12 min read· Published September 2, 2025· Updated May 14, 2026

AI Stocks: How to Invest Across the AI Value Chain

The AI capex cycle is the largest infrastructure buildout since the internet. Earnings calls now reference AI more every quarter, GPUs are still backordered for some accelerators, and the productivity narrative has moved from slide-deck speculation to revenue. The question is no longer whether AI matters — it is which companies actually capture the value.

By Benjamin Sultan, Florent Poux, Thibaud Sultan
Clean, minimalist photo-style scene of a modern workspace: a sleek laptop on a light wood desk displays a simplified green-and-white candlestick chart trending upward, with no labels or numbers.

The AI capex cycle is the largest infrastructure buildout since the internet. Earnings calls now reference AI more every quarter, GPUs are still backordered for some accelerators, and the productivity narrative has moved from slide-deck speculation to revenue. The question is no longer whether AI matters — it is which companies actually capture the value.

What counts as an AI stock

An AI stock is a publicly traded company whose business prospects are materially driven by AI development, deployment, or monetization. Two flavors matter:

  • Direct exposure. The company sells the picks and shovels of AI. GPUs, networking, foundry capacity, cloud AI services, data center infrastructure.
  • Indirect exposure. The company embeds AI to expand margin, increase pricing power, or take share. Enterprise software, cybersecurity, consumer apps with AI features.

The crowded trade lives in direct exposure. The mispriced opportunities often live in indirect exposure where AI changes a business model but the market still values the company on legacy metrics.

The AI value chain

Mapping the stack helps you build a watchlist instead of buying the same five megacaps everyone else owns.

Layer What sits here Representative names
Manufacturing equipment EUV lithography, deposition, etch ASML, Applied Materials, Lam Research
Foundry Leading-edge chip fabrication TSMC, Samsung Foundry
Accelerators and networking GPUs, custom silicon, Ethernet NVIDIA, AMD, Broadcom, Marvell
Hyperscaler cloud + platform Training, inference, foundation models Microsoft, Alphabet, Amazon
Data and observability Data clouds, MLOps, monitoring Snowflake, Datadog, Confluent
Applications AI inside workflows ServiceNow, Salesforce, Palantir, CrowdStrike
Power and real estate Data center REITs, cooling, power Equinix, Digital Realty, Vertiv

Spread positions across at least three layers. The cycle hits each one with different timing and severity.

A framework for evaluating AI stocks

Multiples alone do not tell you the story in a capex cycle. Layer five lenses.

Revenue exposure and durability

What fraction of revenue growth is tied to AI? For accelerator suppliers, watch order backlogs, lead times, and customer concentration. For software, watch net revenue retention and upsell tied to AI features. A company that mentions AI 40 times on a call but cannot point to AI-driven revenue is selling narrative.

Unit economics

Chip designers: gross margin reflects product mix and pricing power. Cloud: operating margin under rising capital intensity. Application software: aim for gross margins above 70 percent with healthy sales efficiency.

R&D intensity and platform leverage

High R&D as a percent of revenue is a strength when it builds proprietary technology or developer ecosystems. NVIDIA's CUDA and Microsoft's integration across Office and Azure are textbook examples of platform leverage compounding over time.

Moats and switching costs

Training is expensive. Shifting inference to cheaper hardware compresses margins. Look for lock-in via tooling, data gravity, marketplace effects, or customer relationships.

Valuation and scenarios

EV/Sales and EV/EBITDA for growth-stage names, P/E for profitable incumbents. Stress three scenarios: AI demand accelerates, supply catches up and compresses pricing, customers adopt cheaper alternatives. If only one scenario justifies the valuation, you have a thesis, not a position.

Three sleeves you can construct today

Picks and shovels sleeve

Concentrate around the compute and networking backbone. NVIDIA remains the reference for training accelerators. AMD provides competitive data center GPUs and a strong CPU complement. Broadcom supplies custom accelerators and Ethernet at scale. Marvell participates in high-speed networking.

Risks: cyclicality, high expectations baked into valuations, customer concentration (a few hyperscalers drive most demand). Use staged entries and ATR-based stops.

Cloud platform sleeve

Microsoft monetizes via Azure and Copilot across Office and Windows. Alphabet runs Vertex AI on TPU silicon and integrates Gemini across consumer products. Amazon's Bedrock and SageMaker reach a large developer base. The platforms cross-subsidize: cheap models drive consumption of margin-rich downstream services.

Indirect exposure sleeve

Companies where AI changes the cost structure or growth trajectory. ServiceNow and Salesforce package AI agents inside existing workflows. CrowdStrike applies AI to threat detection at scale. Palantir runs analytics on sensitive data where deployment matters as much as the model.

The crowded trade in 2024-2025 was the picks-and-shovels sleeve. The asymmetric setups in 2026 often sit in indirect exposure where AI uplift has not fully repriced.

Automating an AI stocks strategy

Conviction without execution leaks alpha. Three rules-based patterns to run on a platform like Obside.

Breakout with fundamental confirmation. "Buy 1,000 of Microsoft if it closes above the 50-day SMA and the latest earnings call referenced AI revenue acceleration above 30 percent year over year." Add a 2 ATR stop and a 12 percent take-profit.

Catalyst alerts. "Tell me when OpenAI announces a new model." "Alert me if Nvidia daily volume doubles and price closes above last month's high." "Notify me if AMD reports earnings beat above 8 percent and raises guidance."

Risk overlay. "Sell my AI basket by 20 percent if the SOX index drops more than 8 percent in five sessions." "Reduce AI exposure if VIX closes above 28."

The backtest engine returns Sharpe, max drawdown, and hit rate on each ticker in seconds. The same rule set goes live without rewriting code.

Position sizing beats stock picking. A 6 percent cap per ticker means the conviction-killing 50 percent drawdown costs 3 percent of portfolio, not 30.

Honest considerations

Semiconductors are cyclical. Cloud capex can slow if a few large customers pull back. Application software faces competitive pressure as foundation models commodify capabilities that used to be moats. Diversify across layers, cap position sizes, and write your exit rules before you enter.

The biggest mistake in this theme is concentration in one or two names because they had a great year. The second is selling on the first 30 percent drawdown — every megacap winner of the last decade had multiple drawdowns of that depth on the way to compounding 5x.

Ready to run your AI stocks strategy?

Pick three names across the value chain, write the entry, exit, and risk rules, and let a platform run them. Obside Copilot accepts plain English, returns a backtest in seconds, and routes orders through your broker with the risk controls baked in.

Create your free Obside account and ship your first AI stocks rule today.

Educational content only. This is not investment advice. Investing involves risk, including possible loss of capital.

FAQ

Hardware enablers (semis, networking, equipment, foundries), cloud platforms (hyperscalers running training and inference), data and tooling (data clouds, MLOps, observability), and applications (productivity, cybersecurity, analytics, automation). Plus indirect beneficiaries like data center REITs and power infrastructure.

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