Top 3 Growth Stocks To Watch In October 2026

AI data centers are starting to demand dedicated power, and Venture Global’s plan for up to 10 GW of gas-fired generation shows how quickly capital can move toward clear growth stories. When money chases businesses with visible demand, the strongest operators can gain attention fast. This piece highlights three companies from a high-growth, high-conviction screen where both analysts and management see meaningful runway ahead.

The stocks highlighted below are just a starting sample, and the full high growth, high conviction screen surfaced 51 more businesses with equally compelling narratives that do not fit into a single article.

To get the full picture, head straight into the High Growth High Conviction screener to identify, filter, and analyze the highest conviction ideas that match your own criteria.

ERock (EROC)

Overview: ERock provides modular natural gas based power systems and long-term service contracts that keep data centers and industrial sites supplied with reliable on-site electricity.

Operations: ERock generates about $162 million in revenue from electric equipment solutions entirely in the United States, focused on distributed power generation systems.

Market Cap: US$2.7 billion

ERock fits the High Growth High Conviction theme because its modular power blocks and long-term services are targeted to AI data centers that need fast, dependable on-site supply rather than waiting years for grid upgrades.

"AI driven load growth and grid constraints are associated with increasing demand for rapid, on site generation, and ERock's 1.7b contracted backlog and production capacity sold out through 2027 and into 2028 provide contracted work that may support future revenue and EBITDA as projects convert."

What happens if a single assumption about how quickly those projects move from contract to cash meaningfully shifts the timing of that ramp?

If that timing risk matters to you, read the full narrative for ERock to see how ERock’s contracted backlog, capital needs, and competitive position could be decoupling.

Oracle (ORCL)

Overview: Oracle is a global software group that sells cloud applications, databases, and infrastructure services that help large organisations run their operations and data.

Operations: Oracle generates about US$62.8b from cloud and software, alongside US$5.8b from services and US$3.2b from hardware.

Market Cap: US$395.8b

Oracle taps directly into the High Growth High Conviction theme through its Oracle Cloud platform, where Fusion Cloud apps, NetSuite, and OCI are the focus of management’s push toward higher value recurring cloud contracts.

"Oracle’s Gen2 AI infrastructure was validated when OpenAI began leveraging OCI Superclusters, capable of scaling up to 32,768 Nvidia GPUs per cluster. This demonstrated that OCI can compete head-to-head with the largest hyperscalers on both performance and cost-effectiveness."

The real swing factor is how one financial pressure on this AI buildout ultimately feeds through to growth, pricing power, and margins.

That pressure on Oracle’s AI buildout is exactly what the full narrative for Oracle unpacks, showing where accelerating demand, contracts and risks could realistically leave long term shareholders.

Nu Holdings (NU)

Overview: Nu Holdings runs a digital-first consumer bank across Latin America, with app-based accounts, cards, payments, lending, crypto, and shopping.

Operations: Nu Holdings generates about US$8.4b from banking services, primarily in Brazil, alongside smaller contributions from Mexico and other countries.

Market Cap: US$72.1b

Nu Holdings fits the High Growth High Conviction theme because its app-led banking model is attracting millions of customers from traditional banks in Brazil, while adding lending, shopping, and crypto services that management and analysts expect to scale further across Latin America.

"Nu's main competitive advantage wasn't just the low cost structure or its marketing, but the product itself. Nu consistently ranks as Brazil's most loved financial brand."

The real test is what happens to that high-margin digital banking story if one key pressure on its fast-growing loan book shifts direction.

That pressure point on Nu Holdings’ loan book is exactly what the full narrative for Nu Holdings unpacks, revealing how customer love, risk controls, and earnings momentum could still accelerate.

Seeking Fresh Alternatives Before They Fly

Fresh ideas often appear before they are widely noticed. Once momentum builds, prices can move quickly while information quality declines. Review these curated sets early, before they become crowded.

• Look for cash flow strength and consistency across a curated list of solid balance sheet and fundamentals (25 results) that may keep operating steadily while weaker peers are still working on their finances.
• Explore potential income-focused candidates using a targeted 8 dividend fortresses designed to highlight payouts that may be more resilient when other yields are declining.
• Review early-stage AI-related opportunities in a focused 38 AI small caps where smaller players may still be less widely followed but are working to build business traction.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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