Mario Ma
58 Articles
With over five years of experience in finance, he specializes in financial analysis, investment strategy, and market research. His expertise spans macroeconomic analysis, industry research, and equity analysis, providing clients with actionable insights and investment advice.
He holds a Master of Science in Accountancy from Hong Kong Polytechnic University and a Bachelor of Business Administration in Accounting from Hong Kong Baptist University. He passed CFA Level III and FRM Level I.
Written by Mario Ma
Reviewed by Mario Ma
Caterpillar’s 100th Birthday: How AI Data Centers Ignite the Next Century of Growth
TradingKey - Caterpillar, the global leader in construction equipment, dominates with a 16.8% market share, far surpassing competitors, thanks to its scale-driven cost advantages, service network spanning 190 countries, and high-resale-value brand.
Mon, Sep 8
Dollar Tree Q2 2025: Strong Growth Post-Family Dollar Divestiture, Why Did the Stock Plunge?
TradingKey - Dollar Tree (DLTR) released its fiscal 2025 second-quarter earnings report on September 3, 2025. This quarter was a milestone for the company, as it marked the first time Dollar Tree operated as a more focused single entity following the divestiture of its Family Dollar business on July
Thu, Sep 4
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Who Smokes Whom? Altria and Philip Morris International for Tobacco Supremacy
TradingKey - As a U.S. tobacco giant, Altria dominates the cigarette market through subsidiaries like Philip Morris USA but faces severe challenges from declining sales and competition from illicit e-cigarettes.
Mon, Sep 1
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Decoding Wall Street’s Q2 2025 Playbook
TradingKey - In Q2 2025, the S&P 500 achieved an 11% increase, reaching an all-time high, signaling a robust bull market. However, this rally was highly concentrated, driven primarily by a small group of technology stocks, while other sectors experienced limited growth or declines.
Wed, Aug 27
Walmart Stock Tumbles as EPS Miss Triggers Algo-Trading Frenzy—Where Lies Its Core Business Resilience?
TradingKey - Walmart's stock price has shown an overall fluctuating upward trend since the release of its first-quarter earnings report, benefiting from investors' favoritism towards Walmart as a defensive stock, as well as expectations for its stable growth in e-commerce and grocery businesses.
Fri, Aug 22
Home Depot Soars 4% Against the Odds! Why Did an Earnings “Miss” Become a Stock Catalyst?
TradingKey - On August 19, 2025, Home Depot released its fiscal year 2025 second quarter earnings report, achieving sales of $45.3 billion during the reporting period, a year-over-year increase of 4.9%, with a comparable sales growth of 1.0%, including a 1.4% comparable sales growth in the U.S. mark
Wed, Aug 20
BHP’s 2025 Playbook: Turning Profit Dips into Strategic Wins
TradingKey - On August 18, 2025, BHP Group announced its full-year results for the 2025 fiscal year. Despite an 8% year-on-year revenue decline to $51.3 billion and a 26% significant drop in underlying attributable profit, which reflects core business performance, to $10.2 billion
Tue, Aug 19
Fiserv's Stablecoin Strategy: FIUSD Opens New Investment Opportunities
TradingKey - Fiserv, leveraging its global network spanning 10,000 financial institutions and 6 million merchants, combined with the FIUSD stablecoin and digital asset platform, potentially launching by the end of 2025, demonstrates its potential to transform from a traditional payment giant into a
Mon, Aug 18
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The Market Game of the Quantitative King: How Renaissance Technologies Locks in Excess Returns Amid the 2025 Turmoil
TradingKey - Founded by mathematician James Simons, Renaissance Technologies LLC is a global leader in quantitative investing, renowned for its data-driven, innovative approach. The firm eschews traditional fundamental analysis, relying instead on advanced mathematical models
Thu, Aug 14
Size Matters? Royal Caribbean Cruises Don’t Think So
TradingKey - Royal Caribbean Group (RCL), as the world’s second-largest cruise operator, demonstrates industry-leading recovery and competitive strength in the post-pandemic era through robust revenue growth (18.6% increase in 2024, with net income surging 70.6%), exceptional operational efficiency
Mon, Aug 11
Eli Lilly’s Q2 2025 Triumph: Soaring Revenue, Plunging Stock – What’s Behind the Paradox?
TradingKey - Eli Lilly released its Q2 2025 financial results, demonstrating impressive financial performance. However, despite the stellar results, its stock price plummeted by over 14%, closing at approximately $640, down more than 30% from its yearly high.
Fri, Aug 8
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From Ozempic to Wegovy: Growth and Risks Behind Novo Nordisk’s Q2 Performance
TradingKey - Novo Nordisk achieved revenue of $11.67 billion in Q2 of the 2025 fiscal year, a 19% increase year-over-year, but it fell short of market expectations. Growth was primarily driven by strong performance in obesity care and rare diseases.
Thu, Aug 7
Caterpillar Q2 Earnings Analysis: Revenue Beats Expectations, Diversified Strategy Mitigates Tariff Challenges
Caterpillar’s 2025 Q2 revenue slightly exceeded market expectations at $16.57 billion, but declined 0.8% year-over-year. Weak demand in the Construction and Resources segments partially offset growth in other segments.
Wed, Aug 6
Berkshire Hathaway FY2025 Second Quarter Earnings Comments
TradingKey - Revenue: In Q2 2025, Berkshire's total revenue was $92.515 billion, slightly down from $93.653 billion in the same period last year, falling short of market expectations.
Tue, Aug 5
Kraft Heinz: Buffett, Is It Time to Sell?
TradingKey - Kraft Heinz (KHC), the world’s fifth-largest food and beverage company, boasts a strong brand portfolio and diversified revenue streams, with North America accounting for nearly 75% of its income.
Mon, Aug 4
American Tower 2025 Second Quarter Earnings Comments
Revenue: American Tower reported total revenue of $2.63 billion in Q2 2025, surpassing market expectations of $2.59 billion but down 9.3% from $2.9 billion in Q2 2024.
Wed, Jul 30
Starbucks FY2025 Third Quarter Earnings Comments
Starbucks reported quarterly revenue of $9.5 billion, surpassing market expectations of $9.45 billion, with a year-over-year increase of 4.28%. This growth was primarily driven by new store openings, with a global net addition of 308 stores, bringing the total to 41,097. North America saw 3% growth,
Wed, Jul 30
From Treehouses to Castles: How Airbnb Is Disrupting the Traditional Travel Market
TradingKey - Airbnb, as the global leader in the short-term rental market, leverages diverse listings, Remote Work Hubs, and Airbnb Experiences to effectively capture post-pandemic demand for flexible accommodations and personalized travel, achieving a 44% market share in 2024, far ahead of...
Mon, Jul 28
Honeywell 2025 Second Quarter Earnings Comments
TradingKey - Honeywell reported Q2 2025 revenue of $10.4 billion, surpassing market expectations of $10.02 billion, with a year-over-year increase of 8.56%, including 5% organic growth, indicating robust core business expansion.Honeywell raised its 2025 full-year revenue guidance from $39.6-$40.5...
Fri, Jul 25
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NextEra Energy 2025 Second Quarter Earnings Comments
TradingKey - NextEra Energy is optimistic about its 2025 full-year performance, expecting adjusted EPS to reach the upper end of the $3.45–$3.70 guidance range. This positive outlook is driven by strong performance in its core businesses: FPL, with nearly 8% regulated capital growth, and NEER...
Thu, Jul 24
