Parker-Hannifin delivered a compelling first quarter for fiscal year 2025, anchored by a transformed portfolio and continued margin expansion despite modest organic growth. Reported record Q1 revenue of $4.9039 billion and adjusted segment operating margins up 80 basis points to 25.7%, driven by robust Aerospace Systems performance and ongoing Win Strategy execution. Aerospace led the charge with $1.4 billion in sales, a roughly 18% year-over-year increase, and a 27.9% adjusted segment margin (a 190 basis point year-over-year improvement), supported by Meggitt integration and a stronger aftermarket mix (about 50% of Aerospace sales). North American Diversified Industrial also posted a record margin, 25.3%, even as organic growth slowed in a soft domestic environment. International results exceeded in-margin expectations, with a 24.1% adjusted margin. Cash generation was strong, with CFOA of $744 million (15.2% of sales) and free cash flow of $648.7 million (13.2% of sales). The company reduced net debt and improved leverage to 1.9x net debt/adjusted EBITDA. Management raised full-year guidance, reflecting a 1.5% divestiture headwind and a renewed focus on higher-margin growth, particularly in Aerospace. The Q2 and full-year guidance imply continued margin resilience and cash deployment, supported by a disciplined capital allocation framework. Investors should monitor divestiture timing, aerospace aftermarket dynamics, and macro cycles in In-plant industrials and off-highway while watching for megaprojects and international end-market activity, especially in Asia-Pacific.