跟踪 Serenity 的最新研究

Now that $MU to $SNDK have pulled a major recovery. Good to have a reminder that the memory bottleneck hasn’t changed! Same with CW lasers… substrates… or others. But short term sentiment (depending on prices/macro) often does. I think a lot of demand imbalances get worse than people expect: - There’s some Japanese distributors in Nikkei today saying memory demand deficit has reached 40-60% (67-150% higher than supply). With general prices going up 50% by years end. - $SPCX isn’t included in the $1.3T hyperscaler capex figures (I think Wells Fargo ets. ~$263b AI capex), so total capex figures might be surprising. - $SNDK expects 80% gross margins to continue into 2030… (welcome to S&P 100) - and once again you have long term visibility into 2031 now with companies like Samsung Memory is very really volatile… some of my positions are up 270%+, so I find it a bit easier to hold through volatile periods. But regardless, operating fundamentals doesn’t always align with short term price movements. Same concept can be applied to other sectors.

Just an update to my DDR2/DDR3 memory idea with ESMT. They reported August revenue (Taiwan sometimes does monthly reporting): June revenue: ~$153M July: ~$214M August (new): ~$249M vs. $35.3m (last year) Monthly revenue has increased ~63% in two months despite reportedly similar 2026 wafer allocations to 2025 (MoneyDJ report). The profitability is already really high as seen with July's monthly revenue (where they reported ~$109M net income). So if pricing holds, and revenue increases, that would be very nice... Now a lot of US people don't really care since it's in Taiwan, but if you're in the $MU / $SKHY, $SNDK trade. Just educational purposes, it's a second order effect where your leading memory players prioritize AI/DC higher end memory and reduce allocations to older generations (causing shortages). But... DDR4 since prices going up too much, so older gen memory products (DDR4) are getting redesigned with older gen memory (DDR3). And DDR3 products with DDR2. And so on. Causing cascading supply chain shortages. (DDR2 for example is boring/old memory used for cameras, printers, automotive back in the 2000s and not many ppl make them anymore). And even your old DDR2 suppliers like Winbond are gradually withdrawing from the market too... So ESMT is the beneficiary of DDR3/DDR2 shortages. TLDR: ESMT August revenue was ~$249M, up from ~$214M last month.

Okay just to simplify this: There is a guy who eats a lot called $NVDA. Nvidia only wants to buy high-priced potatos off the farmers. A potato farmer $MU, that was selling carrots... now shifted farmland to potatos. Nvidia caused a great potato famine cause they can eat a lot. So everyone else who farmed carrots like SK Hynix and Samsung moved their farmland capacity to grow potato. But... people still need to eat. And carrots are a healthy part of their everyday diet.. Now there's no more carrots aside from a player like "ESMT", the legacy carrot farmer. So now, because everyone buys carrots off ESMT, there's a shortage and the price goes up. So ESMT needs more carrot seeds (from PSMC). But PSMC is running low on carrot seeds to grow the carrots. So PSMC charges ESMT more for the seeds. But the price ESMT sells the carrots at are much higher than what PSMC hikes the carrod seed price. now... ESMT is making enough from selling carrots that it traded 1.9x P/E off July's earnings. Can ESMT keep selling these carrots through 2027? All the other farmers thinks so since it's both hard + low incentive to migrate their valuable potato farms back to carrot farms.

I've always been bullish on memory with $MU / Samsung / solana:SKHYhSjuRWHgikq8eRKbtBbpABgJSkd7ytQV14i9EQ3 for the 2026-2027 period. Same opinion, even after $NVDA call. And I've been fervently defending how high end memory demand is structural + OP for operating income (especially during Iran tensions around LNG/Helium). Nvidia earnings just reaffirms what we know about extreme demand since commitments went from $119B -> $279B largely driven by memory procurement. Nvidia's CFO also said: "We are experiencing extreme pricing conditions in memory." As for what I've done, H1 2026 I was extremely overweight in memory: With $MU, $SNDK, Phison, $SIMO, Nanya, Macronix, Winbond, and $EWY / SK Hynix (HBM/DRAM + NAND + legacy DRAM/NAND + controllers + NOR Flash). I trimmed down those positions aside from Samsung/SK Hynix longs, since I do believe many have been rerated (eg. Micron $300 -> $1000+ already). I think the largest price discovery period has played out, but just a waiting game for the operating income to catch up (esp u samsung) And I used that period to go overweight on photonics. But I do believe we're seeing a relatively newer cascade down into the "legacy legacy" memory like DDR2/DDR3 with the "legacy" players like Winbond leaving some of those segments. Where the price hikes finally hit the 40-60% Q/Q mark, which reminds me of the extreme $SNDK days, across DDR2/DDR3. Which is why I started up positions in ESMT (1.9x P/E from July annualized) and Etron. Maybe we'll see a price discovery moment further down the legacy memory stack (could be wrong), but that's the area I've focused on recently.

Yes, I'm still bullish on memory like $MU / Samsung. As I said earlier, markets tend to rotate from bottleneck to bottleneck. This week it looks $AXTI to $LITE in the photonics sector is the focus again. The thing is... the primary thing that changed are the stock prices, followed by some narratives + updates sprinkled in here and there. For photonics: > We already knew $COHR / $LITE lasers were completely sold out for the next 2 years during July's drop. > We knew about demand imbalance from $AAOI from last quarter's earnings calls. Nothing deteriorated fundamentally during July's crash, other than listed price after liquidations. Yet tons of people called $AAOI a "scam" when it dropped to $75, or $AXTI a "scam" on its drop to $35... But are bullish again at $140 or $80, when the transciver/InP substrate bottleneck hasn't changed at all, but maybe even got worse... (eg. draft for US ban on new china optical transceivers, scale up demand projections) For Memory: I'm witnessing a lot of retail capitulation, but the same people I'm seeing were mega bullish after $MU signed 16 SCAs and gave exceptional projections a month ago. Or were celebrating Samsung having the highest operating profit in the world. There's updates here and there eg. Rubin Ultra with memory optimizations (which Nvidia strives for every generation), with prices no longer being hiked way above expectations to the extreme. But the operating income relative to MC is just absurd around current prices, especially memory becomes structural. And the demand imbalance should be even worse next year. People tend to capitulate and follow narratives when a sector drops (eg. Helium/LNG back in Iran war), even if the bottleneck or fundamental situation hasn't really changed much (eg. $SPCX Elon earnings call reiterating memory tightness). I can't tell others what to to do: But $AAOI at $140 and $AAOI at $75 are the same company. Samsung at a $1.5T MC and Samsung at a $980B MC are the same company. Just valuations and narratives (often noise) change, and markets rotate from sector to sector.