Mairs & Power, an investment advisor, released the third-quarter 2025 investor letter for the “Mairs & Power Growth Fund.” A copy of the letter can be downloaded here. In 2025, the market dominance continues to concentrate on a small group of mega-cap stocks associated with artificial intelligence (AI). The fund gained 7.99% in the third quarter, broadly consistent with the S&P 500 Total Return (TR) Index’s 8.12% return and ahead of its peer group, the Morningstar Large Blend index’s 6.93% gain. YTD, the fu ...