In this article, we will be taking a look at the 10 Best Mid Cap Stocks to Invest In According to Billionaires.
Venu Krishna, Managing Director and Head of U.S. Equity Strategy at Barclays, talked about the recent market increase and the implications for investors on April 2. He said that while markets negotiate a highly complex geopolitical environment, ongoing macroeconomic and political concerns are testing the rally’s strength.
The anticipated duration and results of the Middle East conflict, which continue to impact investor confidence and risk appetite, are one of the primary sources of uncertainty that have been influencing the mood. Despite these worries, Krishna pointed out that historically, the majority of significant conflicts over the previous fifteen years have not escalated globally, and geopolitical shocks have tended to remain confined. Based on this perspective, he predicted that the S&P 500 index might reach 7,650, which shows both durability and underlying volatility in the larger market environment, if American consumption declines and impedes global development.
He also stressed on the fact that investors should concentrate on scenario-based planning rather than responding to everyday news. He claims that despite keeping a careful eye on vital factors like energy prices, changes in global demand, and the quality of company balance sheets, positioning for relative U.S. market strength is still crucial. According to him, the current rise seems to reflect market hopes of a relatively swift resolution to geopolitical tensions, but in such uncertain times, it is crucial to preserve cash flow flexibility and give priority to financially sound companies.
Recently, trading sessions have shown signs of market turbulence. The Dow Jones Industrial Average entered correction territory on March 27 when U.S. stocks plummeted due to increased oil prices. The Nasdaq Composite fell 2.1%, worsening its decline due to a global tech sell-off, while the S&P 500 fell about 1.7%, marking its longest losing streak since 2022 with five consecutive weeks of losses.
Sentiment is still heavily influenced by changes in the price of oil. Liz Ann Sonders, Chief Investment Strategist at Charles Schwab, said on CNBC’s “Closing Bell” on March 26 that “we’re still very much at the mercy of oil,” which emphasizes how stocks are still susceptible to shocks to the energy market. In the meantime, Jill Carey Hall of BofA Securities predicts that small- and mid-cap companies will beat mega-cap names this year, indicating a possible continuation of a larger bull cycle and an early shift in market leadership.
With that said, let’s take a look at the best mid cap stocks.
Our Methodology
For our methodology, we screened stocks with mid-cap market capitalizations between $2 billion and $10 billion that showed upside potential. From this filtered universe, we selected the top 10 stocks based on the latest news and developments. We then ranked these stocks according to the number of billionaire holdings, as tracked by the Insider Monkey database. In cases where stocks had the same number of billionaire holdings, we used market capitalization as a tiebreaker to determine their final ranking.
Why are we interested in the stocks that hedge funds pile into? The reason is simple: our research has shown that we can outperform the market by imitating the top stock picks of the best hedge funds. Our quarterly newsletter’s strategy selects 14 small-cap and large-cap stocks every quarter and has returned 498.7% since May 2014, beating its benchmark by 303 percentage points (see more details here).
Here is our list of the 10 best mid cap stocks to invest in according to Billionaires.
10. Bitdeer Technologies Group (NASDAQ:BTDR)
Number of Billionaire Holdings: 9
Market cap: $2.61 billion
Bitdeer Technologies Group (NASDAQ:BTDR) is one of the best mid cap stocks on our list.
TheFly reported on April 9 that Cantor Fitzgerald lowered its rating on BTDR from Overweight to Neutral and reduced its price target to $10 from $20. The firm noted that while BTDR is pursuing multiple initiatives, including Bitcoin mining, ASIC production, and AI-related services, concerns are growing among investors about management’s ability to successfully carry out these plans.
Moreover, on April 7, Bitdeer Technologies Group introduced its new SEALMINER A4 series of Bitcoin mining machines, powered by its in-house developed SEAL04 chips. The lineup includes three variants: A4 Pro Air, A4 Pro Hydro, and A4 Ultra Hydro, built to support different operating environments through both air and hydro cooling systems. The machines are designed to deliver strong performance with improved energy efficiency, reaching as low as 9.45 J/TH, while maintaining stable operation for large-scale mining activities.
The systems also focus on reducing downtime and ensuring consistent output. Additionally, hydro-cooling technology supports effective heat control in dense setups while maintaining low noise levels. This launch reflects the company’s ongoing focus on advancing its technology roadmap and strengthening its mining infrastructure capabilities through continued research and development efforts.
Bitdeer Technologies Group is a global technology company specializing in cryptocurrency mining and AI infrastructure. It provides hash rate sharing, cloud mining, and data center solutions, leveraging proprietary hardware and scalable energy-efficient operations.
9. ImmunityBio, Inc. (NASDAQ:IBRX)
Number of Billionaire Holdings: 9
Market cap: $7.72 billion
ImmunityBio, Inc. (NASDAQ:IBRX) is one of the best mid cap stocks.
TheFly reported on April 9 that IBRX reported preliminary first-quarter 2026 net product revenue of about $44.2 million, exceeding the consensus estimate of $43.17 million. Its lead therapy, ANKTIVA, has secured approvals or authorizations across five regulatory regions, covering roughly 34 countries.
The company also confirmed that enrollment for its key BCG-naive CIS study has been completed, with the monitoring committee determining that no further participants are needed. A supplemental biologics license application remains planned for submission in 2026. As of March 31, 2026, ImmunityBio, Inc. held approximately $380.9 million in cash, cash equivalents, and marketable securities. The company continues to focus on expanding its presence in the U.S. while increasing its reach across international markets.
In a separate move, on April 6, IBRX responded to a communication from the FDA’s Office of Prescription Drug Promotion concerning issues identified on March 13 related to a podcast and a television advertisement. The company clarified that the advertisement referenced had never been broadcast and confirmed that the podcast content in question has been removed, with steps taken to eliminate it from external platforms. It also outlined corrective measures, including stricter internal review processes, enhanced compliance protocols, and additional oversight to ensure future promotional materials meet regulatory standards.
ImmunityBio, Inc. is a clinical-stage biotechnology company developing immunotherapies to treat cancer and infectious diseases. Its platform focuses on activating the immune system using novel cell and vaccine-based approaches to improve long-term patient outcomes.
8. CleanSpark, Inc. (NASDAQ:CLSK)
Number of Billionaire Holdings: 10
Market Cap: $2.61 billion
CleanSpark, Inc. (NASDAQ:CLSK) is one of the best mid cap stock on this list.
TheFly reported on April 9 that Cantor Fitzgerald reiterated its Overweight rating on CLSK while cutting its price target from $17 to $14. The firm highlighted growing demand for AI infrastructure as adoption expands across industries, viewing the space as a strong investment opportunity regardless of which technologies lead the market. It also expects a continued imbalance between supply and demand over the coming years, which could support sustained pricing strength.
Additionally, CleanSpark, Inc. published its March 2026 operational update on April 7, reporting total Bitcoin production of 658 for the month, with an average daily output of 21.24. Year-to-date production reached 1,799 Bitcoin. The company achieved an operational hashrate of 50.0 EH/s, while maintaining an average running hashrate of 47.3 EH/s during the period.
Its contracted power capacity stood at 1.8 gigawatts. CLSK’s total Bitcoin holdings increased from 13,363 at the end of February to 13,561 by March 31. Additionally, the average selling price for Bitcoin during the month was reported at $71,396, reflecting continued operational consistency and expansion in mining capacity.
CleanSpark, Inc. is a sustainable bitcoin mining company focused on energy-efficient operations. It develops and operates data centers powered by low-carbon energy, while also offering energy technology solutions to optimize power usage and enhance grid resilience.
7. NIQ Global Intelligence plc (NYSE:NIQ)
Number of Billionaire Holdings: 10
Market Cap: $3.12 billion
NIQ Global Intelligence plc (NYSE:NIQ) is one of the best mid cap stocks to invest in.
TheFly reported on April 9 that NIQ introduced NIQ Growth Pathways, an advanced analytics and insights solution aimed at improving how businesses understand and drive growth. The platform combines both qualitative and quantitative research with the company’s performance data to provide a more complete perspective on consumer behavior. It is designed to help companies better understand consumer attitudes, emotions, and actions while offering a structured approach to identifying opportunities for category and brand expansion.
In a concurrent operational development on April 8, NIQ Global Intelligence plc (NYSE:NIQ) entered into a partnership with Adsquare, a location intelligence company, to expand the availability of its GeoPurchase audience segments across Adsquare’s platform in Europe and North America. This integration allows advertisers to access audience segments built using NIQ’s consumer packaged goods purchase data, supporting more accurate campaign planning and targeting.
The collaboration is designed to improve advertising effectiveness across digital channels, including cross-screen and out-of-home formats. By combining purchase-based insights with location data, the initiative enables marketers to make more informed media decisions and enhance campaign performance while maintaining a focus on privacy-compliant activation.
NIQ Global Intelligence plc (NYSE:NIQ) is a leading consumer intelligence company providing data analytics and insights into global consumer behavior. It helps retailers and manufacturers make informed decisions through advanced measurement, market research, and predictive analytics solutions.
6. Lucid Group, Inc. (NASDAQ:LCID)
Number of Billionaire Holdings: 12
Market Cap: $2.87 billion
Lucid Group, Inc. (NASDAQ:LCID) is one of the best mid cap stocks.
On April 3, LCID reported its quarterly production and delivery figures for the period ending March 31, 2026, producing 5,500 vehicles and delivering 3,093 units. During the quarter, deliveries of the Lucid Gravity were temporarily impacted for 29 days due to a supplier-related issue involving second-row seats, which affected the company’s ability to fully meet customer demand.
The issue has since been resolved, and Lucid Group, Inc. confirmed it is maintaining its previously issued production guidance of 25,000 to 27,000 vehicles for the year. The business also announced plans to discuss its first-quarter results on an upcoming earnings call scheduled for May 5, 2026, alongside continued efforts to improve shareholder engagement through a new question-and-answer platform for investors.
Additionally, TheFly reported on April 2 that LCID unveiled updates to its 2027 Lucid Gravity model range, introducing improvements across comfort, technology, and customization features. The lineup continues to deliver strong EPA-rated driving range while positioning the Gravity as a central part of the company’s near-term growth plans alongside its other vehicles. The refreshed models include the Gravity Touring and Gravity Grand Touring, with starting prices set at $79,900 and $98,900 in the U.S., respectively.
Lucid Group, Inc. is an electric vehicle manufacturer focused on designing and producing luxury EVs with long-range battery technology. The company develops advanced powertrain systems and software to enhance performance, efficiency, and in-car user experience.
5. NovaGold Resources Inc. (NYSEAMERICAN:NG)
Number of Billionaire Holdings: 12
Market Cap: $4.10 billion
NovaGold Resources Inc. (NYSEAMERICAN:NG) is one of the best mid cap stocks.
TheFly reported on April 8 that Morgan Stanley began coverage of NG, assigning an Overweight rating along with a price target of $13.80. The firm highlighted progress at the Donlin Gold project in Alaska, noting its high-grade profile and large scale as a key long-term growth driver. It also pointed to favorable market conditions for gold, supported by broader currency weakness, as a supportive backdrop for the asset’s development and valuation potential.
On April 1, NovaGold Resources Inc. filed its first-quarter report for fiscal 2026 and provided an update on its Donlin Gold development project in Alaska. The company reported cash and term deposits of approximately $392.5 million as of February 28, 2026, alongside net operating cash expenditures of $20.8 million for the quarter, including funding for its share of project development and corporate expenses.
It also recorded a quarterly loss of $15.4 million, or $0.04 per share, reflecting increased spending tied to early feasibility work and ongoing administrative costs. During the period, NG advanced key development activities at Donlin Gold, including engineering partnerships and infrastructure planning, while continuing permitting and regulatory progress. The business also emphasized sustained engagement with local communities and stakeholders as part of its broader long-term project development strategy.
NovaGold Resources Inc. is a precious metals company focused on the exploration and development of gold projects in North America. Its flagship asset is the Donlin Gold project in Alaska, one of the largest undeveloped gold resources globally, developed in partnership with Barrick Gold.
4. Klarna Group plc (NYSE:KLAR)
Number of Billionaire Holdings: 12
Market Cap: $4.95 billion
Klarna Group plc (NYSE:KLAR) is one of the best mid cap stocks to invest in.
TheFly reported on April 9 that KLAR and the Douglas Group, a European premium beauty retailer, expanded their existing partnership into Italy and Spain. The agreement extends Klarna’s checkout services to customers in both countries, allowing shoppers to use flexible payment options at the point of purchase. This includes the ability to divide payments into interest-free installments, improving accessibility for consumers in Southern Europe. The expansion builds on prior collaboration across other European markets and further increases Klarna’s presence in the region’s retail payment ecosystem.
Earlier on April 1, Klarna Group plc (NYSE:KLAR) completed a new capital efficiency arrangement structured as a Significant Risk Transfer transaction involving €1.7 billion in euro-denominated loans. The deal was arranged with a consortium led by Värde Partners under a three-year agreement. This marks the company’s sixth transaction of this type and is intended to improve capital deployment efficiency across its global operations. By transferring a portion of credit risk, KLAR frees up balance sheet capacity to support continued business expansion and lending activity, strengthening its ability to scale while maintaining more effective use of capital resources.
Klarna Group plc (NYSE:KLAR) is a global fintech company offering payment and shopping solutions. It specializes in “buy now, pay later” services, enabling consumers to split payments or defer purchases while helping merchants boost sales through flexible checkout options.
3. Ondas Inc. (NASDAQ:ONDS)
Number of Billionaire Holdings: 13
Market Cap: $4.40 billion
Ondas Inc. (NASDAQ:ONDS) is also one of the best mid cap stocks on this list.
TheFly reported on April 7 that ONDS announced that its subsidiary Sentrycs secured multiple contracts worth millions of dollars from federal, state, and local public safety agencies to support airspace security during the 2026 FIFA World Cup.
The deployment will focus on protecting stadiums, fan zones, and related event areas across matches hosted in 16 cities throughout the United States, Canada, and Mexico. Sentrycs’ counter-unmanned aircraft systems will be used at most venues to detect, track, and manage unauthorized drone activity. The technology is designed for non-disruptive operation in crowded environments, supporting large-scale security needs while maintaining regulatory compliance and operational safety throughout the tournament.
Separately, a day earlier on April 6, Ondas Inc. reported that its subsidiary 4M Defense secured a competitive contract for a large-scale demining initiative along a strategic border area. The program is expected to generate more than $50 million in near-term and follow-on orders, adding to a previously announced $30 million demining project. The initiative strengthens the company’s involvement in next-generation border infrastructure and security solutions. ONDS also noted additional long-term opportunities that could expand into hundreds of millions of dollars in future system deployments, highlighting potential growth in broader border protection and infrastructure modernization programs over time.
Ondas Inc. is a technology company focused on providing autonomous drone and private wireless solutions. It develops industrial drone platforms and secure communication networks used in sectors such as defense, public safety, transportation, and critical infrastructure.
2. Avantor, Inc. (NYSE:AVTR)
Number of Billionaire Holdings: 13
Market Cap: $5.35 billion
Avantor, Inc. (NYSE:AVTR) is among the best mid cap stocks.
TheFly reported on April 6 that Evercore ISI maintained its In Line rating on AVTR while reducing its price target from $10 to $8.50. The adjustment was made as part of the firm’s broader preview of the medical technology and life sciences tools sector ahead of first-quarter results.
Earlier on April 1, Avantor, Inc. announced that its Executive Vice President and Chief Financial Officer, R. Brent Jones, will be departing the company on or before June 24, 2026. In response, the company has begun the process of identifying a permanent successor to fill the CFO role. To maintain continuity during the transition period, Steve Eck, Senior Vice President and Chief Accounting Officer, will step in as interim CFO once Jones leaves.
Eck has been with Avantor since 2019, overseeing financial reporting and internal control functions, and brings extensive prior experience from senior finance positions at several organizations, including CSS Industries, Fidelity National Information Systems, General Electric, and Deloitte & Touche. The company emphasized its focus on ensuring an orderly leadership transition while maintaining stability in its financial operations and reporting structure until a new CFO is appointed.
Avantor, Inc. is a global provider of mission-critical products and services to the life sciences, advanced technologies, and applied materials industries. It supplies lab materials, chemicals, and solutions that support research, development, and biopharmaceutical manufacturing.
1. StubHub Holdings, Inc. (NYSE:STUB)
Number of Billionaire Holdings: 17
Market Cap: $2.20 billion
StubHub Holdings, Inc. (NYSE:STUB) is among the best mid-cap stocks to invest in.
TheFly reported on April 9 that Guggenheim analyst Curry Baker noted that STUB reportedly agreed to a $10 million settlement with the Federal Trade Commission over allegations related to failure to clearly disclose full ticket prices, including mandatory fees. The firm suggested this development could have positive implications for Live Nation’s ongoing FTC case. It highlighted that Live Nation has taken steps to curb secondary ticketing practices and has supported consumer-focused pricing reforms such as all-in pricing and resale limits. Guggenheim also emphasized that Live Nation is increasingly viewed as more compliant relative to peers and may be in a stronger position to resolve its regulatory matters within the year.
Separately, earlier on March 26, StubHub Holdings, Inc. and Vivenu announced a partnership enabling event organizers on Vivenu’s platform to directly access StubHub’s global audience of over 125 million users across more than 200 countries. The integration is active immediately, requires no exclusivity, and is available at no cost.
It connects Vivenu’s ticketing system with STUB’s marketplace, allowing organizers to list tickets on StubHub directly from their dashboard. Ticket sales made through StubHub are automatically synchronized across channels, ensuring inventory updates in real time. Under the arrangement, STUB manages payment processing, customer service, and ticket delivery for transactions completed through its platform.
StubHub Holdings is a digital marketplace for buying and selling tickets to live events such as concerts, sports, and theater. It connects fans with resellers, providing pricing transparency and access to tickets for in-demand events globally.
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