Stock Market Today: Mega-Cap Strength Keeps Stocks Above Water
The main benchmarks eked out increases Monday as several mega-cap stocks gained ground.
Stocks struggled for direction Monday. Market participants are cautious looking ahead to a busy batch of economic data. Most notable in this week's lineup is Friday's release of the Federal Reserve's preferred inflation measure, especially after the central bank last week forecast higher-for-longer interest rates.
The next inflation reading comes Friday morning with the August personal consumption and expenditures (PCE) index, which measures consumer spending. The latest readings on personal income and spending will also be released.
This confluence of economic reports, as well as the resumption of student loan repayments and a possible government shutdown could "create amplified market volatility," says Mark Hackett, chief investment officer of Nationwide. "Investors should brace for a week that could redefine market sentiment and strategy for the quarter ahead."
From just $107.88 $24.99 for Kiplinger Personal Finance
Become a smarter, better informed investor. Subscribe from just $107.88 $24.99, plus get up to 4 Special Issues
Sign up for Kiplinger’s Free Newsletters
Profit and prosper with the best of expert advice on investing, taxes, retirement, personal finance and more - straight to your e-mail.
Profit and prosper with the best of expert advice - straight to your e-mail.
Today, though, the price action was relatively muted with the major indexes bouncing between positive and negative territory throughout Monday's session. At the close, the Nasdaq Composite (+0.5% at 13,271), the S&P 500 (+0.4% at 4,337) and the Dow Jones Industrial Average (+0.1% at 34,007) were all modestly higher.
Amazon's $4 billion AI investment
Amid a relatively bare economic calendar, investors took in single-stock news. Amazon.com (AMZN) sparked several headlines after it announced a collaboration with Anthropic, an artificial intelligence (AI) startup. As part of the deal, Amazon will invest $4 billion in Anthropic, taking a minority stake in the firm. Meanwhile, Anthropic will use Amazon Web Services (AWS) as its primary cloud provider.
AMZN shares climbed 1.7% Monday, while fellow mega-cap stocks Apple (AAPL, +0.7%) and Nvidia (NVDA, +1.5%) also gained ground.
Williams-Sonoma (WSM) was another big mover with shares rising 11.6% after regulatory filings revealed Green Equity Investors increased its passive stake in the home goods retailer to 5%. Today's gains just add to the consumer discretionary stock's impressive year-to-date return, with WSM up roughly 36% vs a 13% return for the broader market.
Energy stocks keep climbing
Energy stocks were also a pocket of strength Monday, with the sector outperforming (+1.3%) even as U.S. crude futures fell 0.7% to $89.42 per barrel. Oil and gas companies Coterra Energy (CTRA, +2.0%) and EOG Resources (EOG, +2.5%) were two notable gainers.
"Energy stocks are now reasserting their market leadership after gasoline prices in August rose 10.5% in the Consumer Price Index (CPI) and a whopping 20% in the Producer Price Index (PPI)," says Louis Navellier, chairman and founder of Navellier & Associates. In addition to an acute inventory decline, "there is a diesel shortage again, especially in Europe, so the U.S. is exporting more distillates, which is causing the trade deficit to decline and boost gross domestic product (GDP) growth."
Related content
Profit and prosper with the best of Kiplinger's advice on investing, taxes, retirement, personal finance and much more. Delivered daily. Enter your email in the box and click Sign Me Up.

With over a decade of experience writing about the stock market, Karee Venema is the senior investing editor at Kiplinger.com. She joined the publication in April 2021 after 10 years of working as an investing writer and columnist at a local investment research firm. In her previous role, Karee focused primarily on options trading, as well as technical, fundamental and sentiment analysis.
-
Will Soaring Health Care Premiums Tank Your Early Retirement?If you're under 65 and want to retire soon, your plan may be derailed by skyrocketing ACA marketplace premiums. Here's what you can do.
-
I'm feeling down since my grandkids left after the holidays.We asked therapists for advice on how grandparents can handle the post-holiday blues.
-
5 Golden Rules We (Re)learned in 2025 About InvestingSome investing rules are timeless, and 2025 provided plenty of evidence demonstrating why they're useful. Here's a reminder of what we (re)learned.
-
Stocks Struggle for Gains to Start 2026: Stock Market TodayIt's not quite the end of the world as we know it, but Warren Buffett is no longer the CEO of Berkshire Hathaway.
-
If You'd Put $1,000 Into Lowe's Stock 20 Years Ago, Here's What You'd Have TodayLowe's stock has delivered disappointing returns recently, but it's been a great holding for truly patient investors.
-
Stocks Extend Losing Streak After Fed Minutes: Stock Market TodayThe Santa Claus Rally is officially at risk after the S&P 500's third straight loss.
-
If You'd Put $1,000 Into 3M Stock 20 Years Ago, Here's What You'd Have TodayMMM stock has been a pit of despair for truly long-term shareholders.
-
Santa Claus Rally at Risk as Tech Stocks Slump: Stock Market TodayThe Nasdaq Composite and Dow Jones Industrial Average led today's declines as investors took profits on high-flying tech stocks.
-
Cooler Inflation Supports a Relief Rally: Stock Market TodayInvestors, traders and speculators welcome much-better-than-hoped-for core CPI data on top of optimism-renewing AI earnings.
-
AI Stocks Lead Nasdaq's 398-Point Nosedive: Stock Market TodayThe major stock market indexes do not yet reflect the bullish tendencies of sector rotation and broadening participation.
-
Stocks Bounce Back With Tech-Led Gains: Stock Market TodayEarnings and guidance from tech stocks and an old-school industrial lifted all three main U.S. equity indexes back into positive territory.