The defining keyword of June 25 was 'RAMageddon.' AI data-center demand has completely depleted memory supply, creating stark winners and losers. Micron reported a stunning quarter — EPS beat estimates by 24% — sending shares up 15.7%. Meanwhile, Apple hiked MacBook and iPad prices by up to $200, only to see $265 billion wiped from its market cap as shares fell 6.1%. Microsoft, too, announced Xbox price increases and 1,000 layoffs, dropping 3.5%. Ironically, the biggest beneficiary and biggest victim of the AI infrastructure boom materialized on the same day. This dynamic is likely to persist: memory prices should remain elevated through at least 2027 as long as HBM demand continues unabated. For investors, the key is positioning on the 'supply' side of the chain.
📊 Top Movers
🧭 Sector Performance
🇰🇷 Korean Investor Perspective
The USD/KRW exchange rate surged to 1,544 won per dollar, up 9 won from the previous day. South Korean investors without currency hedging on QQQ or SPY holdings face amplified losses in KRW terms. SK Hynix is the biggest indirect beneficiary of Micron's blowout quarter, as both companies co-dominate the HBM market — Micron's record results strongly signal a similar beat ahead for SK Hynix. While QQQ fell 0.6% due to its Apple and Microsoft weighting, semiconductor-focused ETFs like SOXX gained sharply. TQQQ holders experienced approximately -1.4% (3x Nasdaq decline) plus additional FX losses from the weakening won.
📊 Market Overview
U.S. equities closed mixed on Thursday, June 25. The S&P 500 finished nearly flat at 7,357.49 (-0.01%), the Nasdaq slipped to 25,358.60 (-0.46%), while the Dow Jones Industrial Average edged up to 51,920.62 (+0.14%) as healthcare and industrials offset weakness in big tech. Beneath the surface, the session was anything but quiet. The phenomenon dubbed 'RAMageddon' — an AI-driven memory supply crunch — created dramatic winners and losers in a single day.
Micron Technology surged +15.74% to $1,213.56 after its record-shattering earnings beat after the prior day's close, while Apple fell -6.12%, wiping out $265 billion in market cap after announcing price hikes of up to $200 on MacBook and iPad product lines. The divergence encapsulated the defining trade of 2026: AI infrastructure winners vs. consumer-facing tech absorbing the cost shock.
🔑 Key Issues
1. Micron Earnings Blowout — Memory Supercycle Confirmed
Micron reported FY2026 Q3 EPS of $25.11, beating the Wall Street consensus of $20.20 by a remarkable 24%. Revenue of $41.46B exceeded forecasts ($35.69B) by 16%, driven by AI data-center HBM demand. Data-center revenue reached $25B in the quarter, enterprise SSD hit $5B (20% of DC revenue), and free cash flow hit a quarterly record. Q4 guidance of $50B revenue and $31.00 EPS significantly surpassed consensus of $43.58B. After surging 14.55% in after-hours trading the prior evening, shares rose further during the regular session to close at $1,213.56.
2. Apple Mac and iPad Price Hikes — 'RAMageddon' Fallout
Apple announced price increases of up to $200 across its MacBook Air, MacBook Pro, MacBook Neo, iPad Air, and iPad Pro lines, citing AI-driven memory shortages that have pushed chip prices up by 2.5x or more. The company itself used the term 'RAMageddon.' iPhone, AirPods, and Apple Watch were spared for now, though Wedbush warned iPhone hikes may follow. Apple shares fell 6.12% — their worst single-day performance in over a year — erasing approximately $265 billion in market cap, though the company remains above $4 trillion.
3. Microsoft Xbox Price Hikes and Layoffs
Microsoft announced Xbox console price increases of $100 (512GB) and $150 (1TB) effective August 1, alongside the discontinuation of the 2TB model. Hardware revenue for Xbox dropped 33% year-over-year, and overall gaming revenue fell 7%, prompting approximately 1,000 layoffs across Xbox Game Studios, marketing, and hardware engineering. Stifel cut its price target citing weaker FY27 margin assumptions. MSFT fell 3.46%, approaching a 52-week low.
4. Caterpillar Hits New All-Time High on AI Power Demand
Caterpillar surged +6.29% to $1,057.01, firmly holding above the $1,000 milestone. The market continues to re-rate Caterpillar as an AI infrastructure play rather than a cyclical equipment maker, driven by explosive growth in its power generation segment supplying generators and turbines to hyperscale data centers. Its order backlog stands at a record $63B, and shares are up approximately 78% year-to-date. Tariff headwinds of $2.2–2.4B remain a concern, but AI power demand is easily overpowering them.
5. GDP Beat and PCE In Line — Soft Landing Narrative Holds
The final Q1 GDP revision came in at +2.1%, well above the +1.6% consensus, reinforcing the soft-landing narrative. May Core PCE inflation came in at +0.2% month-over-month and 2.6% year-over-year, in line with expectations and continuing its gradual descent toward the Fed's 2.0% target. Initial jobless claims of 218K beat the 225K consensus, confirming labor market resilience. Gold rose to $4,039 on the benign inflation reading.
📊 Sector Performance
| Sector | Change | Key Driver |
|---|---|---|
| Semiconductors/Memory | +8.2% | Micron earnings blowout, HBM demand surge |
| Industrials | +3.1% | Caterpillar AI power demand re-rating |
| Healthcare | +2.0% | Merck FDA approvals, CICC upgrade |
| Financials | +0.6% | Stable rates, strong GDP |
| Energy | +0.4% | Stable oil prices |
| Utilities | +0.2% | Defensive buying |
| Telecom | -0.3% | Mixed |
| Technology (IT) | -1.8% | AAPL, MSFT, ORCL, NOW declines |
| Consumer Discretionary | -2.1% | McDonald's -3.4%, price hike concerns |
🌍 Global Markets
- European STOXX 600: Modestly higher; European tech stocks mixed
- Dollar Index (DXY): 101.61, near flat on the day
- 10-Year U.S. Treasury Yield: 4.45%, stabilized on PCE in-line print
- WTI Crude: $67.50, stable following U.S.-Iran tension easing
- Gold: $4,039, rose on benign PCE data
- USD/KRW: 1,544.36 won (+9.11 won)
🚀 SPCX (SpaceX) Update
SpaceX (SPCX) closed at $153.00, down approximately 2.0% from the prior session. The stock remains in a consolidation phase after peaking at an all-time high of $225.64 on June 16 and hitting a low of $147.11 on June 23. There were no major company-specific catalysts on June 25, though news emerged that SpaceX's recent $25 billion bond offering drew $89 billion in orders — a 3.5x oversubscription — one of the largest investment-grade order books in history. Market cap stands at approximately $2.04 trillion. The average analyst price target is $187.80, with 6 Buy ratings and 1 Sell.
⚠️ Investor Caution
The RAMageddon dynamic is creating a clear split in the technology sector. Memory producers (Micron, SK Hynix, Samsung) stand to benefit significantly, while memory-intensive device makers (Apple, Microsoft, consumer electronics) face intensifying margin pressure. This structural divergence is likely to deepen through the Q4 earnings season in July–August. Additionally, with USD/KRW approaching 1,550, investors in U.S. equities without currency hedging should monitor FX exposure closely.
👁 Tomorrow's Watch Points
S&P 500 7,300 support level: If tech weakness continues, the 7,300 support may be tested. A break below could open a path toward 7,200.
Memory sector follow-through: Watch whether AMD, QCOM, and AVGO extend gains in sympathy with Micron. AMD's AI memory exposure will be key.
U. of Michigan Consumer Sentiment (Jun 26, 10:00 AM ET): A reading below 68.0 (consensus) would signal consumer confidence deteriorating amid hardware price hikes.
Apple's next move at $270 support: Further negative headlines (iPhone price hike speculation) could push AAPL to test $270 support. Conversely, bargain hunters may step in after the sharp selloff.
USD/KRW 1,550 threshold: The won has been weakening steadily. A break above 1,550 would further amplify FX losses for unhedged Korean investors.
💡 Upcoming Key Events
- Jun 26 (Fri): U. of Michigan Consumer Sentiment (Final)
- Jun 30 (Mon): Chicago PMI
- Jul 01 (Wed): ISM Manufacturing PMI
- Jul 03 (Fri): June Non-Farm Payrolls (key event)
- Jul 14 (Tue): June CPI Release
📚 Sources
- Stock Market Today (June 25, 2026) — TheStreet
- Apple stock sinks 6% after MacBook and iPad price hikes — CNBC
- Apple shares plunge after it hikes prices on iPads and laptops — NBC News
- Micron tops Q3 2026 estimates, shares jump 14.6% — Investing.com
- Microsoft lifts price of Xbox consoles due to soaring component costs — CNBC
- Caterpillar stock moved up 5.28% on Jun 25 — TradingKey
- Goldman Sachs resets Micron stock target — Yahoo Finance
- GDP, core PCE, jobless claims and durable goods due Thursday — Investing.com
- SpaceX bond draws $89B demand — TradingKey