Market Summary
U.S. equities closed a choppy, holiday-shortened-feeling Friday session mixed, with large-cap growth and semiconductor strength offsetting broad-based weakness elsewhere. The S&P 500 added 12.74 points (+0.17%) to close at 7650.50, while the Nasdaq Composite jumped 104.25 points (+0.39%) to 26543.59. The Dow Jones Industrial Average lagged, shedding 95.40 points (-0.18%) to finish at 51682.64. The session began under pressure as rising Treasury yields and higher oil prices pushed the major averages to session lows in the first half of trading, before an afternoon reversal — led by semiconductor and mega-cap technology names — lifted the S&P 500 and Nasdaq back into positive territory.
Participation remained narrow throughout the session. Only three of eleven S&P 500 sectors finished higher (Information Technology, Industrials, Financials), while the Russell 2000 (-0.5%) and S&P Mid Cap 400 (-0.3%) continued to underperform large caps, underscoring the divergence between mega-cap growth and the broader market. Breadth was decisively negative, with decliners outpacing advancers on both the NYSE (1817 to 912) and Nasdaq (2886 to 2040). The Nasdaq’s afternoon strength was enough to make it the only major index to post a week-to-date gain, closing the week +0.7%, while the S&P 500 (-0.1%) and DJIA (-1.7%) finished the week lower, and the Russell 2000 slid -1.5%.
The rally was driven largely by a resurgent PHLX Semiconductor Index (+2.8%), with memory/storage names Sandisk and Seagate Technology posting double-digit and high-single-digit gains, respectively, on continued AI data-center demand narratives. Crypto-adjacent financials (Coinbase, Robinhood) also surged on regulatory tailwinds. Meanwhile, rate-sensitive sectors — utilities, materials, real estate — remained under heavy pressure as the 10-year Treasury yield climbed back to 5.00%, reinforcing a market still digesting this week’s hawkish Fed rate hike.
Market Snapshot
| Index | Level | Change | % Change |
|—|—|—|—|
| Dow Jones | 51,682.64 | -95.40 | -0.18% |
| Nasdaq Composite | 26,543.59 | +104.25 | +0.39% |
| S&P 500 | 7,650.50 | +12.74 | +0.17% |
Breadth (NYSE): Advancers 912 | Decliners 1,817 | Volume 4.35 bln
Breadth (Nasdaq): Advancers 2,040 | Decliners 2,886 | Volume 13.69 bln
WaveFinder Market Breadth (9/18/26):
- Primary Sentiment: Bearish (Bulls 808 / Bears 974)
- 4% Sentiment: Bullish (Bulls 146 / Bears 122)
- 40 SMA Sentiment: Bearish
- Stocks Above 20-day SMA: 27%
- Stocks Above 40-day SMA: 23.9%
- 9-Month Model: 20 Bulls / 14 Bears (36.84% bull follow-through)
Weekly Performance: Nasdaq +0.7% | S&P 500 -0.1% | Russell 2000 -1.5% | DJIA -1.7%
YTD Performance: Russell 2000 +15.3% | Nasdaq +14.1% | S&P 500 +11.8% | S&P Mid Cap 400 +10.5% | DJIA +7.5%
Sector Performance
Ranked by today’s session performance (Briefing.com):
1. Information Technology +0.8% — led by 2.8% surge in PHLX Semiconductor Index
2. Industrials +0.5%
3. Financials +0.1% — supported by crypto-exchange strength (COIN, HOOD)
4. Consumer Discretionary Unchanged — AMZN strength offset broader softness
5. Communication Services -0.7% — NFLX downgrade weighed
6. Materials -1.1% — NUE, STLD guidance disappointment
7. Utilities -1.3% — pressured by rising yields
8. Energy — Weak (Briefing.com Industry Watch; no specific % provided)
9. Real Estate — Weak (Briefing.com Industry Watch; no specific % provided)
10. Consumer Staples — Weak (Briefing.com Industry Watch; no specific % provided)
11. Health Care — Not specified in today’s data (posted +1.8% for the week)
Volatility Context (WaveFinder ATR): Utilities (-3.28%, falling, P5) and Real Estate (-2.91%, flat, P5) show the most pronounced declining volatility, while Health Care (+1.53%, flat, P37) and Energy (+0.24%, falling, P0) show elevated/stable ATR readings relative to sector norms.
Key Earnings & Movers
- Sandisk (SNDK) $1,791.82, +$177.43 (+10.99%) — AI data-center demand, tight storage supply
- Seagate Technology (STX) $858.79, +$55.66 (+6.93%) — same storage/AI demand tailwind
- Coherent (COHR) $317.36, +$21.38 (+7.22%) — expanded Pluggable Optical Line System for cloud/AI infrastructure
- Coinbase Global (COIN) $194.25, +$20.28 (+11.66%) — SEC “Innovation Exemption” for tokenized equities; Bitcoin above $81,000
- Robinhood Markets (HOOD) $119.82, +$10.01 (+9.12%) — same crypto regulatory catalyst
- Amazon (AMZN) $253.71, +$2.52 (+1.00%) — mega-cap strength, propped up Consumer Discretionary
- Netflix (NFLX) $71.77, -$3.54 (-4.70%) — Wells Fargo downgrade to Underweight from Equal Weight
- Nucor (NUE) $248.38, -$16.76 (-6.32%) — Q3 EPS guidance below consensus
- Steel Dynamics (STLD) $235.26, -$10.09 (-4.11%) — Q3 EPS guidance below consensus
- T-Mobile (TMUS) — new 52-week low, now down over 30% from 52-wk high of $242.37, amid competitive pressure from VZ/T and SpaceX mobile ambitions
- Xenon Pharmaceuticals (XENE) — under heavy pressure after pausing patient enrollment in MDD/BPD studies, overshadowing NDA submission for azetukalner in focal seizures
Stock Spotlight
Nucor (NUE) and Steel Dynamics (STLD) were among the day’s most notable decliners, falling 6.32% to $248.38 and 4.11% to $235.26, respectively, after both companies guided Q3 EPS below analyst expectations — a surprising outcome given that Q3 is typically a seasonally strong quarter for steelmakers as warmer weather boosts nonresidential construction and fabrication demand. Nucor guided to Q3 EPS of $5.55-$5.65, with anticipated earnings growth in steel mills and steel products offset by declines in raw materials and higher corporate/eliminations expense. Steel Dynamics guided to $5.34-$5.38, citing higher average realized selling values and lower scrap costs as supportive factors, alongside continued strong customer order activity.
Despite the guidance miss, the underlying commentary carried a more constructive tone than the headline numbers suggest. Both companies pointed to rising steel selling prices, supported by tight domestic supply, the 50% U.S. tariff on steel imports limiting import competition, and persistently low customer inventories. Demand remains solid — if not booming — across nonresidential construction, energy, automotive, and industrial end markets. The takeaway for investors: higher pricing power is intact, but near-term cost pressures and corporate expenses are tempering the pace of earnings acceleration that the seasonal setup might otherwise imply.
Bond Market & Treasuries
U.S. Treasuries closed out a poor week, sliding back toward 2026 yield highs on Friday. Shorter tenors led the weakness, pressured by a brief overnight rise in oil prices and the Bank of Japan’s 25-basis-point rate hike, which failed to strike a hawkish tone and weighed on the yen (though the currency recovered more than half its overnight loss during the U.S. session).
Yield Check (Friday change / Weekly change):
- 2-yr: 4.74% (+5 bps / +10 bps this week)
- 3-yr: 4.83% (+7 bps / +10 bps this week)
- 5-yr: 4.86% (+6 bps / +7 bps this week)
- 10-yr: 5.00% (+5 bps / +2 bps this week)
- 30-yr: 5.33% (+4 bps / -3 bps this week)
The 2s10s spread tightened 8 basis points to 26 bps, following a 6-bp narrowing the prior week. The long bond was the lone outperformer for the week, posting a modest gain even as shorter tenors and the 10-year note locked in weekly losses. Fed Governor Bowman commented on the 2023 Silicon Valley Bank failure review, noting regulators failed to address interest-rate risk and concentration vulnerabilities, and indicated the Fed will consider stress-test revisions. Separately, reports indicated the U.S. will delay tariffs on excess manufacturing capacity until after China President Xi’s visit.
Commodities
- WTI Crude Oil: $100.24/bbl, -1.8% — nearly flat for the week despite intraweek volatility
- Gold: $4,425.30/ozt, +0.6%
- Copper: $6.69/lb, +0.5%
- Silver: Not reported in available data
Overseas Markets
The Bank of Japan raised its key policy rate by 25 basis points to 1.25%, as widely expected, though the 7-2 vote and Governor Ueda’s non-hawkish tone weighed on the yen. USD/JPY rose 0.5% to 156.68, though the yen pared over half its overnight losses during U.S. trading hours. EUR/USD edged up 0.1% to 1.1485, GBP/USD gained 0.3% to 1.3394, and USD/CNH slipped 0.1% to 6.6949. The U.S. Dollar Index touched a seven-week high before settling little changed at 100.25, adding 1.1% for the week.
Key overseas data: Japan’s August National CPI rose 0.1% m/m (1.9% yr/yr), with Core CPI up 1.7% yr/yr (below the 1.8% estimate). South Korea’s August PPI rose 0.2% m/m (+7.9% yr/yr). UK August Retail Sales beat expectations, up 0.5% m/m (vs. -0.2% expected) and 2.4% yr/yr; Core Retail Sales rose 0.6% m/m and 2.7% yr/yr. Germany’s August PPI rose 1.1% m/m (vs. 0.6% expected), up 4.6% yr/yr. China’s August FDI fell 5.3% YTD. Eurozone’s July Current Account surplus came in at EUR27.6 bln, below the EUR30.7 bln expected. RBA Governor Bullock said global bond yield increases have not been disorderly but acknowledged emerging inflation risks; ECB President Lagarde reiterated a meeting-by-meeting approach to rate decisions.
Economic Data
- Industrial Production (August): Unchanged m/m (Briefing.com consensus: +0.3%) following an unrevised +0.2% in July. Total IP up 1.4% yr/yr. Softness attributed to a manufacturing output decline, potentially a pause after seven consecutive months of gains.
- Capacity Utilization (August): 76.3% (consensus: 76.4%), unchanged from July and 3.1 percentage points below its long-run average.
- Leading Economic Index (August): -0.1% (Briefing.com consensus: +0.2%) following a +0.2% increase in July.
Both releases came in softer than expected, reinforcing a mixed macro backdrop but having limited standalone market impact given the session’s focus on yields and sector rotation.
Looking Ahead
Week Ahead (Treasury/Economic Calendar):
- Monday: Nothing of note scheduled
- Tuesday: $69 billion 2-year Treasury note auction results at 13:00 ET
- Wednesday: Weekly MBA Mortgage Index at 7:00 ET (prior -4.1%); Flash September S&P Global U.S. Manufacturing PMI at 9:45 ET (prior 53.9); Flash September S&P Global U.S. Services PMI at 9:45 ET (prior 56.5); weekly crude oil inventories
Markets will continue to monitor the trajectory of the 10-year yield near the 5.00% threshold, follow-through in semiconductor/AI infrastructure leadership, and any incremental developments on U.S.-China trade dynamics ahead of the Xi visit.