TL;DR — which tool for which person
| Tool | Best for | AI depth | Free tier |
|---|---|---|---|
| Compounder | Understanding what a company is worth — multi-method valuation, quality score and an AI reading of the 10-K | Valuation + 10-K summarisation + assistant | Yes (limits) |
| Simply Wall St | Visual snowflake summaries and portfolio monitoring across global markets | Templated narratives | Limited |
| TradingView | Charts, technical analysis and screeners — the trader's standard | Light (assistant features) | Yes |
| FinChat (Fiscal.ai) | Institutional-grade data and an AI copilot over filings and KPIs | Strong chat over data | Limited |
| StockAnalysis.com | Fast, clean, free fundamentals lookups | Minimal | Yes, generous |
What "AI stock analysis" should actually mean
Most tools slap "AI" on a chatbot. A useful AI analysis tool should do at least three jobs: (1) pull trustworthy data (ideally as-filed SEC fundamentals, not scraped aggregates); (2) turn it into a valuation with stated assumptions — not a black-box price target; and (3) compress the qualitative reading (the 10-K's business, risk factors and MD&A) into something you can check in minutes. Judge every tool on those three.
Compounder — valuation-first, explains its reasoning
Compounder is built around one question: what is this company worth, and what are you paying for it? It estimates intrinsic value three independent ways (DCF on owner earnings, fair multiples aligned to the fiscal period, and owner-earnings yield), averages them into a margin of safety, scores business quality (ROIC, margins, leverage, moat) and has AI read the 10-K straight from SEC EDGAR — cross-checking the narrative against the numbers. Every metric shows its reasoning. It's free to start; the universe is ~100 large US-listed companies and growing. Weaknesses: US-only coverage today, no portfolio tracking, and no global small caps yet. If you need international coverage, look at Simply Wall St.
Simply Wall St — the visual generalist
Great-looking "snowflake" visual per company, global coverage and solid portfolio monitoring. Its narratives are template-generated rather than deep AI reading, and valuation is mostly a single-method fair value. Pick it if you hold international stocks and want a visual health check. Skip it if you want to interrogate the assumptions behind a valuation.
TradingView — charts first, fundamentals second
The best charting product, period, with a huge screener and community. Fundamentals and AI reading are not its core. Pick it if you trade on technicals. Pair it with a fundamentals tool (like Compounder or FinChat) if you invest on business quality.
FinChat / Fiscal.ai — data depth with an AI copilot
Excellent segment-level KPIs, transcripts, and a capable AI chat grounded in filings. Aimed at professionals; the free tier is tight and pricing scales up fast. Pick it if you need analyst-grade data depth and will pay for it.
StockAnalysis.com — the fast free reference
Clean, fast, genuinely free fundamentals and screeners. No real valuation engine or AI reading. Pick it as a quick reference; you'll outgrow it the day you ask "but is it cheap?"
How to choose (a 30-second framework)
- "Is this business good and is the price fair?" → Compounder.
- "How is my global portfolio doing?" → Simply Wall St.
- "Where do I enter/exit?" → TradingView.
- "I need segment KPIs and transcripts." → FinChat.
- "Just show me the numbers, free." → StockAnalysis.com.