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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.

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Sean Williams

Recent Articles by Sean Williams

Social Security Changes Forever Today, Sept. 30, Courtesy of President Donald Trump

Tesla, Rivian, and Lucid Will Have Their Fortunes Changed Forever Today, Sept. 30, Courtesy of President Donald Trump

Nvidia Received a Rare Price Target Cut From a Wall Street Analyst -- but the Reasoning Behind the Cut Misses the Biggest Threat Facing This Artificial Intelligence (AI) Darling

Warren Buffett Is Leaving Successor Greg Abel With a Highly Concentrated Portfolio That Has More Than 50% of Berkshire's $307 Billion Invested in 3 Stocks

Here's Precisely How Much Social Security's 2026 Cost-of-Living Adjustment (COLA) Is Projected to Raise Benefits

Prediction: Wall Street's Most Valuable Public Company by 2030 Will Be This Dual-Industry Leader (No, Not Nvidia)

Social Security Benefits Cuts Are Now an Estimated 7 Years Away, and President Donald Trump's "Big, Beautiful Bill" Is Partly to Blame

The S&P 500 Is About to Achieve a Feat Accomplished 31 Times Since 1950 That Has a Greater Than 93% Accuracy of Predicting Future Stock Moves

Billionaire David Tepper Dumped 93% of Appaloosa's Stake in Oracle and Piled Into What Might Be Wall Street's Most Important Artificial Intelligence (AI) Stock

Warren Buffett Is Retiring in 3 Months, and His $177 Billion Warning to Wall Street Rings Louder Than Ever

The No. 1 Holding on Robinhood Is Expected to Be at the Center of a $5 Trillion Addressable Opportunity by 2050 (Hint: It's not Nvidia)

Costco's Big Day Has Arrived! Expect Management to Address a Controversial New Perk That Has Some of Its 79.6 Million Paying Members in an Uproar.

Billionaire Stanley Druckenmiller Jettisoned His Fund's Entire Stake in Palantir and Loaded Up on His Favorite Artificial Intelligence (AI) Stock for a 4th Straight Quarter

The Buffett Indicator and Shiller P/E Ratio Are in Rarified Territory -- Are Things About to Get Ugly for Stocks?

3 Magnificent Stocks I'm Close to Buying, Even Amid a Historically Pricey Stock Market

Prediction: Warren Buffett Is Retiring in 100 Days, and 3 Big Changes Are Coming to Berkshire Hathaway When He Does

Palantir and Meta Platforms Just Signaled a $17 Billion Warning for Wall Street -- Is It Time to Worry?

Prediction: Alphabet Just Became the 4th Member of the $3 Trillion Club -- but the First $5 Trillion Stock Will Be an Outlier (No, Not Palantir or Oracle!)

70 Million Social Security Beneficiaries Are Set for a "Trump Bump" in 2026 (but It's Not Expected to Amount to Much)

The Stock Market Is on the Verge of Doing Something Observed Only 2 Previous Times in 154 Years

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