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US Stock Market Sector Analysis – Wednesday, March 18, 2026 BEARISH

Today, the US stock market experiences a significant downturn, with 21 sectors declining and only 1 sector gaining. The Magnificent 7, led by Apple (AAPL) and NVIDIA (NVDA), saw losses of 1.7% and 0.8%, respectively, contributing to the overall bearish sentiment. Notably, Starbucks (SBUX) faced a 5.0% drop following a downgrade, while defense stocks like Lockheed Martin (LMT) managed to rise amidst the chaos, gaining 0.9%. Overall, the S&P 500 is feeling the pressure as it grapples with continued selling pressure across most sectors.

Sector Performance (Base=100)

Today's Market Events

Key Headlines

  • Coty Revamps Board With Appointment of Five New Independent Directors Yahoo
  • Starbucks (SBUX) Block upgraded, Starbucks downgraded: Wall Street's top analyst calls Yahoo
  • Supermicro Advances Enterprises' Adoption of Accelerated Computing Across AI Factory, Data Center, and Edge with Expanded Portfolio Featuring NVIDIA RTX PRO Blackwell Server Edition GPUs Yahoo
  • Supermicro Unveils Modular AI Systems Powered By NVIDIA Blackwell GPUs And Vera CPUs For High-Performance Enterprise And Edge Computing Benzinga
  • Marvell (MRVL) Marvell Technology vs. Broadcom: Which Custom AI Chip Stock Has More Upside? Yahoo
  • Marvell (MRVL) Marvell Trades Choppy After Breakout Fake-Out Yahoo
  • McDonald’s faces a burger pricing challenge Yahoo
  • Restaurant Brands' Stock Price Has Upside Potential, Oppenheimer Says Yahoo

AI and Technology Sector Analysis

The AI and technology investment theme is under strain today, with the Magnificent 7 all trading lower, reflecting broader market apprehensions. NVIDIA (NVDA), currently priced at $180.40, and Supermicro's recent introduction of modular AI systems powered by NVIDIA GPUs highlight the ongoing evolution in AI infrastructure, yet their stocks are also struggling, indicating a cautious investor sentiment amid rising supply chain uncertainties.

US Stock Sector Overview

Sector 1D 5D 20D vs 50MA
Mag 7 (AI Spenders) -1.5% -1.3% -2.2% BELOW
Chip Supply Chain -0.5% +0.9% -1.2% BELOW
Infrastructure -2.1% -0.6% +5.6% BELOW
Enterprise Software -1.9% -2.8% +4.7% BELOW
Finance +0.1% +2.0% -9.4% BELOW
Healthcare -1.2% -1.7% -6.1% BELOW
Retail -2.1% -2.5% -1.6% BELOW
IT Services -1.8% +0.6% -5.5% BELOW
Airlines -1.2% +8.5% -10.5% BELOW
Hospitality & Travel -1.4% +2.9% +0.8% BELOW
Food & Restaurant -4.1% -5.0% -3.4% BELOW
Logistics -1.2% -1.0% -12.5% BELOW
Industrial -0.9% -1.3% -6.4% BELOW
Cybersecurity +0.1% +0.7% +2.5% BELOW
Chip Equipment -1.4% +3.7% -6.0% BELOW
Data Center REITs -0.6% +0.0% +3.9% ABOVE
Utilities -1.7% -1.0% +1.7% ABOVE
Energy -0.2% +1.7% +5.9% ABOVE
Defense & Aerospace +0.2% -0.5% -1.3% ABOVE
Telecom -2.2% -1.9% -1.1% ABOVE
Media & Entertainment -0.3% +0.2% +8.4% BELOW
Biotech -2.4% -3.3% -6.5% BELOW
Materials -1.4% -1.7% -0.0% ABOVE
Analog & Embedded Chips -0.9% +1.8% -14.1% BELOW

Sector Strength

Defense & Aerospace +0.2% 20d: -1.3%
Lockheed Martin (LMT) +0.9% (20d: -3.6%), RTX Corp (RTX) +0.6% (20d: -0.1%), General Dynamics (GD) -0.8% (20d: -0.3%) [<50MA]

Sector Warnings

Food & Restaurant -4.1% 20d: -3.4%
Starbucks (SBUX) -5.0% (20d: -3.3%) [<50MA], McDonald's (MCD) -3.2% (20d: -3.5%) [<50MA]
Biotech -2.4% 20d: -6.5%
Amgen (AMGN) -2.7% (20d: -6.4%) [<50MA], Gilead (GILD) -2.2% (20d: -6.5%)
Telecom -2.2% 20d: -1.1%
T-Mobile (TMUS) -3.2% (20d: -3.6%), Verizon (VZ) -1.8% (20d: +2.0%), AT&T (T) -1.6% (20d: -1.7%)
Infrastructure -2.1% 20d: +5.6%
Super Micro (SMCI) -3.7% (20d: -5.6%) [<50MA], Dell (DELL) -2.5% (20d: +25.3%), Cisco (CSCO) -2.1% (20d: -1.2%) [<50MA]
Retail -2.1% 20d: -1.6%
Walmart (WMT) -2.5% (20d: -2.3%) [<50MA], Costco (COST) -1.6% (20d: -0.8%)

Sector Deep Dive

The Chip Supply Chain sector is facing notable challenges, down 0.5% today and struggling significantly below its 50-day moving average. Marvell (MRVL) is particularly feeling the heat, with a 3.5% dip to $87.62, signaling concerns over its growth trajectory amidst stiff competition and market volatility. Conversely, Intel (INTC) and AMD showed resilience, gaining 2.2% to $45.03 and 1.6% to $199.46, respectively, as they capitalize on demand for advanced chip technologies.

In the Enterprise Software sector, the downtrend has deepened, declining 1.9% today and a staggering 22.9% over the past 50 days. Adobe (ADBE) is a key underperformer, shedding 3.2% to $246.00, reflecting investor skepticism about growth in a slowing economy. This sector's challenges are compounded by shifting spending priorities as companies reassess their software investments in light of economic conditions.

The Food & Restaurant sector is under significant pressure, with a notable 4.1% decline today. McDonald's (MCD) and Starbucks (SBUX) both faced steep losses, down 3.2% to $315.73 and 5.0% to $92.66 respectively, highlighting the challenges of rising input costs and changing consumer preferences. This sector's downturn is further exacerbated by broader economic concerns impacting discretionary spending.

Market Breadth Analysis

US stock market breadth analysis shows 6 of 24 sectors trading above their 50-day moving average, while 18 are below. With the majority of sectors below the 50-day MA, medium-term momentum is deteriorating. The 20-day breadth shows 16 sectors in negative territory, pointing to widespread selling pressure.

Interactive Charts

S&P 500 & NASDAQ 100

20-Day Sector Performance

1-Day vs 5-Day Sector Change

Active Alerts

HIGH Airlines down -10.5% over 20 days
HIGH Logistics down -12.5% over 20 days
HIGH Analog & Embedded Chips down -14.1% over 20 days
HIGH Enterprise Software down -22.9% over 50 days
HIGH Healthcare down -16.0% over 50 days
HIGH IT Services down -22.8% over 50 days
HIGH Airlines down -16.3% over 50 days
HIGH 9 sectors declining >5% over 20 days: Finance, Healthcare, IT Services, Airlines, Logistics, Industrial, Chip Equipment, Biotech, Analog & Embedded Chips
HIGH 6 sectors declining >10% over 50 days: Enterprise Software, Finance, Healthcare, IT Services, Airlines, Cybersecurity

Stock-Level Detail

Mag 7 (AI Spenders) Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
NVDA $180.40 -0.8% -1.5% -4.0% BELOW 2
GOOG $306.30 -1.0% +1.0% +0.9% BELOW 1
META $615.68 -1.1% -3.4% -4.5% BELOW 2
TSLA $392.78 -1.6% -0.6% -4.6% BELOW 1
AAPL $249.94 -1.7% -2.3% -4.1% BELOW 1
MSFT $391.79 -1.9% -2.5% -1.7% BELOW 2
AMZN $209.87 -2.5% +0.2% +2.4% BELOW 1
Chip Supply Chain Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
INTC $45.03 +2.2% -0.5% +0.9% BELOW 0
AMD $199.46 +1.6% +0.9% -1.9% BELOW 0
ARM $128.36 +0.8% +11.5% +1.1% ABOVE 0
QCOM $130.47 -0.9% -0.5% -7.6% BELOW 1
AVGO $315.93 -1.7% -6.0% -5.4% BELOW 2
TSM $339.57 -1.9% +1.1% -5.8% BELOW 1
MRVL $87.62 -3.5% -0.1% +10.1% ABOVE 2
Infrastructure Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
HPE $21.53 -0.6% -0.2% +0.7% BELOW 2
VRT $264.71 -1.4% -0.2% +8.9% ABOVE 1
CSCO $77.60 -2.1% -0.2% -1.2% BELOW 1
DELL $149.21 -2.5% -0.5% +25.3% ABOVE 2
SMCI $30.35 -3.7% -1.8% -5.6% BELOW 2
Enterprise Software Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
CRM $194.34 -0.5% -2.5% +4.9% BELOW 2
PLTR $152.77 -1.5% -0.5% +13.3% ABOVE 1
NOW $113.71 -2.6% +0.7% +5.9% BELOW 1
ADBE $246.00 -3.2% -8.8% -5.1% BELOW 1
Finance Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
JPM $287.74 +0.3% +1.7% -6.6% BELOW 0
GS $805.48 -0.2% +2.3% -12.1% BELOW 1
Healthcare Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
UNH $284.33 -1.1% +2.6% -1.9% BELOW 1
LLY $918.05 -1.3% -6.1% -10.3% BELOW 2
Retail Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
COST $979.92 -1.6% -2.3% -0.8% ABOVE 3
WMT $121.98 -2.5% -2.7% -2.3% BELOW 3
IT Services Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
IBM $251.60 -1.8% +1.6% -1.8% BELOW 1
ACN $195.15 -1.8% -0.5% -9.2% BELOW 2
Airlines Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
UAL $92.51 -0.7% +6.9% -15.9% BELOW 1
DAL $63.81 -1.6% +10.1% -5.1% BELOW 1
Hospitality & Travel Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
BKNG $4381.39 -1.4% +3.9% +9.3% BELOW 1
MAR $322.52 -1.5% +2.0% -7.6% BELOW 1
Food & Restaurant Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
MCD $315.73 -3.2% -2.5% -3.5% BELOW 2
SBUX $92.66 -5.0% -7.5% -3.3% BELOW 5
Logistics Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
UPS $96.84 -1.0% -1.1% -16.2% BELOW 1
FDX $349.74 -1.4% -1.0% -8.7% ABOVE 1
Industrial Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
HON $229.92 -0.6% -1.5% -4.0% ABOVE 2
CAT $693.62 -1.2% -1.0% -8.8% BELOW 1
Cybersecurity Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
CRWD $435.81 +0.6% -1.3% +3.2% ABOVE 0
ZS $155.99 -0.0% +2.9% -7.7% BELOW 1
PANW $168.91 -0.2% +0.5% +11.9% BELOW 1
Chip Equipment Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
LRCX $224.71 -0.8% +7.3% -5.3% BELOW 1
AMAT $349.47 -0.8% +3.6% -5.5% ABOVE 1
ASML $1355.17 -2.4% +0.3% -7.1% BELOW 1
Data Center REITs Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
EQIX $973.56 -0.3% +0.2% +6.6% ABOVE 2
DLR $178.94 -0.8% -0.1% +1.2% ABOVE 2
Utilities Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
DUK $130.75 -1.7% -0.8% +3.5% ABOVE 2
NEE $90.96 -1.7% -0.8% -0.1% ABOVE 2
SO $96.54 -1.8% -1.3% +1.6% ABOVE 2
Energy Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
CVX $198.61 +0.3% +0.8% +7.5% ABOVE 0
XOM $157.59 -0.8% +2.6% +4.4% ABOVE 1
Defense & Aerospace Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
LMT $642.28 +0.9% -1.6% -3.6% ABOVE 0
RTX $204.56 +0.6% +0.7% -0.1% ABOVE 0
GD $353.36 -0.8% -0.5% -0.3% BELOW 1
Telecom Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
T $27.41 -1.6% +0.1% -1.7% ABOVE 1
VZ $49.59 -1.8% -2.1% +2.0% ABOVE 3
TMUS $206.62 -3.2% -3.6% -3.6% ABOVE 3
Media & Entertainment Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
NFLX $94.70 +0.4% +0.4% +23.0% ABOVE 0
DIS $99.42 -0.9% -0.0% -6.2% BELOW 1
Biotech Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
GILD $141.29 -2.2% -2.1% -6.5% ABOVE 2
AMGN $351.48 -2.7% -4.4% -6.4% BELOW 2
Materials Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
LIN $488.57 -1.1% -0.4% -0.3% ABOVE 2
APD $281.42 -1.7% -3.1% +0.2% ABOVE 2
Analog & Embedded Chips Show individual tickers
Ticker Price 1D 5D 20D vs 50MA Down Days
MCHP $64.71 +0.2% +3.2% -15.6% BELOW 0
TXN $190.78 -1.9% +0.4% -12.5% BELOW 1

Key Stock Movers

Today's biggest movers by absolute percentage change: Starbucks (SBUX) (Food & Restaurant) fell 5.0% to $92.66. Super Micro (SMCI) (Infrastructure) fell 3.7% to $30.35. Marvell (MRVL) (Chip Supply Chain) fell 3.5% to $87.62. McDonald's (MCD) (Food & Restaurant) fell 3.2% to $315.73. Adobe (ADBE) (Enterprise Software) fell 3.2% to $246.00. These individual stock movements were key drivers of their respective sector performance.

Risk and Opportunity Assessment

On the risk side, 9 high-severity alerts are currently active, signaling significant sector declines that warrant portfolio risk management attention. Consider reducing exposure to affected sectors and tightening stop-loss levels.

US Stock Market Outlook

Looking ahead, the market appears poised for continued volatility, with 18 sectors trading below their 50-day moving averages. The breadth metrics indicate significant weakness, warranting caution among investors. Positioning in defensive sectors may be prudent, especially given the active alerts on multiple sectors facing steep declines over both short and long-term time frames.

Hypothetical Portfolio

SIMULATION
Value $102,681
P&L +2.68%
Today -1.26%
View full portfolio → Simulation only. Not investment advice.
← 2026-03-17
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