5 min read

Stock Market News — August 12, 2026 — Evening Update — Last 12 Hours (Pacific Time)

AI infrastructure stocks CoreWeave (+19%), Nebius (+28%), and Super Micro (+20%) surged on blowout earnings and robust AI capex spending, while Cerebras plummeted 16% on disappointing results. July's in-line CPI report kept rate-cut bets alive, pushing U.S. stocks near record highs and South Korea's

Executive Summary

The AI infrastructure trade roared back to life, with CoreWeave (+19%), Nebius (+28%), and Super Micro (+20%) leading a "neocloud" sentiment shift after blowout earnings — even as Cerebras cratered 16% on disappointing results. July CPI landed in-line, keeping U.S. futures flat and stocks near record highs, while South Korea's KOSPI officially entered a bull market on a renewed chip rally.

Sentiment Breakdown

Sentiment Count Percentage
🟢 Bullish 68 42.5%
🟡 Neutral 58 36.3%
🔴 Bearish 34 21.2%

Net Sentiment: 🟢 Bullish — AI capex enthusiasm and record-high indices dominate, tempered by pockets of earnings disappointment (Cerebras, StubHub, Tencent) and rating downgrades.

Top Market-Moving Headlines

🟢 AI Infrastructure | CoreWeave and Nebius surge after blowout Q2 earnings trigger neocloud sentiment shift
CoreWeave +19% to $107.45, Nebius +28% to $247.05 — Nebius revenue exploded 454% YoY. A clear signal that AI buildout spending remains robust.

🟢 Semiconductors | Super Micro Computer surges nearly 20% as annual guidance exceeds forecasts
139% EPS beat ($1.70 vs $0.71) and strong full-year guidance validate sustained AI server demand.

🔴 AI Chips | Cerebras shares plummet 16% after results fail to impress investors
The AI chip designer slumped to $219 after-hours, a cautionary counterpoint to the neocloud euphoria.

🟢 Macro/Inflation | Stocks end largely higher as traders pare rate hike bets after July CPI report
In-line inflation kept the rate-cut narrative alive; futures steadied, indices near records.

🟢 Networking | Cisco forecasts annual revenue above estimates on sustained AI spending
FY2027 guidance beat Wall Street — though shares slipped 2-5% after-hours despite the beat.

🟢 Optical Networking | Why is Ciena stock surging today? / Lumentum 15% surge
Lumentum posted 109% YoY revenue growth to $1.01B; peer strength lifted Ciena +14.5%.

🟢 International | KOSPI enters bull market as AI rally returns; Japan gains, China tech mixed
KOSPI rebounded ~20% from July lows on chip strength, exiting bear-market territory.

🟢 M&A | Anthropic in talks to buy AI startup Decart for about $6 bln
Nvidia-backed Decart target underscores aggressive AI consolidation.

🟢 SpaceX | SpaceX shares soar 11% as Wall Street bets on Musk's 'real-world' AI ambitions
Morgan Stanley's Adam Jonas endorsement drove the surge.

🟢 Fast Food M&A | Peltz-led group preparing bid to take Wendy's private
Wendy's surged 11.3% to $8.40 on the Trian buyout report.

🔴 China Tech | Why is Tencent stock sliding today?
Fell 3.7% to HK$444.4 after Q2 earnings disappointed.

🟢 Hardware Earnings | Why is Enersys stock surging today?
Rose 11.8% after-hours on strong Q1 FY2027 results.

🔴 Ticketing | Why is StubHub stock tumbling today?
Plunged 13.7% to $7.37 on weak Q2 2026 results.

🔴 Retail Leadership | Home Depot stock falls as CEO Decker takes medical leave
Shares dropped 2.7% on the 8-K disclosure.

🟢 Banking/India | Bank of America to buy up to 49.9% stake in Jio Credit for $1.92bn
Major India expansion into non-bank lending.

🟢 Airlines | Why is Air Canada stock surging today?
Rallied 9.8% to $29.95 on a buyback/capital return plan.

🟢 Canada | Canada's TSX hits record close for third straight day as miners, tech gain
TSX outpacing S&P 500 YTD (+15.13% vs +12.69%).

🟢 Grocery | Why is Grocery Outlet stock surging today?
Jumped 13.2% after-hours to $11.52 on results.

🔴 Litigation | Meta, 29 states head to court in biggest test yet of youth social media litigation
Landmark California trial poses regulatory risk to Meta.

🟢 Sports/M&A | Iger, Kushner purchasing Lakers for record $12.5 billion
Record franchise valuation signals continued asset appetite.

Tickers in Focus

Ticker Price/Change Context
CRWV +19% to $107.45 Blowout Q2, neocloud leader
NBIS +28% to $247.05 Revenue +454% YoY
SMCI +20% 139% EPS beat, strong guidance
CBRS -16.4% to $219 Earnings disappointed
CSCO -2.2% to -5% AH Beat but sold off
COHR -3.3% to $343.81 Blowout Q4, shares dipped
LITE +15% to $946.09 109% YoY revenue growth
CIEN +14.5% Lifted by optical peers
ENS +11.8% AH Strong Q1 FY2027
STUB -13.7% to $7.37 Weak Q2
WEN +11.3% to $8.40 Peltz take-private bid
HD -2.7% CEO medical leave
TCEHY -3.7% to HK$444.4 Q2 miss
NFLX New stake Ackman/Pershing Square
NLST +14.5% ITC complaint vs Micron
AEHR +11.8% $22M AI systems order
AC +9.8% to $29.95 Buyback plan
GOCO +13.2% AH Strong results
MU $921.10 Near $925-935 resistance
NVDA Testing $225 Bull-bear standoff

Market Implications

The dominant story is a decisive re-rating of AI infrastructure names. CoreWeave, Nebius, and Super Micro's blowouts, combined with Cisco, Lumentum, and Coherent's AI-driven guidance, confirm capex is not slowing. Yet Cerebras's 16% drop and the muted reactions to Cisco/Coherent beats hint that expectations are now sky-high — earnings must be flawless to satisfy the tape.

With July CPI in-line and PPI plus jobless claims due Thursday, rate-cut positioning remains constructive but data-dependent. The Dollar Index's bear flag near 99.88 and softening yields support risk assets, but the S&P 500's "bull trap risk near all-time high" and Nasdaq's stall below 30,000 suggest the melt-up may need fresh catalysts.

International rotation is notable: KOSPI's bull-market entry, Japan's Nikkei stretching to overbought (RSI 74.5), and TSX record highs show the rally is broadening globally — while European markets and Chinese tech lag on Mideast risk and Tencent weakness.

Vlad's Key Takeaways

  • CRWV/NBIS/SMCI — Neocloud earnings blowouts reignited the AI capex trade.
  • CBRS — 16% plunge shows AI-chip valuations leave no room for misses.
  • CSCO — Beat and raised, but shares fell; high bar for AI winners.
  • LITE/CIEN/COHR — Optical networking is a clear AI-buildout beneficiary.
  • KOSPI — Entered bull market on chip rally, +20% off July lows.
  • CPI — In-line print keeps rate-cut hopes alive; PPI next.
  • Anthropic/Decart — $6B AI M&A signals sector consolidation heating up.
  • WEN — Peltz take-private bid sent shares +11.3%.
  • SpaceX — +11% on Morgan Stanley "real-world AI" endorsement.
  • BAC/Jio Credit — $1.92B India lending push.
  • Meta — 29-state youth social-media trial is a major regulatory overhang.
  • HD — CEO medical leave adds leadership uncertainty.
  • TCEHY — Q2 miss drags China tech sentiment.
  • STUB — 13.7% tumble on weak quarter.
  • TSX — Record close, outpacing S&P 500 YTD.
  • Lakers — $12.5B record sale reflects premium asset demand.
  • NLST — ITC complaint vs Micron drove 14.5% surge.
  • Ford — Shifting Lincoln production from China to U.S. by 2030.
  • NVDA/MU — Both testing key resistance; semis at inflection.
  • DXY — Bear flag near completion supports risk assets.

Thematic Analysis

AI Infrastructure Supercycle 🟢
CoreWeave, Nebius, Super Micro, Cisco, Lumentum, and Coherent all pointed to relentless AI capex. The neocloud sentiment shift is real, but Cerebras's collapse and muted post-beat reactions warn that the market now demands perfection from AI names.

Global Equity Melt-Up 🟢
KOSPI's bull-market entry, Nikkei's overbought stretch, and TSX record highs show the rally broadening beyond U.S. mega-caps. Chart signals (S&P bull-trap risk, Nasdaq stall) suggest caution near record highs, but momentum remains firmly intact.

Rate-Cut Positioning 🟡
In-line July CPI let traders pare hike bets and lifted stocks. Thursday's PPI and jobless claims are the next test; the Dollar's bear flag and steady yields reinforce a dovish-leaning backdrop.

M&A & Corporate Actions 🟢
Anthropic-Decart ($6B), Peltz-Wendy's take-private, BofA-Jio Credit ($1.92B), and the $12.5B Lakers sale reflect abundant dealmaking appetite across AI, food, finance, and sports.

Regulatory & Credit Risk 🔴
Meta's 29-state youth-litigation trial, Paramount weighing a CNN sale to settle antitrust suits, and S&P downgrades (Hertz, Skillsoft, Papa John's) highlight lingering legal and leverage risks beneath the bullish surface.


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