핵심요약

• Micron의 소셜 미디어 심리는 wallstreetbets에서 35로 하락했습니다.
• SanDisk는 2028년부터 2030년까지의 매출총이익 목표를 발표하여 메모리 섹터가 상승했습니다.
• 투자자들은 단기적으로 메모리보다 광학주에 투자해야 한다는 주장이 제기되었습니다.
• 한국 레버리지 ETF가 종료됨에 따라 자금 유출(redemption rush)이 추가 매도 압력으로 작용할 수 있습니다.

도입

본 기사는 AI 하드웨어 분야에서 메모리 및 광학 주식에 대한 투자 관점을 다루며, 시장의 단기적인 소셜 미디어 심리와 기업의 실적 발표가 어떻게 주가 움직임에 영향을 미치는지 분석합니다. 투자자들은 이러한 시장 감정의 변화를 이해하고, 장기적인 구조적 변화 속에서 포트폴리오를 어떻게 조정해야 할지에 대한 방향성을 모색해야 합니다.

본문 1: 소셜 미디어 심리와 시장의 역학 관계

시장 참여자들의 심리는 단기적인 시장 움직임에 큰 영향을 미칩니다. 예를 들어, Micron 주식에 대한 소셜 미디어의 심리는 8월 9일 일요일에 wallstreetbets에서 35로 하락하며 약세로 전환되었습니다. 이는 시장 참여자들이 단기적인 가격 움직임에 민감하게 반응하고 있음을 보여줍니다. 반면, SanDisk의 심리는 수요일과 목요일에 48~55의 중립 범위로 하락했습니다. 이러한 소셜 미디어의 역풍은 투자 심리에 부정적인 영향을 미치며 잠재적인 매도 압력으로 작용할 수 있습니다. 이는 시장의 단기적인 과열 또는 조정에 대한 경고 신호로 해석될 수 있습니다.

본문 2: 구조적 변화와 투자 기회

소셜 미디어의 단기적 움직임과 별개로, 메모리 섹터의 장기적인 구조적 변화는 투자 결정에 더 중요한 요소입니다. 한 Citrini 분석가는 시장이 단기적으로 메모리보다 광학주에 투자해야 한다고 주장하며, 이는 일부 헤지펀드가 이미 해당 포지션을 취하고 있다는 점을 지적합니다. 이러한 주장은 한국 레버리지 ETF가 종료됨에 따라 LP(유동성 제공자)들의 환매 러시가 추가적인 매도 흐름을 유발할 수 있다는 점을 근거로 합니다. 따라서 투자자는 단기적인 소셜 미디어의 노이즈에 흔들리기보다, NVIDIA가 HBM(고대역폭 메모리)에 대응하여 광학 분야로 이동하는 구조적 흐름을 주목해야 합니다.

본문 3: 실적 발표와 미래 전망

산디스크가 2028년부터 2030년까지의 매출총이익 목표를 발표한 것은 이러한 구조적 변화에 대한 구체적인 신호로 작용했습니다. 이 목표는 메모리 섹터 전체에 대한 긍정적인 기대감을 형성하며 주가를 다시 끌어올리는 촉매제가 되었습니다. 이는 단기적인 시장 심리보다 기업의 장기적인 수익성 계획이 주가에 미치는 영향이 더 크다는 점을 시사합니다. 따라서 투자자들은 메모리 기업들의 장기적인 마진 개선 가능성과 광학 기술의 성장을 함께 평가해야 합니다.

결론

결론적으로, 메모리 주식에 대한 소셜 미디어의 단기적 심리 변화는 시장의 단기적 변동성을 반영하지만, 기업이 제시하는 장기적인 수익성 목표와 거시경제적 흐름은 더 중요한 투자 근거가 됩니다. 투자자들은 메모리 섹터의 장기적인 마진 개선 전망과 광학 기술의 성장 잠재력을 종합적으로 고려하여 신중하게 접근해야 할 것입니다. 향후 HBM과 광학 분야의 기술 경쟁 구도와 유동성 흐름을 지속적으로 관찰하는 것이 중요합니다.

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원문 링크: https://247wallst.com/investing/2026/08/15/social-media-went-negative-on-memory-stocks-like-sandisk-micron-last-weekend-then-they-rallied/?.tsrc=rss

Social Media Went Negative on Memory Stocks like SanDisk & Micron Last Weekend. Then They Rallied.

On the most recent episode of The AI Investor Podcast from 24/7 Wall St. , hosts Eric Bleeker and Austin Smith debated one of the most contentious calls in AI hardware right now: whether its time for investors to get out of memory stocks.

The conversation centers on SanDisk ( NASDAQ:SNDK | SNDK Price Prediction ), Micron Technology ( NASDAQ:MU ), Semtech ( NASDAQ:SMTC ), and NVIDIA ( NASDAQ:NVDA ). Bleeker discussed how social media last weekend had gone very negative on memory stocks, but he saw a path to lower margins and continuing strong profit growth in the years ahead. After this segment was released, SanDisk released gross margin targets for 2028 to 2030 that sent the entire memory sector soaring again.

The full episode is embedded below. This post focuses on the memory and optics segment specifically. Other portions of the episode covering the SpaceX buildout economics and the newest portfolio addition are handled in separate recaps.

The debate is grounded in what actually happened in market sentiment over the past week. Reddit chatter on Micron flipped bearish briefly on Sunday, August 9, 2026, with a sentiment score dropping to 35 on wallstreetbets around a thread titled “MU IV crush this week did more work than the stock ripping to $1255 ever did.” On SanDisk, sentiment sagged into the 48-55 neutral range through Wednesday and Thursday.

Bleeker detailed the debate on social media platform X, where the weekend turned into a debate around memory versus optics. He highlighted a post from Citrini analyst Jukan05 which spaked much of the debate. In it, Jukan argued :

“ I think the market ultimately has no choice but to go sell memory, long optical in the “short term.” Actually, some hedge funds already seem to have this position on. There are three main reasons. 1. With Korean leveraged ETFs effectively dead, LPs are in a redemption rush, which could bring out additional sell on flow. 2. Nvidia is nerfing Rubin Ultra’s HBM and responding with optics, tying multiple racks together, so that even if Rubin Ultra’s per rack performance is not superior to Rubin, at the cluster level optics let the Rubin Ultra cluster hold an edge over the Rubin cluster. This holds even if Rubin Ultra’s HBM nerf is a supply problem rather than a demand problem. 3. Consensus is forming that memory prices will peak within the next two quarters. Medium to long term I am still a memory bull, but short term I am somewhat bearish on memory. I currently have no memory position.”

Then this week got underway and memory stocks experienced a sharp turnaround. Micron sentiment rebounded to a bullish 78 by Friday afternoon, while SanDisk sentiment climbed back to 76 by Friday morning on the back of a post titled “Sandisk forecasts mid-to-high-teens revenue growth through 2030”.

Prices followed the narrative. SanDisk rose 35.38% for the week ending August 14, closing at $1,641.11. Micron rose 10.72% over the same week, closing at $971.66.

Eric Bleeker opened the segment with a historical framework that has served memory investors well through prior cycles. “Historically, gross margin peaks have been the sign to get out of memory,” he said. He pointed to investor concern building after SanDisk’s most recent earnings, where the company indicated it would hold margins near current levels rather than continue expanding.

Current gross margin levels are striking. SanDisk’s Q4 FY2026 non-GAAP gross margin came in at 84.6%, up from 78.4% the prior quarter and 26.4% in the prior year. Management guided Q1 FY2027 gross margin to a range of 83% to 85%, essentially flat sequentially. Micron’s gross margin story is similar. Q3 FY2026 came in at 84.9%, a company record, with Q4 guidance of approximately 86%.

For a sector that historically saw peak cycle margins in the low 60s, current levels represent uncharted territory.

Austin Smith pointed out that gross margins nearing their peak were actually healthy. Highlighting SanDisk’s near-85% gross margin, Smith noted, “You can’t get more than 100%, and you’re pretty darn close to that already.” The implication: applying the old peak-margin sell rule to a business printing structurally different economics ignores what has actually changed under the hood.

That structural change is the New Business Model framework SanDisk laid out on its call. CFO Luis Gomez indicated NBM margins are expected to run around 80%, with CEO David Goeckeler adding, “Durability is a big piece of it. We want to get a fair return for our product. I think mid-80s gross margin I would characterize as a fair return.” SanDisk has already signed up 8 diverse data center and edge customers on these agreements, with $16.5 billion in aggregate financial guarantees backing them.

Micron’s version is its Strategic Customer Agreements. As of the June call, Micron had signed 16 SCAs covering approximately 20% of DRAM volume and roughly one-third of NAND volume. Total cash deposits and commitments backing those deals sit at $22 billion, and management flagged that floor-price margins under these agreements are “well above our peak quarterly margins in any past cycle”.

Then this week SanDisk seemed to validate Bleeker and Smith’s call that memory margins could compress without crashing the market. SanDisk released a new financial model that forecasts non-GAAP gross margins at 80% in the 2028 to 2030 period. At those levels, revenues (and profit margins) would continue to grow. The market was impressed with the potential durability of SanDisk’s earnings, and bid up the entire memory sector.

The hosts also weighed in on the recent NVIDIA Rubin headline about the platform reducing HBM content. Smith clarified the causality, saying NVIDIA is reducing HBM memory because of supply constraints, in his words, “there’s not enough supply, so they’re forced to work around it.”

Micron’s own commentary supports that read. CEO Sanjay Mehrotra said on the Q3 call, “We expect tight conditions to persist beyond calendar 2027 as a result of AI-driven demand across all segments coupled with structural supply constraints.”

The other side of NIVIDA’s HBM changes, which were highlighted by Jukan’s post, was that less HBM in NVIDIA systems would lead to an increasing amount of optics in NVIDIA’s next-generation systems.

Bleeker framed the practical takeaway as owning both sides of the AI infrastructure content trade. On the optical side, he recently added Semtech to the million-dollar AI portfolio he manages on the podcast as a play on the optical content shift in Rubin. Semtech’s fundamentals back the thesis. Q1 FY2027 net sales hit a record $291 million, up 16% year over year, with data center revenue at $71.6 million, up 39% year over year.

Q2 guidance calls for net sales of $328 million and sequential data center growth of 35%. CEO Hong Ho said on the call, “Our data center business is firing on all cylinders.” The FiberEdge and CopperEdge 1.6T ramps are the direct beneficiaries of the same NVIDIA rack architecture shift that memory suppliers are wrestling with.

Semtech closed at $140.35 on August 14, up 177.81% over the trailing year.

If you enjoyed this segment, subscribe to The AI Investor Podcast for weekly breakdowns of the stocks, suppliers, and infrastructure names powering the AI buildout. New episodes are available on YouTube , Apple Podcasts , Spotify , and all major podcast providers. Recent episodes are linked below. We’ve recommended more than 50 stocks (for free!) on the podcast, and our average recommendation is up 147%. Don’t miss out on the biggest news in the investing world and new stock recommendations each week!.

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Source: https://247wallst.com/investing/2026/08/15/social-media-went-negative-on-memory-stocks-like-sandisk-micron-last-weekend-then-they-rallied/?.tsrc=rss