Best AI Stocks to Buy: Under $10 and Billionaire Favorites

If you’ve been watching the AI stock market this year, you’ve probably noticed a pattern: the biggest names are soaring, but the real excitement might be hiding in the corners where prices are low and billionaires are quietly building positions. The global AI market is forecast to hit $500 billion by 2026, and this guide cuts through the noise to show you the best AI stocks to buy now, including overlooked picks under $10 and the ones that America’s wealthiest investors are betting on.

Global AI market size forecast 2026: $500 billion · Number of AI stocks tracked by Morningstar Index: 50 · Year-to-date performance of Morningstar AI Index: +12%

Six key data points, one pattern: the leaders show strong revenue growth but the most explosive returns in the sector have come from smaller names.

Which is the best AI stock to buy right now?

Top contenders: Nvidia, Microsoft, Alphabet

• Nvidia commands the dominant share in AI chips, with NerdWallet calling it “the AI chip leader.”
• Microsoft has integrated AI across its cloud and productivity suite, earning a top rating from Zacks.
• Alphabet’s Google Brain and DeepMind continue to push AI research, making it a core holding in many AI-focused portfolios.

Comparing valuation and growth metrics

Five stocks, one clear trade-off: the highest growth names carry the richest multiples.

The implication: if you want safety, Microsoft offers the most diversified AI exposure. If you want pure-play growth, Nvidia is the consensus pick — just don’t expect cheap entry.

What AI stock is ready to explode?

Small-cap AI stocks with high volatility

• SoundHound AI has been flagged by Yahoo Finance as an under-$10 stock with “long-term upside potential.”
• BigBear.ai, listed by Pineify, is another penny stock that has drawn attention.
• Aurora Innovation is also mentioned by Yahoo Finance as a self-driving AI play under $10.

Identifying breakout candidates

Breakout candidates share three traits: a catalyst (new product or partnership), institutional accumulation, and a reasonable burn rate. Zacks highlights Hewlett Packard Enterprise and Dell as larger-cap names that made the Zacks AI stock buy list for 2026. But for the explosive small-cap territory, Banyan Hill Publishing (investment newsletter) keeps a running list of its 10 favorite AI penny stocks, noting that prices below $5 can quickly double on news.

The pattern: volatility cuts both ways. The same stock that can double in a month can halve in a week.

Which AI stock will boom in 2026?

Long-term growth projections for AI stocks

By 2026, the global AI market is expected to reach $500 billion, according to NerdWallet. That’s a compound annual growth rate of roughly 37% from 2023. Elevate Wealth (wealth advisory) named NVIDIA as its best overall AI stock and Taiwan Semiconductor as its best foundry stock for the 2026 horizon.

AI stocks with strong R&D pipelines

• ASML, the lithography equipment maker, is essential for manufacturing advanced AI chips. Elevate Wealth includes it among top AI stocks to watch.
• Micron Technology delivered a 703.29% return over one year, per NerdWallet, making it the best-performing AI stock in its analysis.
• Nebius (NBIS) and other data-center infrastructure plays are gaining traction as AI workloads expand.

Why this matters: investors targeting 2026 need to look beyond the familiar names. The real growth might come from the infrastructure layer — companies that enable AI rather than just the models themselves.

What are the best AI stocks to buy now under $10?

List of AI stocks trading under $10

• SoundHound AI (SOUN) — Yahoo Finance calls it a “long-term play on voice AI.”
• C3.ai (AI) — trading near $9, listed on PortfolioPilot’s screener for best AI stocks under $10.
• BigBear.ai (BBAI) — Pineify groups it under AI penny stocks, though it occasionally trades above $1.
• Aurora Innovation (AUR) — Yahoo Finance includes it in its under-$10 AI stock picks.
• Applied Optoelectronics (AAOI) — StocksToTrade highlights it as an AI connectivity play.

Risks associated with low-priced stocks

Banyan Hill Publishing notes that AI penny stocks trade below $5 by definition, but their prices can “range higher as momentum increases.” That same momentum can reverse. StocksToTrade warns of low liquidity and high short interest in many names under $5.

Due diligence checklist for cheap AI stocks

• Check cash burn rate — many AI penny stocks are pre-revenue or barely profitable.
• Look for institutional ownership — Zacks considers this a quality signal.
• Verify the AI exposure — some stocks claim “AI” but have limited actual business in the sector.

The trade-off: low entry price versus high risk. For every SoundHound that 10x’s, many more fade away.

What AI stocks are billionaires buying?

Recent 13F filings from top billionaires

Berkshire Hathaway’s 13F filing revealed a new stake in an AI-related company, though Warren Buffett has historically been cautious on tech. NerdWallet notes that billionaire investors often hold Nvidia, Amazon, and Meta as core AI positions.

Stocks favored by Warren Buffett, Ray Dalio, and others

• Nvidia appears in the 13F filings of multiple hedge fund billionaires.
• Amazon and Meta are common across billionaire portfolios tracked by NerdWallet.
• Ray Dalio’s Bridgewater Associates added to its Microsoft position in the latest filing.

“The AI sector is a long-term growth story, but valuation multiples need to be sustainable.”

— Morningstar equity analyst, quoted in NerdWallet

“Buffet’s 13F shows he’s dipping into AI indirectly — not buying the hype, but buying the infrastructure.”

— Yahoo Finance reporter, citing a portfolio manager’s interview

Why this matters: billionaire 13F filings are public, but they are also backward-looking. By the time you see the filing, the stock may have already rallied. The pattern: follow the trend, not the exact filing date.

Confirmed facts vs. What’s unclear

Frequently asked questions

For the investor targeting 2026, the choice is clear: buy the infrastructure leaders (Nvidia, Micron, ASML) for steady growth, or swing for the fences with under-$10 names like SoundHound and BigBear.ai — but only with money you can afford to lose.