Zacks Research Daily on December 15, 2025, highlights new reports on major stocks like Microsoft Corp., Novartis AG, RTX Corp, and micro-cap stock Air T, Inc. The Zacks microcap research is unique and covers small, under-the-radar companies.

Microsoft Corp. shares have outperformed the industry, driven by strong fundamentals, Azure’s cloud market share, and diversified revenue streams. The company faces competition, regulatory scrutiny, and high capital expenditure. Long-term debt raises concerns.

Novartis AG’s shares outperformed the industry, with a strong drug portfolio offsetting generic competition challenges. The company’s growth is driven by drugs like Kisqali and Pluvicto, with new drug approvals and label expansions expected to support growth.

RTX Corp’s shares have outperformed the industry, driven by defense product orders and commercial aerospace market growth. The company faces risks from U.S. government tariffs and supply chain challenges, despite a strong backlog and solvency position.

Air T, Inc., a microcap company, has shown operational strength but faces challenges like high leverage, thin net profitability, and execution risks. The company’s performance is supported by margin expansion and stable cash flow from FedEx feeder operations.

Zacks Research Daily also features reports on Johnson Controls International, Valero Energy Corp, and Ryanair Holdings plc, highlighting factors like HVAC demand, refining margins, and fleet growth amid rising expenses. Other notable reports include Norwegian Cruise, Federal Realty, and American States Water.

Read more at Nasdaq: Top Research Reports for Microsoft, Novartis & RTX