Core Insights - Tortoise Energy Infrastructure Corporation (TYG) is undergoing significant changes due to successive mergers, including last year's merger with Tortoise Midstream Energy Fund, Inc. (NTG) and an upcoming merger with Tortoise Sustainable [1] Group 1: Company Changes - The nature of TYG is evolving from a midstream MLP closed-end fund to a more diversified investment approach focused on building a resilient, income-generating portfolio [1] - The company is adopting a long-only investment strategy that blends dividend-paying equities, REITs, and selective growth opportunities [1] Group 2: Investment Philosophy - The investment approach emphasizes disciplined, fundamentals-driven investing, prioritizing capital preservation while compounding returns over time [1]