August 4, 2026 (Tue) · US ET Closing

[August 4, 2026] US Stock Market Closing Briefing — Dow & S&P 500 Hit Record Highs as Big Tech Powers Market Rally

SpaceX reports its first-ever earnings • AI infrastructure stocks surge • Iran diplomacy boosts sentiment

📊 Market Summary — 8/4 (Tue)

All major indexes surged to record territory. The Dow Jones climbed +1.71%, S&P 500 gained +1.79%, and Nasdaq led with +2.59%. SpaceX (SPCX) reported its debut quarterly earnings after market close, jumping +9.4% on the day. US-Iran diplomatic progress drove oil lower and sentiment higher, while Meta’s AI infrastructure expansion plans fueled a broad rally in the AI sector.

📈 Index Scorecard — 8/4 (Tue)

Dow Jones

54,085

▲ +1.71%

Record Close

S&P 500

7,736

▲ +1.79%

Record Close

Nasdaq

26,584

▲ +2.59%

Leads Indexes

Russell 2000

3,036

▲ +1.85%

Small Caps Rally

VIX

16.50

▼ Low

Fear Easing

Fear & Greed

Greed

▲ Rising

CNN Index

🧩 8 Key Market Indicators

WTI Crude Oil

~$69

▼ Falling (Iran deal hopes)

DXY (US Dollar)

~103

▶ Stable

10-Yr Treasury

~4.3%

▶ Range-bound

High Yield Spread

Tight

Risk appetite strong

MOVE Index

Moderate

Bond vol easing

ISM Mfg PMI

55.6

Expansion (Jun: +2.3pts)

AI Infra Capex

Surging

SpaceX $18.4B Q2

Jobs Report (Fri)

+88K

Expected (8/7)

📰 Today’s Top 5 Market Stories

1 SpaceX Posts First-Ever Earnings — Stock Jumps +9.4%

SpaceX (SPCX) released its debut Q2 2026 earnings report after Tuesday’s close. Starlink subscribers reached 12 million (+100% YoY), and the company reported it is on pace to hit $100B in annualized recurring revenue by year-end. Capital expenditures soared to $18.4B, with $15.8B devoted to AI infrastructure. Cash reserves hit $93.5B following the June IPO. Musk announced SpaceX will build AI compute exclusively using Nvidia’s Vera Rubin chips, and revealed a partnership with Nvidia for orbital data centers (Starmind AI1 satellite compute). SpaceX shares closed at $125.33, up 9.4% — best day since June 15 — though still below the $135 IPO price. Citi has a $200 target with a bull-case of $900+ if Starship milestones are achieved.

2 Dow & S&P 500 Close at Records — AI Sector Leads Gains

All four major indexes rallied sharply on Tuesday. Nasdaq led +2.59%, followed by S&P 500 (+1.79%), Russell 2000 (+1.85%), and Dow (+1.71%). Big Tech drove the gains, with AI infrastructure names surging broadly. Meta’s plans to double computing capacity in 2027 (to 14GW) and begin producing its own AI chip “Iris” in September boosted semiconductor and infrastructure stocks. Memory (Micron, SanDisk), equipment (AMAT, LRCX, ASML), and power/grid names (GEV, CAT, VRT) all outperformed.

3 US-Iran Diplomacy Fuels Rally — Oil Prices Fall

President Trump announced he called off a planned military strike on Iran in order to pursue negotiations over the Strait of Hormuz. “Get to work, everybody, and get it DONE,” Trump posted on Truth Social. WTI crude oil fell on the news, easing inflation concerns and boosting investor risk appetite. This diplomatic pivot was a key tailwind for stocks on both Monday and Tuesday.

4 Meta Chips & Capacity Expansion Drive AI Infra Boom

Reports surfaced that Meta plans to double its computing capacity to 14GW by 2027 and start producing its own AI chip “Iris” (designed with Broadcom, produced by TSMC) beginning in September. Meta also signed long-term memory supply deals with Samsung and SanDisk, and an optical components deal with Sumitomo Electric. However, Meta shares dipped ~3% on concerns its own chip strategy could reduce external semiconductor orders long-term.

5 ISM Manufacturing PMI Surges to 55.6 — Expansion Signal

The ISM Manufacturing Purchasing Managers’ Index rose 2.3 percentage points above June’s reading to 55.6 in July — well into expansionary territory (above 50). This was the marquee data point released Monday, indicating strengthening US manufacturing momentum ahead of Friday’s critical nonfarm payrolls report. AstraZeneca fell sharply after its Wainua drug failed a cardiomyopathy clinical trial, dragging pharma stocks.

🎯 Today’s Trading Strategy

Tactical Positioning: The rally is broad-based and sentiment-driven. With VIX at 16.5 and indexes at record highs, the near-term risk/reward has shifted. Proceed with discipline.

✔ OVERWEIGHT: AI infrastructure (Nvidia, AMAT, LRCX, Micron, Marvell, GLW), Power & Grid (GEV, VRT, CAT), Space Tech (SPCX on any pullback toward $110–$115).

⚠ CAUTION: Pharma names near clinical-trial events (AZN, IONS). SpaceX lock-up expiration incoming — watch for selling pressure. Salesforce (CRM) downgraded by KeyBanc.

⏰ Key Watch: Friday’s Nonfarm Payrolls (Aug 7, 8:30 AM ET) — expected +88K. A miss could test recent record levels. US-Iran talks progress or breakdown is the geopolitical wildcard.

📅 This Week’s Key Earnings Calendar

PLTR

After

Palantir Technologies

8/3 (Mon) · After close · Reported

AI gov & commercial contracts

SPCX

After

SpaceX — Maiden Earnings

8/4 (Tue) · After close · Reported · +9.4%

Starlink 12M subs, $100B ARR pace, Nvidia exclusive chip deal

MRK

Before

Merck & Co.

8/5 (Wed) · Before open

Oncology pipeline & Keytruda sales

PFE

Before

Pfizer

8/5 (Wed) · Before open

Revenue guidance & pipeline update

AMD

After

AMD (Advanced Micro Devices)

8/5 (Wed) · After close

MI300X AI GPU shipments & data center revenue

CAT

Before

Caterpillar

8/5 (Wed) · Before open

Heavy machinery demand & AI data center buildout exposure

📋 Economic Data Releases This Week

8/5 (Wed) ADP Private Payrolls

⏰ 8:15 AM ET  |  Preview of Friday jobs report
Key: Labor market pulse before NFP

8/7 (Fri) Nonfarm Payrolls (July 2026)

⏰ 8:30 AM ET  |  Consensus: +88,000 (prev: +57,000)
Key: Fed rate path — miss could spark vol; beat boosts rate-hike odds

8/7 (Fri) Unemployment Rate

⏰ 8:30 AM ET  |  Released alongside NFP
Key: Fed dual mandate check — labor market stability

✔️ Investor Checklist (4 Items)

✅ Monitor US-Iran talks — Strait of Hormuz negotiations are the #1 geopolitical wildcard. Progress = risk-on; breakdown = oil spike & risk-off.

✅ Watch SpaceX lock-up expiration — Insider selling pressure could emerge this week. The stock is still below its $135 IPO price despite Tuesday’s pop.

✅ AMD earnings Wednesday AH — A bellwether for AI GPU demand. Beats/raises on data center revenue could extend the tech rally; misses may deflate AI sector hype.

✅ Friday NFP is the macro event — Nonfarm Payrolls (+88K expected) will reset market expectations for the September Fed meeting. Position sizes accordingly before Thursday close.

📊 Previous Session Sector Performance (8/4)

💻 Technology

+3.1%

⚡ AI Infrastructure

+3.5%

🏦 Financials

+1.6%

🏭 Industrials

+1.8%

💡 Energy

-0.7%

💊 Healthcare

-0.9%

🛒 Consumer Disc.

+1.4%

📡 Communication

+1.2%

🔮 Market Outlook & Risk Factors

🟢 BULLISH CATALYSTS • Record closes across Dow, S&P 500 — broad-based market strength
• SpaceX’s debut earnings call exceeded expectations on Starlink growth and AI revenue trajectory
• AI infrastructure spending by hyperscalers (Meta 7GW → 14GW, SpaceX $18.4B capex) signals sustained AI demand cycle
• ISM Manufacturing PMI at 55.6 confirms economic expansion
• US-Iran diplomatic progress reduces geopolitical tail risk

🔴 RISK FACTORS • Friday’s NFP could reset Fed rate expectations — a strong number may renew rate-hike fears
• SpaceX lock-up expiration this week could trigger selling pressure; shares remain below IPO price
• Meta’s self-developed chip strategy (Iris) may reduce reliance on external suppliers — watch AVGO, TSMC
• AstraZeneca’s clinical trial failure highlights pharma binary risk
• Elevated valuations after back-to-back record closes leave little margin for earnings disappointments

🧠 Market Insights (Collected)

Analysis from financial sources indicates: Citi projects SpaceX could reach $900+ with Starship success (base target $200). BofA sees Micron as a core AI infrastructure beneficiary with a $1,550 target, citing $1.5T in expected AI capex by 2027 — 35–40% flowing into memory. Meta’s AI chip Iris (Broadcom-designed, TSMC-built) begins production in September, with memory supply agreements signed with Samsung and SanDisk. Cerebras announced European data center plans for year-end, while Salesforce was downgraded by KeyBanc. The AI infrastructure investment cycle is accelerating, with Nvidia positioned as the central compute beneficiary via SpaceX’s exclusive Vera Rubin commitment.

⚠️ Disclaimer: This briefing is for informational purposes only and does not constitute financial advice or a solicitation to buy or sell any securities. All index values are sourced from Yahoo Finance API. Market data reflects closing prices on August 4, 2026 (ET). Past performance does not guarantee future results. Please consult a licensed financial advisor before making investment decisions.