Market Overview - U.S. stock markets have experienced a significant bull run since the start of 2023, with major indexes like the Dow, S&P 500, and Nasdaq Composite nearing all-time highs [1] - The S&P 500 and Nasdaq Composite have achieved multiple all-time highs in 2025, while the S&P 400 mid-cap index is up 4.9% year to date, just 4.6% away from its 52-week high [2][9] Mid-Cap Stocks - Investment in mid-cap stocks is recognized as a strong portfolio diversification strategy, combining attributes of both small and large-cap stocks [3] - Mid-cap stocks are less vulnerable to losses during economic downturns due to lower international exposure, and they can outperform small caps in a thriving economy due to established management and market presence [4] Recommended Mid-Cap Stocks - Five mid-cap stocks with favorable Zacks Rank for the remainder of 2025 are Dillard's Inc. (DDS), Sterling Infrastructure Inc. (STRL), StoneX Group Inc. (SNEX), Armstrong World Industries Inc. (AWI), and Watts Water Technologies Inc. (WTS), all rated Zacks Rank 1 (Strong Buy) [5][9] Company Insights Dillard's Inc. (DDS) - Dillard's is enhancing growth through strategic initiatives in both brick-and-mortar and e-commerce, focusing on customer acquisition and retention [8] - The company has a strong financial position with solid liquidity and minimal rent obligations, alongside shareholder-friendly practices like dividends and buybacks [10] - Expected revenue and earnings growth rates for DDS are -0.4% and -15.8%, respectively, for the current year, with a 1.8% improvement in the earnings consensus estimate over the last 30 days [11] Sterling Infrastructure Inc. (STRL) - Sterling Infrastructure provides e-infrastructure, transportation, and building solutions, operating through three segments: E-Infrastructure Solutions, Transportation Solutions, and Building Solutions [12][13][14] - The expected revenue and earnings growth rates for STRL are 6.5% and 56.9%, respectively, for the current year, with a 5.3% improvement in the earnings consensus estimate over the last seven days [15] StoneX Group Inc. (SNEX) - StoneX Group operates a global financial services network, offering execution, post-trade settlement, clearing, and custody services through various segments [16] - The expected revenue and earnings growth rates for SNEX are 4.9% and 21.7%, respectively, for the next year, with a 21.7% improvement in the earnings consensus estimate over the last 60 days [17] Armstrong World Industries Inc. (AWI) - Armstrong World Industries is a leading producer of ceiling systems for construction and renovation, operating in three segments: Mineral Fiber, Architectural Specialties, and Unallocated Corporate [18][19][20] - The expected revenue and earnings growth rates for AWI are 12.2% and 15.1%, respectively, for the current year, with a 0.7% improvement in the earnings consensus estimate over the last 30 days [21] Watts Water Technologies Inc. (WTS) - Watts Water Technologies designs and manufactures water safety and flow control products, reporting under three geographic segments: The Americas, Europe, and APMEA [22] - The expected revenue and earnings growth rates for WTS are 3.9% and 11.3%, respectively, for the current year, with a 0.8% improvement in the earnings consensus estimate over the last seven days [24]