10 Best Mid-Cap US Stocks to Buy Now

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4. Hinge Health, Inc. (NYSE:HNGE)

Number of Hedge Fund Holders: 48

Market Cap as of October 30: $9.43 Billion

Year-to-Date Gain as of October 30: 156.58%

Hinge Health, Inc. (NYSE:HNGE) is one of the best mid-cap US stocks to buy now, operating at the intersection of digital healthcare, artificial intelligence, and employer-sponsored healthcare benefits. The stock has surged more than 150% year-to-date, reflecting growing investor confidence in its business prospects. Despite the significant rally, Wall Street analysts remain bullish on its long-term growth potential.

On October 26, Stifel reiterated a Buy rating and raised its price target to $130 from $115. The hike came on the company delivering the strongest downloads on its Hinge Health App. Earlier on October 23, BofA also raised its price target to $130 from $110 and kept a buy rating, as KeyBanc raised its price target by $15 to $140. Explore what’s fuelling Hinge Financials.

The positive analyst sentiment comes amid growing adoption of Hinge Health’s digital healthcare solutions. Strong adoption is supported by strong financial performance: revenue rose 53% in the second quarter, and operating income increased 136%. The company also raised its full-year 2026 revenue guidance to 860 million, representing approximately 46% growth. Could Hinge win on digital healthcare expansion?

Another reason Hinge Health stands out is its ability to expand beyond traditional musculoskeletal care. It has already introduced specialized programs covering women’s pelvic health, fall prevention, and migraine care. It has also inked relationships with large employers, health plans, and pharmacy benefit managers.

3. Vicor Corporation (NASDAQ: VICR)

Number of Hedge Fund Holders: 55

Market Cap as of October 30: $9.54 Billion

Year-to-Date Gain as of October 30: 76.81%

Vicor Corporation (NASDAQ:VICR) stands out as one of the best mid-cap US stocks to buy now because of its exposure to high-performance power management, artificial intelligence, and advanced computing systems. The stock has gained more than 70% year-to-date, significantly outperforming the Insider Monkey Billionaire Index, which is up approximately 29% over the same period.

The strong performance reflects growing demand for the company’s power delivery technology as data centers, AI accelerators, and high-performance computing systems require increasingly sophisticated power architectures. Likewise, the company is capitalizing on rising demand for AI-related power solutions. Can the company scale?

Momentum was evident in the third quarter of fiscal 2026, when revenue rose 78.5% to $197.1 million. Net income also more than doubled to $63.3 million. Cash flow from operations also more than doubled to $69.7 million. Backlog rose 7% quarter-over-quarter to $406 million in the third quarter of 2026, up 166% from $153 million a year earlier.

Additionally, Vicor Corporation is benefiting from an expanding licensing business. It has secured its first VPD (vertical power delivery) license with an AI original equipment manufacturer (OEM), which is set to generate royalties. Read how Vicor is licensing its power patents.

Overall, Vicor Corporation offers exposure to the expanding AI infrastructure market through its specialized power management technology. Accelerating revenue growth, improving profitability, a growing backlog, and new licensing opportunities position the company to benefit from rising demand for advanced power solutions.

2. Darling Ingredients Inc. (NYSE:DAR)

Number of Hedge Fund Holders: 63

Market Cap as of October 30: $8.70 Billion

Year-to-Date Gain as of October 30: 71.65%

Darling Ingredients Inc. (NYSE:DAR) is one of the best mid-cap US stocks to buy now, supported by its exposure to renewable fuels, waste recycling, and sustainable agricultural products. A major catalyst behind the stock’s outperformance versus the overall market, with a 71% year-to-date gain, is its renewable fuels business.

Darling Ingredients Inc. owns a 50% stake in Diamond Green Diesel (DGD) that produces renewable diesel and sustainable aviation fuel. The business is benefiting from government policies pushing lower-carbon fuels and rising demand for alternatives to conventional petroleum-based diesel.

Additionally, it is benefiting from growing demand for specialty food and health ingredients through its Rousselot and Gelnex businesses that produce collagen and gelatin used in pharmaceuticals and nutritional supplements.

In the third quarter, revenue rose 14.5% to $1.79 billion, while net income increased to $267 million, or $1.67 a share, compared to $19.4 million, or $0.12 a share, in the third quarter last year. The company also strengthened its balance sheet by reducing net debt by about $420 million during the third quarter. Explore potential margin expansion.

Darling Ingredients Inc. offers exposure to several long-term growth themes, including renewable energy and specialty nutrition. Its improving operating performance, diversified business model, and debt-reduction efforts are key elements of its investment case.

1. Viavi Solutions Inc. (NASDAQ:VIAV)

Number of Hedge Fund Holders: 72

Market Cap as of October 30: $8.19 Billion

Year-to-Date Gain as of October 30: 83.58%

Viavi Solutions Inc. (NASDAQ:VIAV) is one of the best mid-cap US stocks to buy now, supported by its exposure to expanding technology markets, including 5G, fiber-optic networks, and artificial intelligence (AI). The company is benefiting from accelerating AI investments, which are driving demand for high-speed optical connectivity and advanced network infrastructure.

This growing demand has translated into strong financial performance. It delivered strong fiscal fourth-quarter 2027 results, with revenues up 52.5% to $443.1 million as earnings per share climbed 161.5% to $0.34. Full-year revenue was up 40% to $1.52 billion, and EPS more than doubled to $1. Is Viavi a good stock to buy?.

The acquisition of Spirent Communications’ high-speed Ethernet, network security, and channel emulation testing businesses has strengthened Viavi Solutions Inc.’s growth prospects. The business is positioned to benefit from increasing demand for high-speed connectivity as hyperscalers and technology companies expand AI computing infrastructure.

Viavi Solutions Inc. is also benefiting from growing demand for aerospace and defense technologies as its positioning, navigation, and timing (PNT) solutions support military communications. This offers additional growth opportunities as governments increase spending on defense modernization.

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