Warren Buffett's investment in American Express (NYSE: AXP) has grown 40-fold, a success often attributed to brand strength and customer loyalty. However, the article highlights a quieter force: American Express's systematic increase of per-share earnings through consistent share buybacks. This strategy allowed Berkshire Hathaway to more than double its ownership of American Express's profits without deploying additional capital, even as its investment cost decreased.

Diet Coke is partnering with 20th Century Studios for the highly anticipated sequel, The Devil Wears Prada 2, which will be released on May 1st. This collaboration will feature fan-focused experiences, special edition packaging, and a bespoke ad campaign, aiming to engage audiences globally and extend the film's cultural influence. The promotion includes chances to win a trip to New York City and other prizes, reflecting Diet Coke's long-standing connection to fashion and culture.

Blackstone (BX) stock is forecast to hit $140.36, representing a 9.55% upside from its current price, with a "BUY" recommendation from 24/7 Wall St. despite a volatile year. The alternative asset management giant manages $1.27 trillion in assets under management (AUM) and has shown strong growth in Perpetual Capital, Credit and Insurance, and Infrastructure AUM, indicating a solid fundamental case for recovery. While Q4 2025 earnings showed mixed results with a GAAP EPS miss, robust Distributable EPS and significant inflows suggest underlying business strength, setting the stage for crucial April 23 earnings.

Popular Inc. (BPOP) stock hit a new 52-week high of $149.57, reflecting a 75.52% return over the past year and a 25.5% return in the last six months. This surge highlights investor confidence despite an InvestingPro analysis suggesting the stock may be overvalued relative to its Fair Value. The company recently declared monthly cash dividends on its preferred stock, received an upgrade to "Buy" from UBS with a raised price target of $160, and announced executive leadership changes.

Avnet Inc.'s stock reached an all-time high of $74.45, nearing its 52-week high, reflecting a 60.56% total return over the past year and 54.45% year-to-date. This surge follows strong Q2 fiscal year 2026 results, with EPS and revenue surpassing forecasts, and a subsequent upgrade to "buy" by Truist Securities. Despite a P/E ratio of 29.98, InvestingPro analysis suggests it might be overvalued relative to its Fair Value.

Steel Dynamics Inc. (STLD) stock has reached an all-time high of $208.68, trading just below its 52-week high, with a market capitalization of $30 billion and a 72% increase over the past year. This achievement reflects strong investor confidence despite recent Q1 2026 earnings guidance falling short of analyst expectations, attributing the shortfall to reduced profitability in the Steel Fabrication segment and potential lower steel mill shipments due to winter weather. Analysts from BofA Securities and Jefferies reiterated a Buy rating, while Morgan Stanley maintained an Equalweight rating.

Globe Life Inc.'s stock has reached an all-time high of $152.79, marking a 30.21% increase over the past year due to strong performance and investor confidence. Despite missing Q4 2025 earnings and revenue estimates, the company raised its quarterly dividend and expanded its board of directors. Analysts view the stock as undervalued, with Texas Capital Securities initiating coverage with a buy rating and a $170 price target.

Alpha and Omega Semiconductor (AOSL) stock reached a new 52-week high of $35.77, currently trading just below this peak, reflecting a 114.09% 1-year change. Despite this strong performance and market optimism, InvestingPro analysis suggests the stock might be overvalued relative to its Fair Value. Recent company news includes a Q2 fiscal year 2026 earnings miss, the start of production at its new India facility for IPM5 intelligent power modules, and the launch of new MOSFETs for AI server power applications, highlighting ongoing innovation and expansion efforts.

BlackBerry (BB) stock reached a new 52-week high of $5.33, reflecting positive investor sentiment with a 53% 1-year return and 28% year-to-date gain. This performance follows strong fiscal Q4 2026 results, surpassing analyst expectations with adjusted EPS of $0.06 and revenue of $156 million. The company's QNX division and Secure Communications both saw significant year-over-year revenue growth.

Delta Air Lines is reducing some flights this summer due to operational factors, which analysts attribute to surging fuel prices. The airline has made "select adjustments across a small number of routes" and will directly contact impacted customers. Other airlines like United are also pruning flights due to high oil prices, and the CEO of United Airlines stated they would focus on less popular flying times such as overnights, Tuesdays, Wednesdays, and Saturdays.