Institutional Q2 Holdings Revealed! What Is "Smart Money" Buying?

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Tuitui X Daily: 13F filings flood in as SpaceX becomes Wall Street's new favorite; NVIDIA reveals $21 billion bet on Musk

August 15, 2026 · Covering 369 KOLs and 1,921 tweets

As the Q2 13F filing window opens wide, details of SpaceX holdings were fully exposed overnight, with everyone from NVIDIA and AMD to the Saudi sovereign wealth fund and Elon Musk himself revealing their positions. The topic surged to second place on the day's mention rankings. Meanwhile, SanDisk Investor Day ignited another round of euphoria in the memory sector with strong guidance, while underlying pressures loomed over the broader market: debt approaching $40 trillion, escalating tensions in Iran, and a sharp drop in consumer confidence.

I. Trending Stocks on X

II. Market Main Themes | 13F filings bloom across the board, SpaceX positions widespread

• SpaceX holdings fully exposedNVIDIA disclosed a SpaceX equity stake worth approximately $21 billion (122 million shares), while AMD reported a SpaceX position of about $566 million for the same period.@StockSavvyShay ; The Saudi Investment Fund's largest new purchase in Q2 was 154 million shares of SpaceX (approximately $25 billion), which now accounts for 65% of the fund's holdings.@amitisinvesting The fund is seen as not rushing into short-term trading, possibly holding for the long term; Musk himself disclosed in a new SEC filing that he holds 6.419 billion shares of SpaceX (representing a 48.4% equity stake), estimating his net worth at approximately $908.35 billion. @amitisinvestingThrive Capital, under Josh Kushner, newly acquired 18.91 million shares of SpaceX (worth approximately $3.2 billion), which currently makes up 84.8% of its public holdings.@burrytracker 。

• Major rotation in 13F filings by traditional heavyweight investors： $Berkshire Hathaway-B (BRK.B.US)$ Increased holdings in Alphabet by 48.1 million shares in Q2, while reducing positions in Bank of America by 30.2 million shares and The Kroger Co. by 11 million shares. @unusual_whalesStanley Druckenmiller’s Duquesne Capital established new positions worth $120.2 million in Google and $42.3 million in AMD.@unusual_whales; Appaloosa (Tepper) increased its position size by 30% this quarter to $7.73 billion, with Amazon, Micron, $Taiwan Semiconductor (TSM.US)$ the three major AI holdings now accounting for nearly 40% of the portfolio, while newly entering CoreWeave and simultaneously using put options to short Apple and Berkshire Hathaway Class B shares. @burrytracker; Bridgewater's assets under management grew by 8.8% this quarter to $24.38 billion, clearing positions in $Cisco (CSCO.US)$ 、 $Palantir (PLTR.US)$ 、 $NEBIUS (NBIS.US)$ etc., and entering new positions in $ServiceNow (NOW.US)$ 、 $Applovin (APP.US)$ etc. @burrytracker。

• NVIDIA reveals its investment portfolio: Disclosure filings show that NVIDIA itself holds $30 billion worth of $Intel (INTC.US)$ Intel, $21 billion worth of SpaceX, $4.6 billion worth of CoreWeave, $3 billion worth of $Coherent (COHR.US)$ and other ecosystem partners' equity stakes. @TrendSpider, interpreted as converting cash into deep binding with the supply chain and customers; but @FinanceLancelot A reminder: The scale of revolving credit loans provided by NVIDIA to customers is reportedly as high as $5 trillion, equivalent to more than forty times its fiscal year 2026 revenue, suggesting that the AI bubble is more severe than imagined.

• Rotation into memory chips and AI infrastructure continues to intensify: At SanDisk's Investor Day, mid-term guidance was raised—revenue growth in the high-teens percentage range, non-GAAP gross margin around 80%, adjusted free cash flow margin around 50%, with a commitment to return all excess cash to shareholders. Management's HBF technology data showed that one HBF GPU can run models that previously required eight HBM GPUs (approximately 8x CapEx efficiency), causing the stock price to jump 14% on the day · @amitisinvesting；@MrMikeInvesting Capital is accelerating its rotation into two major themes: AI infrastructure (NEBIUS, $IREN Ltd (IREN.US)$ , DigitalOcean) and memory chips (SanDisk, Micron, $Western Digital Corp (WDC.CA)$ ).

III. Macro Topics | Debt approaches $40 trillion, intertwined with Iranian pressure and collapsing consumer confidence

• Both consumption and growth signals are weakening: The University of Michigan Consumer Sentiment Index for August plunged to 51.0 (expected: 55.0; previous: 55.2), while the one-year inflation expectation rose simultaneously to 4.3% ·@LizAnnSonders; The Atlanta Fed's GDPNow model subsequently slashed its Q3 real GDP forecast significantly from 5.8% on August 6 to 4.3% ·@LizAnnSonders；@elerianm July retail sales missed expectations across the board. Coupled with previously soft inflation and employment data, the market is further scaling back rate cut expectations for September.

• Global bond markets are under simultaneous pressure: US national debt is approaching the $40 trillion mark, less than $100 billion away from this psychological threshold ·@PeterSchiffFrench 10-year government bond yields hit a new high since 2009, while German 30-year government bond yields reached their highest level since 2011.@Hedgeye ；@robin_j_brooks A reminder: despite dovish inflation data and weak retail figures this week, the US 10-year forward Treasury yield remains at a 20-year high, warning that "just because things have lasted longer than everyone expected doesn't mean they will last forever."

• Escalating tensions in Iran push oil prices higher.: Treasury Secretary Bessent stated that "unprecedented" sanctions against Iran will be announced next week.@HFI_Research, Trump told Fox News that he would impose severe economic measures on Iran.@FirstSquawk; Goldman Sachs' crude oil tracker shows Brent crude has risen to the upper $80s, with floating storage in the Persian Gulf decreasing by 3.4 million barrels per day over the week (see chart); on the same day, the People's Bank of China rarely injected CNY 348 billion in liquidity via overnight reverse repurchase agreements mid-month, marking the first such operation in history during the middle of the month.@Barchart。

4. Individual Stock Forums

1. $NVIDIA (NVDA.US)$ | Revealing its hand: holdings span space, cloud computing, and the chip supply chain

NVIDIA rarely discloses its investment portfolio; the equity value of ecosystem partners such as SpaceX, CoreWeave, and Coherent totals over $30 billion. This is widely interpreted as a strategic move to convert cash into supply chain binding. However, some voices worry that this circular financing model, acting as both supplier and investor, is amplifying the risk of an AI bubble.

***Bullish

• @TrendSpider: Citing disclosure documents, NVIDIA holds approximately $30 billion in Intel, $21 billion in SpaceX, $4.6 billion in CoreWeave, and $3 billion in Coherent, among other ecosystem equity stakes, viewed as a signal of deep binding with customers and suppliers.

• @amitisinvesting: Norway's Sovereign Wealth Fund (the world's largest, with $2.3 trillion in AUM) held NVIDIA as its top position in the first half, followed by Microsoft and Apple. AI-related names supported the fund in recording its best quarterly performance in four years during H1.

***Bearish

• @FinanceLancelot: Warning that the scale of revolving credit facilities provided by NVIDIA to customers is reportedly as high as $5 trillion—equivalent to more than 40 times its FY2026 revenue—it argues that the AI bubble is more severe than imagined, comparable to the "steroid-fueled dot-com bubble of 2000."

***Neutral

• @amitisinvesting: NVIDIA's daily options volume topped the entire market with 2.4 million contracts, maintaining trading heat significantly ahead of other individual stocks.

2. $SpaceX (SPCX.US)$ | Wall Street's New Favorite: Musk's Net Worth Revealed to Exceed $900 Billion

The concentrated exposure in 13F filings has made SpaceX an overnight favorite among institutional investors—from NVIDIA and the Saudi Sovereign Wealth Fund to Elon Musk himself, with持仓 details successively disclosed, sparking unprecedented market enthusiasm. However, the massive concentrated holdings and potential Tesla merger rumors have led some analysts to worry about valuation transparency and the risk of potential equity dilution.

***Bullish

• @amitisinvesting: The Saudi Public Investment Fund's largest new purchase in Q2 was 154 million shares of SpaceX (approximately $25 billion), now accounting for 65% of the fund's portfolio. As the capital is derived from oil revenues and does not require short-term trading, the fund is likely to hold these positions long-term.

• @burrytracker: Thrive Capital, under Josh Kushner, newly acquired 18.91 million shares of SpaceX (approximately $3.2 billion), which now accounts for 84.8% of its public holdings.

• @StockSavvyShay: NVIDIA disclosed a SpaceX position worth approximately $21 billion, while AMD disclosed a SpaceX position worth approximately $566 million for the same period.

***Bearish

• @garyblack00: It is expected that SpaceX may acquire Tesla within the year at a premium via an all-stock deal. However, it is believed that most Tesla shareholders will choose to cash out on the day of the announcement rather than wait 6 to 12 months for the transaction to close and endure approximately 50% equity dilution.

***Neutral

• @amitisinvesting: Elon Musk himself disclosed in the latest SEC filing that he holds 6.419 billion shares of SpaceX (representing a 48.4% equity stake). Based on this, his personal net worth is estimated at approximately $908.35 billion.

3. $SanDisk (SNDK.US)$ | Investor Day Provides High-Growth Guidance, HBF Technology Narrative Gains Momentum

At its Investor Day, SanDisk raised its medium-term financial targets and demonstrated the efficiency advantages of its new HBF storage technology. The stock surged 14% in a single day, with strong bullish sentiment and little visible opposition. The main divergence lies in whether the current rally has already priced in expectations for capacity expansion over the next two to three years.

***Bullish

• @amitisinvesting: SanDisk's guidance indicates revenue growth will reach the mid-to-high teens percentage-wise, with non-GAAP gross margins around 80% and adjusted free cash flow margins around 50%. The company also committed to returning all excess cash to shareholders. Management stated that internal tests show one HBF GPU can run models that previously required eight HBM GPUs, equivalent to an approximately 8x improvement in CapEx efficiency. The company's stock price rose 14% in response on the day.

• @aleabitoreddit: It is believed that the supply bottleneck landscape for memory chips among SK Hynix, Samsung, SanDisk, and Micron has not changed, and tight supply and demand conditions will persist.

• @xiaomustock: Citing flash news reports stating " $Meta Platforms (META.US)$ Will join the relevant coalition to co-develop the High Bandwidth Flash (HBF) open standard with SanDisk, becoming the second tech giant to participate after Google.

***Bearish

• None at the moment.

***Neutral

• @MrMikeInvesting: Observing accelerated capital rotation into the memory sector (SanDisk, Micron, Western Digital) and AI infrastructure themes (Nebius, IREN, DigitalOcean).

4. $Tesla (TSLA.US)$ | Roadster Satellite Edition teaser heats up; speculation intensifies regarding a merger with SpaceX.

Tesla lacked independent catalysts on the day, largely getting swept up in SpaceX-related narratives—ranging from rumors about the launch of a space-powered Roadster to analyst speculation on a potential merger between the two companies. The focus of the bull-bear tug-of-war has shifted from fundamentals to expectations around capital maneuvering.

***Bullish

• @StockSavvyShay: Reports indicate Tesla could release the long-delayed Roadster as early as this month, featuring a "flyable" version powered by SpaceX's cold gas thruster technology, seen as a demonstration of the increasingly integrated engineering capabilities of the two companies.

***Bearish

• @garyblack00: Maintaining a cautious stance on Tesla due to continued downward revisions in long-term earnings expectations, commercialization risks facing autonomous driving technology, and a current 2026 P/E ratio of 195x that appears excessive relative to the expected 35% earnings growth rate. Tesla's stock has significantly underperformed the Nasdaq year-to-date (-24% vs +19%).

***Neutral

• @garyblack00: A reminder that even if the probability of SpaceX acquiring Tesla at a premium is not low, most Tesla shareholders may still choose to sell on the day the deal is announced rather than endure a 6- to 12-month waiting period and approximately 50% equity dilution.

5. Event Calendar

Announced

• US July PPI rose 4.7% year-over-year (expected +4.9%), flat month-over-month (expected +0.2%); Core PPI rose 4.2% year-over-year, slightly beating expectations, but cooled to +0.2% month-over-month; Initial jobless claims came in at 209,000 (expected 202,000). Via@amitisinvesting

• The University of Michigan Consumer Sentiment Index for August plunged to 51.0 (expected 55.0, previous 55.2), while the 1-year inflation expectation rose concurrently to 4.3%. Via@LizAnnSonders

• US July retail sales missed expectations across the board, leading the market to further lower rate cut expectations for September. Via@elerianm

• The Atlanta Fed's GDPNow model lowered its forecast for Q3 real GDP growth from 5.8% to 4.3%. Via@LizAnnSonders

• The People's Bank of China unexpectedly injected CNY 348 billion in liquidity via overnight reverse repurchase agreements mid-month, marking a historical first · Source:@Barchart

• SanDisk raised its mid-term financial guidance and showcased the efficiency advantages of its HBF storage technology at Investor Day, sending shares up 14% in a single day · Source:@amitisinvesting

• Berkshire Hathaway, Druckenmiller’s Duquesne Family Office, Bridgewater, Appaloosa (Tepper), Point72, Thrive Capital, and other institutions have sequentially disclosed their Q2 13F holdings · Source:@unusual_whales、@burrytracker

Read more
• Heavy week for earnings releases starting August 17: Home Depot $Home Depot (HD.US)$ 、 $Walmart (WMT.US)$ 、 $Target (TGT.US)$ 、 $Analog Devices (ADI.US)$ 、 $TJX Companies (TJX.US)$ 、 $Lowe's Companies (LOW.US)$ 、 $Estee Lauder (EL.US)$ 、 $Futu Holdings Ltd (FUTU.US)$ 、 $Ross Stores (ROST.US)$ and others will announce earnings sequentially · According to @Mr_Derivatives

This report is based on a review and synthesis of public tweets from selected US stock KOLs (professional investors, analysts, and traders, excluding general retail sentiment) over the past 24 hours. It is provided for market information purposes only and does not constitute investment advice.

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