Weekly Market Pulse: July 13–17 — CPI Cools, Banks Break Records, Tech Selloff Deepens
Week in Review
Wall Street closed the week of July 13–17 with a split personality. The S&P 500 fell ~1.6% to approximately 7,458 — its first losing week in three — as a powerful rally in bank stocks and the best inflation print in two years ran headlong into a deepening semiconductor selloff that pushed the PHLX Semiconductor Index 20% below its record high. The Nasdaq Composite dropped ~2.9% for the week, while the Dow Jones Industrial Average slipped ~0.4% [AP News; WSJ; MarketWatch].
The week’s defining theme was sector rotation at full force: money flooded out of high-multiple technology and semiconductor names into financials, energy, and consumer staples. Energy led all sectors (+2.3%) as Brent crude surged above $76/barrel after renewed U.S.-Iran hostilities. Technology fell ~4.3% — its worst weekly performance since spring [DoThingTrade Market Desk].
Key Market Dynamics
The bifurcation between financials (record earnings) and semiconductors (sharp selloff) tells a critical story for quantitative strategies. Goldman Sachs reported the best quarterly earnings in its 157-year history on July 14: diluted EPS of $20.98 (nearly double Q2 2025) on net revenues of $20.34 billion, a 39% year-over-year increase [Goldman Sachs IR; SEC Filing]. JPMorgan delivered EPS of $6.14 vs. $5.85 consensus, with revenue of $58.02 billion — described by analysts as a blowout [JPMorgan IR; Reuters].
On the same day, IBM crashed ~25% — the worst single-session drop in the company’s 115-year history — after issuing a preliminary Q2 earnings warning citing soft demand in software and infrastructure businesses. CEO Arvind Krishna’s letter to shareholders pointed to clients redirecting IT spending toward AI, directly cannibalizing IBM’s traditional revenue streams [CNBC; Forbes].
This is the central tension of 2026: the AI buildout is a massive demand driver for some (banks underwriting AI equity raises, TSMC’s fab utilization) while simultaneously destroying demand for others (IBM’s legacy enterprise IT, traditional storage, on-premise software). A sector-aware factor model that treats “tech” as a monolith will miss this divergence entirely.
Earnings & Economic Data
June CPI: Largest Monthly Drop Since April 2020
The Bureau of Labor Statistics released the June Consumer Price Index on Tuesday, July 14. Headline CPI fell 0.4% month-over-month — the largest single-month decline since April 2020 — pulling the annual rate to 3.5% from 4.2% in May. Economists had expected -0.2% monthly and 3.8% annual [BLS CPI Report USDL-26-1191].
Core CPI (excluding food and energy) was flat month-over-month, putting the 12-month rate at 2.6%, down from 2.9% in May. The primary driver was a 9.7% monthly drop in gasoline prices, with shelter rising just 0.1% — its smallest gain since January 2021.
Market reaction: CME FedWatch odds of a July 29 FOMC rate hike collapsed from ~47% to ~17% within minutes. The 10-year yield dropped approximately 10 basis points.
Fed Chair Warsh Testimony: Cautiously Hawkish
Fed Chair Kevin Warsh’s inaugural congressional testimony, delivered concurrently with the CPI release, struck a cautious tone. He warned against declaring “mission accomplished” on inflation despite acknowledging the better-than-expected data. Warsh declined to signal any specific move at the July 28-29 FOMC meeting but kept the door open for further tightening if energy prices re-escalate due to Iran tensions [CNBC; Reuters].
Big Bank Earnings: Record Quarter
| Bank | EPS | Revenue | YoY Profit Change |
|---|---|---|---|
| Goldman Sachs (GS) | $20.98 (record) | $20.34B | +39% rev, nearly 2x EPS |
| JPMorgan (JPM) | $6.14 vs $5.85 est. | $58.02B | +41% profit |
| Morgan Stanley (MS) | — | — | +58% profit (record equities trading) |
| BlackRock (BLK) | — | — | >$15T AUM (first time) |
The record results were fueled by a surge in investment banking fees (including the SpaceX IPO earlier in summer), elevated trading volume from AI-driven volatility and geopolitical uncertainty, and a booming advisory pipeline [Reuters; Goldman Sachs IR; JPMorgan IR; CNBC].
IBM (IBM): —25% Weekly
IBM’s preliminary Q2 earnings warning on Tuesday, July 14, triggered a ~25% single-day crash — erasing roughly $67 billion in market value and marking the worst day in the company’s history since Black Monday 1987. Infrastructure segment revenue fell 7% year-over-year; software was also soft. CEO Arvind Krishna cited clients shifting CapEx toward AI workloads [CNBC; Forbes; SEC Filing].
TSMC (TSM): Record Q2, CapEx Raise
Taiwan Semiconductor reported Q2 2026 revenue of $40.2 billion (+33.7% YoY) with gross margin of 67.7% and diluted EPS of $4.31 per ADR unit [TSMC IR; TechPowerUp]. The company raised its full-year 2026 revenue growth outlook to “slightly above 40%” and hiked capital spending guidance to $60-64 billion (from $52-56B), including a new $100B Arizona investment plan [Yahoo Finance; CNBC].
Despite the beat, TSM shares fell ~1.55% after hours as investors focused on lower Q3 margin guidance (65-67%) due to 2-nanometer technology ramp costs and the aggressive CapEx trajectory [CNBC; Benzinga].
Netflix (NFLX): —9% After Hours
Netflix reported Q2 EPS of $0.80 (vs. $0.79 estimate) on revenue of $12.56 billion (+13.4% YoY). However, the company guided Q3 revenue to $12.86 billion, missing analyst estimates of ~$13 billion — implying 11.7% growth, a deceleration. The stock dropped ~9% after hours [Barron’s; CNBC].
Other Notable Movers
- Abbott Laboratories (ABT): +11-12% — Q2 beat, raised full-year guidance
- PayPal (PYPL): Surged on Stripe + Advent $53B acquisition bid ($60.50/share, 28% premium)
- Intel (INTC): Down ~13% for the week — margin concerns ahead of Q2 report
- Travelers (TRV): Up on earnings beat (Dow component)
Tracked Ticker Ecosystem
Our price data collection as of Friday, July 18 close:
AI Semiconductors
| Ticker | Price | Weekly Change | Signal |
|---|---|---|---|
| NVDA | $202.81 | — | AI demand intact; PC chip margins a question |
| AVGO | $370.83 | — | ASIC contracts (3-5yr) are rate-insensitive |
| MRVL | $188.68 | ↓ | Optical interconnect demand structural |
| AMD | $495.76 | — | MI400 ramp is product-driven catalyst |
| QCOM | $171.78 | ↓ | Dragonfly data center pivot in early stages |
| ARM | $267.19 | ↓ | Architecture licensing supercycle intact but rotation hitting |
| TSM | $398.37 | ↓ | Record earnings but CapEx raise spooks market |
| SMCI | $24.18 | ↓ | Highest rate sensitivity — needs rate-cut narrative |
| INTC | $95.04 | ↓ 13% | Foundry narrative needs 18A execution proof |
| MU | $848.95 | ↓ | Memory stocks under pressure; HBM demand still strong |
Foundry & Equipment
| Ticker | Price | Signal |
|---|---|---|
| ASML | $1,747.58 | EUV demand structural; raised FY guidance |
| AMAT | $529.66 | WFE demand follows EUV cycle |
| LRCX | $313.30 | Equipment spending cycle intact |
Cloud & Hyperscaler
| Ticker | Price | Signal |
|---|---|---|
| GOOG | $346.12 | $80B AI infrastructure raise; earnings July 28 |
| MSFT | $393.82 | Copilot adoption maturing; Azure/AI revenue |
| AMZN | $247.23 | AWS AI workload migration incremental |
| META | $646.01 | Equity raise rumors — AI CapEx funding debate |
| ORCL | $126.41 | Cloud/AI buildout continues |
| AAPL | $333.74 | Steady; pivot to smart glasses |
Market Breadth & Volatility
The CBOE Volatility Index (VIX) rose 6.8% on Thursday to 16.73, remaining well below levels seen during peak Iran-war escalation weeks earlier.
Sector performance was sharply bifurcated:
| Sector | Weekly Change |
|---|---|
| Energy | +2.3% |
| Consumer Staples | + (defensive rotation) |
| Banks/Financials | + (record earnings) |
| Technology | −4.3% |
| Healthcare | −2.2% |
Eight of eleven S&P 500 sectors finished the week higher, but Technology’s steep decline dominated the headlines. The Russell 2000 underperformed alongside the Nasdaq, as momentum and growth factors took the brunt of the selling [DoThingTrade; AP News].
The semiconductor selloff bears watching through a quant lens: the SOX index at 20% below its record represents a ~2 standard deviation drawdown for the sector. Our HMM regime detection methodology flags this as a potential regime transition rather than a garden-variety pullback — particularly when combined with rising oil prices (inflation risk) and cooling CPI (easing expectations). The simultaneous compression of multiple expansion (rates) and multiple contraction (rotation) creates a regime that historically rewards low-volatility and quality factor tilts over pure momentum.
The Week Ahead
| Date | Event |
|---|---|
| Mon, July 20 | — |
| Tue, July 21 | Existing Home Sales (June) |
| Tue, July 22 | Tesla (TSLA) Q2 earnings — margins, energy storage, delivery guidance |
| Wed, July 23 | — |
| Thu, July 24 | Jobless Claims, PMI data |
| Mon, July 28 | Alphabet (GOOGL) Q2 earnings — hyperscaler AI CapEx test |
| Tue-Wed, July 28-29 | FOMC Meeting — rate hike odds ~17% after soft CPI |
| Wed, July 29 | Meta (META) Q2 earnings |
Key themes to watch:
The dominant macro catalyst is the July 28-29 FOMC meeting. After the June CPI print, the probability of a rate hike collapsed to ~17%, but renewed U.S.-Iran hostilities pushing oil higher could re-inflate those odds by decision day. The Fed is data-dependent, and oil data moves fast.
On the earnings front, Tesla (July 22) sets the tone for consumer/auto demand and energy storage growth. Alphabet (July 28) is the first hyperscaler to report — the market will parse whether massive AI capital expenditures ($80B raised) are translating into revenue acceleration. If GOOGL disappoints, expect a second leg of the tech/rotation selloff.
The U.S.-Iran geopolitical situation remains the wildcard. Brent crude above $76/barrel threatens to reverse June’s inflation progress. A sustained oil spike would (a) push July CPI higher, (b) force the Fed to maintain a hawkish stance, and (c) further compress tech multiples — all three of which would accelerate the rotation into value/energy.
For systematic strategies: this is a regime where volatility-aware allocation and dynamic factor exposure outperform static value/growth tilts. Monitor the correlation between oil prices and the SOX index — a regime of negative correlation signals inflation fears dominating the narrative, which historically rewards energy and financials over semiconductors and growth.
References
- AP News — How Major US Stock Indexes Fared Friday 7/17/2026
- CNBC — S&P 500 Closes Lower, Nasdaq Falls More Than 1% as Chip Stocks Slide (7/16)
- DoThingTrade — Stock Market Weekly Recap: July 14–18, 2026
- Goldman Sachs Q2 2026 Earnings Results Presentation
- SEC Filing — Goldman Sachs 2Q26 Earnings
- JPMorganChase Q2 2026 Financial Results
- CNBC — IBM Stock Craters After Earnings Warning (7/14)
- Forbes — Here’s Why IBM Had Its Worst Day Ever (7/14)
- CNBC — TSMC Q2 Profit Spikes Over 77% (7/16)
- TSMC Quarterly Results Q2 2026
- Reuters — Goldman Sachs Profit Tops Estimates on Trading Boom (7/14)
- Reuters — JPMorgan Posts Highest Quarterly Profit Ever (7/14)
- BLS — Consumer Price Index June 2026 (USDL-26-1191)
- Yahoo Finance — TSMC Q2 2026 Earnings
- CNBC — Bank Earnings Live Updates (7/14)
- [QuantBrainAI — Price Data Collection July 19, 2026]
All prices sourced from Yahoo Finance, CNBC, SEC filings, and QuantBrainAI price data collection. This is not financial advice — do your own research.
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