated Holdings

On April 2 of this year, the world's first pure-play memory-themed ETF—the Roundhill Memory ETF (Ticker: DRAM)—was listed on the U.S. stock market. It holds only nine stocks and maintains extremely strict selection criteria: constituent companies must derive over 50% of their revenue from the memory business. The top three weighted holdings are Micron Technology (24.63%), Samsung Electronics (24.11%), and SK Hynix (23.08%), collectively accounting for over 70% of the portfolio. It has an expense ratio of 0.65%, is actively managed, and rebalances its holdings quarterly.

Advantages: Buy major global memory stocks in a single click, with purity close to 100%. It is the only tool on the market that "bets solely on memory without touching other sectors."

Disadvantages: Assets under management (AUM) were only about $250,000 (at the time of launch), resulting in low liquidity. Furthermore, it holds some assets through total return swaps, making its structure more complex than standard ETFs.

Traditional Semiconductor ETFs: Memory Exposure is Heavily Diluted

The largest semiconductor ETFs on the market are SOXX (approx. $20.2 billion) and SMH (approx. $45.6 billion), with expense ratios of only 0.34%-0.35%. However, their exposure to the memory sector is extremely low:

• SOXX (iShares Semiconductor ETF) : Top ten holdings are primarily NVIDIA (8.45%), Broadcom (8.32%), Micron (7.07%), AMD (6.62%), and Applied Materials (5.87%), with memory weighting far below 5%. SOXX tracks the NYSE Semiconductor Index, using a market-cap weighting with a cap mechanism—the top five stocks are capped at 8% and others at 4%—providing high diversification.
• SMH (VanEck Semiconductor ETF) : Top ten holdings include ASML (11.39%), TSMC (10.32%), Micron (9.50%), NVIDIA (9.27%), and AMD (7.89%), where the memory sector is similarly diluted. SMH's weight distribution is more concentrated—NVIDIA and TSMC together account for nearly 20%, making it more sensitive to the performance of leading stocks.

If you are bullish on the memory track, buying SOXX or SMH is equivalent to buying a basket of semiconductor stocks, where memory is only a very small part.

Other Alternative ETFs: PSI and XSD

For investors wishing to diversify within the semiconductor sector while maintaining some memory exposure, there are two alternative options:

• PSI (Invesco Dynamic Semiconductors ETF) : Utilizes a quantitative model for stock selection and weighting, with an expense ratio of 0.56% and holdings of approximately 28-32 stocks. Micron is its largest holding at about 5.8%. PSI dynamically adjusts holdings through factors such as momentum, quality, and value, rebalancing quarterly.
• XSD (SPDR S&P Semiconductor ETF) : Uses a modified equal-weight methodology and holds approximately 45 semiconductor companies. Micron's weight is about 2.85%-4.48%. Individual stocks have a smaller impact on the portfolio, offering the highest diversification. The top ten holdings together account for only about 28%.

Core Differences at a Glance

Investment Recommendations for Different Scenarios

• Firmly Bullish on the AI Memory Track → DRAM ETF is the only "pure-play memory" option, with concentrated holdings and the highest purity, but note that liquidity is low and bid-ask spreads may be large.
• Bullish on Semiconductors as a Whole but Unwilling to Bet on a Single Stock → SOXX or SMH are the mainstream choices. SOXX is more diversified and suitable for conservative investors; SMH is more concentrated and suitable for investors with higher confidence in AI leaders.
• Belief in Quantitative Model Stock Selection → PSI offers a dynamic rotation strategy.
• Highly Diversified, Seeking Stability Rather Than High Returns → XSD’s equal-weight mechanism reduces the impact of individual stocks and single sub-sectors.

Vigilant About Potential Overheating in the Memory Industry → Historical data shows that when a sub-sector becomes so hot that it spawns a specialized ETF, it usually indicates the market is entering a relatively late stage. If you judge there is a risk of overheating, more diversified options like SOXX, XSD, or a custom stock portfolio might be safer choices.

III. Individual Stocks vs. ETFs: Which Is More Cost-Effective?

• If you have conducted in-depth research on a specific company, buying individual stocks directly may yield higher returns. Investors bullish on HBM technical leadership and valuation recovery should choose SK Hynix, while those seeking safety and liquidity should opt for Micron.
• If you are optimistic about the entire memory sector but do not want to bet on a single stock, the DRAM ETF provides a diversified option across nine companies, offering the convenience of "one-click allocation" for a 0.65% management fee. However, note that its small scale may lead to wider bid-ask spreads.
• If you are generally bullish on the semiconductor industry but uncertain whether memory will outperform other segments, SOXX or SMH are more mature choices.

IV. What to watch in the current market?

✅ The Supercycle Continues: A UBS research report indicates that AI-driven HBM demand continues to cannibalize DDR capacity, and the global DRAM supply-demand gap is expected to persist through the fourth quarter of 2027. Contract prices in Q2 2026 are projected to rise by an additional 58%-63%.

⚠️ Be Vigilant of Overheating Signals: BTIG's chief technical analyst noted that when a sub-sector becomes hot enough to trigger the creation of specialized ETFs, it usually signifies that the market trend has entered a relatively late stage. The DDR4 spot market once plunged more than 30% in a single day, and sentiment volatility should not be ignored.

🔐 Long-Term Logic Remains Unchanged: Microsoft and Google have signed three-year long-term agreements with memory manufacturers for the first time, introducing price floors and prepayment mechanisms. Memory chips are evolving from highly cyclical commodities into 'infrastructure-grade' scarce resources.

V. Closing Remarks

Memory chips are emerging as a core segment of hardware investment in the AI era. Whether buying individual stocks directly or positioning through ETFs, the key lies in understanding your risk tolerance and investment objectives.

• Deep Researchers → SK Hynix (Potential for technical and valuation "double play")
• Stability Seekers → Micron (High liquidity, traded directly on US exchanges)
• Passive Investors → DRAM ETF (Basket allocation)
• Broad Semiconductor Diversification → SOXX/SMH (Mature and reliable)

There are no absolute right choices, only strategies that suit your needs. In this once-in-thirty-years supercycle, staying rational and managing position sizes may be more important than obsessing over individual stocks versus ETFs.