
#AIMemoryStressTest
About AIMemoryStressTest
Storage stocks remain under pressure after earnings. Despite beats, Sandisk and WDC fell with Micron and SK hynix as U.S. tech rebounded, as guidance and valuations drew focus. SK hynix approved a ~KRW54.3T expansion for advanced memory in Yongin and Cheongju, betting on AI demand. Some firms kept Buy ratings on SK hynix and Samsung and raised 2027 cloud capex growth forecasts. Is this a shakeout in a long AI memory cycle, or are expansion and cautious guidance testing the shortage narrative?
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The earnings season for the storage sector has given a clear signal that performance can blow through the ceiling, but stock prices still fall.
Financial report explosion is only the ticket, the guidance is the pricing anchor
SanDisk's Q4 revenue was $8.97 billion, a year-on-year increase of 372%, far exceeding the expected $8.39 billion; Adjusted EPS is $39.25, with a gross profit margin of 84.6%, reaching a historical high. Western Digital's revenue was $3.75 billion, a year-on-year increase of 44%, which also exceeded expectations. Both companies delivered impeccable results, with SanDisk falling 7% after hours and Western Digital falling 11%.
There is only one core reason: the guidance is not impressive enough. SanDisk's revenue outlook for the next quarter is $10.3 billion to $10.8 billion, with a median of $10.55 billion, lower than FactSet's expected $11.148 billion. Western Digital also faced disappointment of "not enough surprises." Citigroup lowered its target price for SanDisk from $2,500 to $2,100. What the market wants is not "good," but "better than expected." When expectations have been pulled to the ceiling, any number below "perfect" is penalized.
The three forces that crush the plate are fermenting at the same time
The sell-offs of SanDisk and Western Digital quickly spread throughout the storage chain. Kioxia and SK Hynix plummeted by more than 10%, while Samsung Electronics fell by more than 6%. The KOSPI index fell by 5%, SK Hynix fell by more than 9%, and Samsung Electronics fell by more than 6%. Daxin Securities clearly pointed out that SanDisk's lower-than-expected performance guidance weakened the market's investment confidence in the storage chip industry, and the significant pullback in the semiconductor sector became the main reason for the decline in KOSPI that day.
Nvidia is evaluating a reduction in the HBM configuration of the Rubin Ultra from HBM4e 12Hi to 8Hi or other options. The reason is that the overall DRAM shortage in 2027 limits HBM wafer production capacity,$BTC #$SNDK #存储股财报后下挫,AI内存牛市还稳吗?
$SNDK SanDisk's performance is flawless: but it continues to plunge! How should we view and handle this now?
Just finished reviewing SanDisk's Q4 earnings, the numbers are unbelievably good: revenue hit 8.97 billion, far exceeding the expected 8.39 billion; earnings per share at $39.25 also beat the expected $34.4.
Gross margin soared directly to 84.6%, up more than 6 points from an already impressive 78.4%. Data center revenue reached 2.97 billion, surpassing expectations with 437% growth, and the QLC Stargate product is indeed starting to contribute revenue.
Logically, with such explosive data, the stock should have surged violently after hours.
What happened? It plunged after hours!
Not because of poor performance, but because the market wants the 2027 script, not the 2026 accolades. The Q1 revenue guidance is 10.3-10.8 billion, midpoint 10.55 billion, while the market expected 10.8 billion. That 250 million shortfall is just a breath away.
In short, the market logic now is: good performance is expected, good guidance is the real positive. Guidance not hitting the ceiling means failure.
So what now?
Long strategy: Wait for sentiment to settle. If pre-market can stabilize around 1340-1350, which is the support level of this rebound, consider light buying. Set stop loss below 1300, take profit at 1450-1480. The long-term logic of this stock is intact; AI storage shortages will last at least until mid-2027, and institutional average target price remains above 2400.
Short strategy: If the opening rebound can't break through 1430-1450, the high point of this rebound, consider shorting. Set stop loss at 1480, take profit at 1340. If it breaks 1300, increase position targeting 1244.
The performance is undeniably strong, but the best buying points are always after panic selling ends, not chasing in the numbness of "meeting expectations."
#AIMemoryBullTest #FedHawksVsWeakJobs #SpaceXUnlockRebound
#AIMemoryBullTest AI's Biggest Constraint May No Longer Be Chips. It Could Be Memory.
For the past two years, the AI investment story has largely centered around GPUs.
Now, memory is becoming just as important.
This week highlighted that shift. Western Digital (WDC) and Sandisk both reported earnings that beat expectations, yet their stocks declined after cautious guidance. Meanwhile, South Korea's chip sector sold off sharply, with SK hynix experiencing a premarket flash crash and Samsung also coming under pressure.
Adding to the debate, reports suggest Nvidia reduced memory configurations in certain Rubin Ultra models due to tight supplies of high-end HBM (High Bandwidth Memory).
That raises an important question.
Is memory scarcity a bullish signal because constrained supply supports pricing and margins?
Or is it becoming a bottleneck that limits AI server shipments and slows the pace of AI deployment?
Markets appear divided.
Investors have spent months rewarding companies exposed to AI infrastructure, but expectations have also become exceptionally high. As a result, strong earnings alone are no longer enough—companies must also convince investors that supply chains can support the next phase of AI growth.
The AI race isn't just about who builds the fastest chips.
It's increasingly about who can secure the memory needed to power them.
Do you think memory shortages will strengthen pricing power or become the biggest constraint on AI growth?
Share your thoughts below 👇

The latest earnings season has delivered a clear message for the storage sector: even exceptional results aren't always enough to lift stock prices.
Strong earnings may grab headlines, but forward guidance is what ultimately drives valuations.
SanDisk posted a remarkable Q4, with revenue reaching $8.97 billion, up 372% year over year and well above the $8.39 billion consensus. Adjusted EPS came in at $39.25, while gross margin climbed to a record 84.6%. Western Digital also exceeded expectations, reporting $3.75 billion in revenue, a 44% increase from a year earlier. Despite these impressive results, SanDisk fell 7% after hours and Western Digital dropped 11%.
The market's reaction came down to one factor: forward guidance. SanDisk forecast next-quarter revenue of $10.3–10.8 billion, with a midpoint of $10.55 billion, below the $11.15 billion analysts had anticipated. Western Digital faced a similar response, as its outlook failed to deliver the upside investors were hoping for. Reflecting the more cautious sentiment, Citigroup reduced its price target for SanDisk from $2,500 to $2,100. In today's market, simply beating expectations isn't enough—companies are expected to exceed increasingly optimistic forecasts.
The weakness quickly spread across the broader memory and storage industry. Shares of Kioxia and SK Hynix fell by more than 10%, while Samsung Electronics declined over 6%. South Korea's KOSPI also came under pressure as investors reassessed growth expectations for memory chips. Analysts noted that SanDisk's softer-than-expected outlook dampened confidence across the storage sector, triggering a broader semiconductor sell-off.
The takeaway is straightforward: in a market where expectations are already sky-high, future guidance carries more weight than outstanding historical results. Earnings may open the door, but expectations for the next quarter determine how the market values the business.
#AIMemoryBullTest
#FedHawksVsWeakJobs
#Alphabet25BBond
#闪迪财报双超预期,新增140亿美元回购授权
SanDisk's earnings exceeded expectations, but the stock price dropped 15%, which is confusing to me.
Last night, while lying on the sofa scrolling through my phone, I saw SanDisk released its earnings report. Revenue was 8.97 billion, surpassing the market expectation of 8.48 billion. EPS was $39.25, also beating estimates. They also approved a $14 billion buyback, and with the remaining from before, the total buyback can reach $15.5 billion. The numbers look pretty good, yet the stock fell more than 15% after hours.
I stared at it for a while but still didn’t fully understand. After checking around, the market is talking about the Q1 guidance midpoint of 10.3 billion, which is lower than Wall Street’s expectations. Also, the stock had risen too much, expectations were set too high, and when the results came out and didn’t seem strong enough, it got sold off. Last year it rose more than sevenfold, climbing all the way to 2300, so any slight disturbance causes people to run. Additionally, the Changxin incident is also weighing on the whole sector sentiment.
The performance itself is fine; AI storage demand is still supporting it. But the valuation is too high, expectations too elevated, so any slight disappointment leads to a sell-off. Retail investors cut losses, institutions unload shares.
Good performance, stock price drops,,,,
#DailyOrbit
The reaction across memory and storage stocks this week taught me something important:
AI demand can remain strong while AI-related stocks still fall hard.
Western Digital beat estimates with roughly $3.75B in quarterly revenue and $3.56 adjusted EPS, yet investors punished the stock. Sandisk also delivered a strong quarter, including $8.97B revenue, but its next-quarter revenue midpoint failed to clear the expectations already built into the price.
That distinction matters.
The market isn't asking whether AI needs more storage and memory anymore.
It already believes that.
It is asking whether scarcity, pricing power and margins can keep improving fast enough to justify valuations that have already moved several years forward.
That's a much harder test.
Sandisk and Western Digital had risen dramatically during the AI infrastructure trade before this correction, so simply “beating estimates” became insufficient. Investors wanted another acceleration.
Meanwhile, actual memory supply still looks tight.
NVIDIA and SK Group recently expanded their long-term partnership around next-generation AI memory, while industry research says 2027 HBM negotiations remain constrained by limited supply.
There are even discussions around reducing memory configurations in future Rubin Ultra designs because of packaging and supply constraints. If that happens, I would not automatically interpret it as weaker AI demand. It could be engineers adapting the product to what the supply chain can realistically deliver.
That's the real bull test now:
Not “Is AI consuming more memory?”
But “Can memory suppliers convert scarcity into durable earnings before expectations outrun reality?”
That is the metric I would watch.
#AIMemoryBullTest
#FedHawksVsWeakJobs
#SpaceXUnlockRebound
$BTC $XSPCX $SOL
Raport zilnic SanDisk (NASDAQ: SNDK) — 7 august 2026
📊 SanDisk (NASDAQ: SNDK) Daily Report — 7 August 2026 Current Market Share Price: Approximately $47 USD. Short-term Trend: 🔴 Bearish — Despite outstanding earnings, the stock remains under selling pressure after recent volatility. Latest Earnings Highlights ✅ Revenue: $8.97B (Beat estimate of $8.39B) ✅ EPS: $39.25 (Beat estimate of $34.40) ✅ Gross Margin: 84.6% (Up from 78% in the previous quarter) Key Support & Resistance 🟢 Support: $45–$46 🔴 Resistance: $50–$52 A daily close above $52 coul

Storage stocks played the "earnings beat expectations, stock price crashes" game again
Let's start with SanDisk. Earnings revenue was 8.97 billion, beating the market expectation of 8.48 billion, and they also approved a 14 billion buyback authorization, totaling 15.5 billion in buybacks. Western Digital's revenue was 3.747 billion, also exceeding expectations. Normally, with such results in previous years, the stock price would have taken off directly, right? But SanDisk fell 15% after hours, and Western Digital dropped 11%.
The reason is just one: the next quarter guidance midpoint is 10.55 billion, while Wall Street wanted 11.16 billion. A 600 million shortfall caused the stock price to collapse 15%. The key is that both companies have risen three to four times or more this year, and institutional holders have huge unrealized gains. Once the earnings report came out, even if it was just "not more than expected," they treated it as bad news to sell off.
#存储股财报后下挫,AI内存牛市还稳吗?
Now look at SpaceX. With a 100 billion unlock, 911 million shares can be sold. The market previously unanimously shouted "it's going to crash," but it actually rose 6%, closing at 114.92. But looking closely, on Wednesday it dropped 14%, already having a round of sell-off. Whether it has truly bottomed or is a dead cat bounce, no one can say for sure.
#财报观察员:解禁后反涨,SpaceX后续怎么看?
Then there's the Federal Reserve. ADP small nonfarm payrolls were 44,000, market expectation was 75,000, hitting a six-month low. But despite weak employment, the market's pricing of rate hike expectations is not so easily loosened because multiple Fed officials continue to emphasize high inflation risks and that they can't be led by single-month employment data.
#联储鹰派信号升温,弱就业能否压过通胀?
Putting these three things together, the logic is very clear: good companies do not equal good stocks, good performance does not equal stock price increase. SanDisk's performance was good enough, right? #AIMemoryBullTest #FedHawksVsWeakJobs #SpaceXUnlockRebound
I am Cige. The earnings season for the storage sector has sent a clear signal: performance can shatter the ceiling, but stock prices still fall.
Explosive earnings are just the entry ticket; guidance is the pricing anchor.
SanDisk's Q4 revenue was $8.97 billion, a year-over-year surge of 372%, far exceeding the expected $8.39 billion; adjusted EPS was $39.25, and gross margin hit a record high of 84.6%. Western Digital's revenue was $3.75 billion, up 44% year-over-year, also beating expectations. Both companies delivered impeccable results, yet SanDisk fell 7% after hours, and Western Digital dropped 11%.
The core reason is only one: the guidance was not impressive enough. SanDisk's next quarter revenue outlook is $10.3 billion to $10.8 billion, with a midpoint of $10.55 billion, below FactSet's expectation of $11.148 billion. Western Digital also faced disappointment for being "not impressive enough." Citi lowered SanDisk's target price from $2500 to $2100. The market wants not just "good," but "better than expected." When expectations are already at the ceiling, any number less than "perfect" will be punished.
Three forces crushing the sector are fermenting simultaneously.
The sell-off of SanDisk and Western Digital quickly spread through the entire storage chain. Kioxia and SK Hynix plunged over 10%, Samsung Electronics dropped over 6%. The KOSPI index's decline widened to 5%, SK Hynix fell over 9%, Samsung Electronics dropped over 6%. Daishin Securities clearly pointed out that SanDisk's below-expectation earnings guidance weakened market confidence in the storage chip industry, and the semiconductor sector's sharp correction was the main reason for the KOSPI's decline that day.
NVIDIA is evaluating reducing Rubin Ultra's HBM configuration from HBM4e 12Hi down to 8Hi or other options. The reason is that the overall DRAM shortage in 2027 limits HBM wafer capacity, and there is uncertainty in the validation timeline and mass production yield of 12Hi HBM4e. #AIMemoryBullTest #FedHawksVsWeakJobs #SpaceXUnlockRebound
Western Digital reported a stronger-than-expected fourth quarter, exceeding analyst expectations on both revenue and earnings.
Q4 Highlights:
• Revenue: $3.747 billion, above the consensus estimate of $3.692 billion.
• Adjusted EPS: $3.56, surpassing the expected $3.30.
$ETH
The results reflect solid operational performance and stronger profitability than analysts had projected. Investors will now be watching management's outlook and future demand trends to assess whether this momentum can continue in the coming quarters.
Rehan_X
Facts, Trends & Insights
#AIMemoryBullTest
#FedHawksVsWeakJobs
#SpaceXUnlockRebound
