O’Keeffe Stevens Advisory, an investment advisory firm, released its third-quarter 2026 investor letter. The letter describes a narrow Q3 2026 market rally—mega-cap gains lifted the S&P 500 to 2.3% while most stocks and smaller-cap indexes fell—and notes the portfolio’s Octave purchase, M&T Bank sale, and Corning options repurchase. The letter raises concerns about the scale and financing of AI infrastructure spending, despite strong demand and AI’s potential, and closes by...





