Sean Williams

TMFUltraLong

Sean Williams is a data-driven Motley Fool contributing analyst who's been investing for 26 years and has penned north of 15,000 articles. You'll find him at the intersection of politics and investing tackling macroeconomic topics of interest (Social Security and Donald Trump's economic/tax policies), analyzing which stocks billionaire investors (e.g., Warren Buffett) are buying and selling, and digging into how the world's most-influential businesses and trends -- everything from the evolution of artificial intelligence (AI) to the next stock split -- are changing Wall Street. He holds a B.A. in Economics from the University of California, San Diego. Follow @AMCScam

Recent Articles by Sean Williams

Money Manager Stock Chart Reflection Glasses Laptop Buy Sell Getty

Nov 11, 2025 by Sean Williams

Billionaire Stanley Druckenmiller Sold His Fund's Entire Stakes in Nvidia and Palantir for a Scorching-Hot Drug Stock That's Up 218% Since Mid-2023

Duquesne Family Office's billionaire boss has gone full contrarian by selling Wall Street's two artificial intelligence (AI) darlings and piling into a previously struggling pharmaceutical stock.

Costco Wholesale Warehouse Groceries Staples Discretionary Retail GDP Inflation

Nov 11, 2025 by Sean Williams

Costco's New Polarizing Policy Is Making the Company Bank -- Though Not All Members Are Happy About It

Costco Wholesale has drawn a definitive line in the sand between its top tier and entry-level cardholders.

Money Manager Stock Chart Volume Buy Sell Invest Getty

Nov 10, 2025 by Sean Williams

IonQ's Operating Results Highlight a Grim Reality for Quantum Computing Stocks Rigetti Computing and D-Wave Quantum

IonQ's triple-digit sales growth exposes a big flaw in the quantum computing bull thesis.

Money Manager Stock Chart Market Level 2 Data Invest Getty

Nov 10, 2025 by Sean Williams

"Big Short" Investor Michael Burry Just Placed a Big Wager Against Artificial Intelligence (AI) Giants Nvidia and Palantir -- and History Is on His Side

One of Wall Street's most famous contrarians just made a sizable bet on the AI bubble popping.

Senior Holding Assortment Cash Bills Social Security Retire Getty

Nov 9, 2025 by Sean Williams

Retirees in These 5 States Will Receive the Biggest Social Security Raise in 2026

A history-making Social Security cost-of-living adjustment (COLA) in 2026 will lift nominal-dollar retired-worker checks well above the national average.

NYSE Floor Trader Stock Market Invest Buy Sell Fed Wall Street Getty

Nov 9, 2025 by Sean Williams

The Newest History-Making Moment for the S&P 500 Can Serve as a Dire Warning for Wall Street and Investors

A first-of-its-kind milestone for Wall Street's benchmark index is sending all the wrong signals.

President Donald Trump WH Photo AI Summit Joyce N Boghosian

Nov 8, 2025 by Sean Williams

An Aggressive Social Security Garnishment Is Underway for Over 1,000,000 Beneficiaries -- but Some May Be Able to Legally Avoid It

President Donald Trump's administration is aiming to claw back $23 billion in Social Security overpayments.

NYSE Floor Trader Invest Buy Sell Options Stock Exchange Getty

Nov 8, 2025 by Sean Williams

We Just Witnessed an Ultra-Rare S&P 500 Event That's Occurred 5 Times in 55 Years -- and History Is Crystal Clear What Comes Next

This particular correlative event has been linked to consistent double-digit upside in Wall Street's benchmark index.

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Nov 7, 2025 by Sean Williams

This Is the Smartest Stock to Buy to Take Advantage of the Quantum Computing Revolution -- and It Isn't IonQ, Rigetti Computing, or D-Wave Quantum

There's a highly profitable (and historically inexpensive) dual-industry leader that provides investors with exposure to the evolution of quantum computing.

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Nov 7, 2025 by Sean Williams

3 Magnificent Ultra-High-Yield Dividend Stocks -- Sporting an Average Yield of 8.5% -- to Buy With Confidence in November

These supercharged income stocks have the necessary catalysts to pad the pocketbooks of patient investors.

Paper Certificate Shares Invest Stock Split Market Reverse Getty

Nov 4, 2025 by Sean Williams

1 Sensational Stock-Split Stock to Buy in November, and 1 That's Rife With Red Flags to Avoid

A premier stock-split stock that's gained 58,000% since its public debut makes for a smart buy, while Wall Street's most-anticipated reverse split of the year isn't worth the risk.

Nov 4, 2025 by Sean Williams

Billionaire Warren Buffett's $184 Billion Warning to Wall Street Has Hit a Deafening Roar

The Oracle of Omaha has sold more stocks than he's purchased for a staggering 12 consecutive quarters.

Stock Chart Crash Invest Broker Tablet Crypto Plunge Bubble Getty

Nov 3, 2025 by Sean Williams

Quantum Computing Stocks IonQ, Rigetti Computing, and D-Wave Quantum Can Plunge Up to 58%, According to Select Wall Street Analysts

The parabolic moves in Wall Street's quantum computing darlings may not be sustainable.

Nov 3, 2025 by Sean Williams

Billionaire Warren Buffett Sold 41% of Berkshire's Stake in Bank of America and Has Piled Into a Cyclical Company Whose Shares Have Soared 42,400% Since Its IPO

The Oracle of Omaha has jettisoned over 427 million shares of Bank of America since July 2024, but has built up Berkshire's position in a business with well-defined competitive edges for four consecutive quarters.

Nov 2, 2025 by Sean Williams

Social Security's 2026 Raise Is 2.8%, but Retirees Can Likely Kiss Some (or All) of This Increase Goodbye

Not even a first-of-this-century cost-of-living adjustment (COLA) can protect aged beneficiaries from losing buying power next year.

Stock Split US Dollar Coin Certificate Forward Reverse Getty

Nov 2, 2025 by Sean Williams

Wall Street's Long-Awaited Blockbuster Stock Split Announcement of 2025 Has Arrived

One of the stock market's largest and most influential companies unveiled its first forward split in a decade.

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