半导体存储延续上涨，到了该重点布局的时候了吗？
- 核心观点：存储芯片产业正在被AI需求重塑，其战略地位从GPU的附属品提升至“第二张门票”，驱动新一波超级周期。但行业固有的周期性风险及美股ADR高溢价套利风险不容忽视。
- 关键要素：
- 芯片板块强势上涨（美光+12%，闪迪+14%，SK海力士+13%）直接打破了“存储周期见顶”的市场共识。
- 英伟达下一代芯片Vera Rubin对内存带宽与容量需求激增，存储成为决定AI系统性能的关键独立瓶颈。
- 产业资本持续加码：SK海力士拟收购英特尔晶圆厂，三星、SK海力士等与英伟达将举行高层圆桌会议。
- 历史数据表明，存储芯片具强周期性，每轮超级周期顶部常伴随30%-50%的显著回调。
- SK海力士美股ADR（SKHY）较韩股正股存在约29.8%的溢价，且7月29日将开放互换，套利压力可能导致ADR价格大幅向正股收敛。
The US chip sector continued its strong upward momentum last night.
Micron closed up about 12%, Sandisk closed up 14%, and SK Hynix closed up 13%. The gains of these three memory chip giants are each enough to rival the daily volatility of altcoins in the crypto market. But the impact of this surge goes beyond the numbers themselves – it directly shattered the "memory cycle peak" consensus that had been gradually forming in the market over the past few weeks.
"The super cycle for memory chips is over" – this once increasingly convincing judgment was overturned overnight by real capital flowing into the market.
1. Why the Continued Surge? Two Underlying Logics Are Being Reconstructed
On the surface, this looks like a sentiment-driven revenge rally. But by breaking down the driving factors, we find two deeper industrial logics being repriced.
Logic One: Memory Becomes the "Second Ticket"
Over the past two years, the narrative core of the AI industry chain has revolved around just one thing – GPU. Nvidia was the sole king, and whoever bought the most GPUs led the AI arms race.
But now, this narrative is undergoing a critical diffusion.
Nvidia's next-generation AI chip architecture, Vera Rubin, has entered the mass production and shipping phase. This chip demands an unprecedented level of memory bandwidth and capacity – the parameter scale on the model side is also expanding simultaneously. Meanwhile, Kimi K3's 2.8 trillion parameters mean that HBM (High Bandwidth Memory), DRAM, and traditional storage must be constantly loaded throughout the inference process, unlike in the past where data could be shuttled back and forth between CPU and GPU.
In simple terms: Storage is no longer a "peripheral" to the GPU; it is becoming an independent bottleneck, on par with the GPU, that determines AI system performance.
The computing power narrative is shifting from "just buy GPUs" to "memory is the second ticket." When the status of memory is elevated to be on equal footing with computing power, the valuation framework for the entire industry chain needs to be rewritten – this is the core reason why capital is suddenly flowing back into memory chips.
Logic Two: The Industry is Doubling Down, Not Contracting
Contrary to the pessimistic "capital expenditure peak" narrative, actual actions at the industry level show that players are accelerating investment, not hitting the brakes.
Recent news flow can also explain this phenomenon:
First, SK Hynix is reportedly in talks to acquire Intel's wafer fab in Ohio. If this deal goes through, Hynix will gain DRAM manufacturing capabilities within the US – not only strategically strengthening its global capacity layout but also, against a backdrop of increasing geopolitical uncertainty, paving the way to secure orders from major US clients.
Second, it is reported that the leaders of three major South Korean tech giants – Samsung, SK Hynix, and Naver – will fly to Silicon Valley this week for a roundtable meeting with Nvidia CEO Jensen Huang. This marks the first time top players from the memory manufacturing, GPU dominance, and large model development sectors have sat at the same table – the depth and breadth of industry collaboration far exceeding what the market previously imagined.
These signals collectively point to one judgment: The industrial status of memory chips is undergoing a systematic revaluation. It is no longer a passive, commodity-like supplier but a strategic node in the AI infrastructure chain, on par with GPUs.
Market opinion suggests that the second half of the memory super cycle may have just officially begun.
2. But Don't Pop the Champagne Just Yet – The Fate of Cyclical Stocks Remains
That said, "the start of the second half" does not mean you can "blindly chase after it."
The memory chip industry has an iron law that no matter how optimistic you are about the current demand explosion, you cannot escape it – cyclicality.
History repeatedly tells us: The cyclical peak of the semiconductor industry often ends with a decline of 30% to 50%. This isn't speculation; it's the standard ending for every memory super cycle over the past two decades.
The current second half may have indeed begun, but this doesn't mean the valuation bubble left over from the first half has been fully digested. You can make money in the second half, but you can also lose money.
3. An Easily Overlooked "Hidden Bomb": SK Hynix ADR's 29.8% Premium
If you chased the rise of SK Hynix's US ADR (SKHY) last night, there is a risk that is likely bearing down on your position.
SKHY's current stock price is around $173, but it trades at a premium of approximately 29.8% compared to the underlying SK Hynix stock on South Korea's KOSPI market. After deducting this premium, the reasonable value based on the Korean stock is around $120.
More critically: On July 29th, just 5 trading days from now, SKHY's ADR will be open for conversion with the underlying Korean stock.
What does this mean? It means arbitrage funds can buy the cheaper underlying stock on the Korean market and then convert it into ADRs to sell on the US market – pocketing a near 30% premium through this operation. When a large amount of arbitrage capital floods in, the price of the ADR will be forcibly pulled down towards parity with the underlying stock.
Even if the underlying Korean stock itself doesn't fall, SKHY could drop significantly due to the premium convergence. If you chased after it in the high premium range above $170, this risk isn't just theoretical; it's reflected in your position details.
4. Final Thoughts: Bullish on Direction, Bumpy on the Journey – Options are the Best "Safety Belt" Now
Based on the above analysis, the current situation can be summed up in one sentence: The big picture is bullish, but the journey will be full of bumps.
You might agree that the second half of the memory super cycle has begun, but you are also well aware that cyclical stocks can face a pullback of over 30% at any time.
In such moments of "believing in the direction but fearing the process," options are the most suitable risk management tool.
The options functionality on the BIT platform will be officially launched this week. At that time, you can:
- Hold underlying stock + Buy put options: Lock in downside risk within an acceptable range using a small premium.
- Buy both directions simultaneously: Earnings season brings high volatility, and you're unsure of the direction? Bet on both sides; as long as the volatility is significant enough, you can profit.
- Buy call options in one direction: Bullish on the second half but don't want to fully commit to buying the underlying stock? Use options to gain leveraged exposure with limited downside risk, where the maximum loss is just the premium paid.
Margin long, short selling, option hedging – three strategies, one platform. In the second half of the memory super cycle, you can both seize the opportunity for growth and protect your downside during corrections.
Risk Warning: Options trading involves risk and may result in the total loss of the premium paid. Using margin will further amplify risk. The above strategies and figures are for illustrative purposes only and do not constitute investment advice. Actual trading results will vary depending on market conditions. Please make decisions carefully based on your own risk tolerance.
