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Sigma builds a structured research memo — valuation, bull/bear cases, risk factors, watch zones, and exposure scenarios — on any ticker, in under 15 seconds. Free to start.

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Scenarios logged
Single Stock Analysis
NVDA · NVIDIA Corporation
BULLISH Verdict
Momentum breakout confirmed; data center demand intact.
Bull Case
Blackwell GPU ramp accelerating; hyperscaler capex in early innings. Gross margins recovering toward 75%+ — pricing power intact.
Bear Case
Stock priced for perfection at ~30x forward. Any demand slowdown or export restriction would trigger significant multiple compression.
Entry Zone $112–$116
Scenario mid $134
Stop $104
Confidence High
Updated provider market data

Illustrative output. Not investment advice. See disclaimer

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This is a real Sigma analysis on NVDA — the same structured format delivered on every ticker. No login required to read it.

AI Research Snapshot
NVDA Nvidia Corp.
$118.42 +2.8% today
Overall Bullish
Bull case
AI infrastructure demand remains structural; Blackwell ramp accelerating. Data center capex from hyperscalers continues through 2025. Revenue consensus may be conservative — a beat/raise cycle is likely. Dominant position in CUDA ecosystem creates high switching costs and pricing power.
Bear case
Valuation stretched at 38× forward earnings with near-zero margin for guidance miss. Export restriction risk re-escalating on China chip rules. Competitive pressure from AMD and custom silicon (AWS Trainium, Google TPU) starting to compress market share at the margin. Any macro slowdown hits capex budgets first.
Watch zone $112–$116
1-month scenario $134
Invalidation $104
Risk / reward 1 : 2.1
Sigma’s take

Strong secular tailwind, but the current setup assumes investors keep paying full price for the story. The $112–$116 watch zone is where the upside/downside math improves. Blackwell shipment cadence is the key variable: a strong Q2 print would strengthen the bull case materially.

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The system

Not a chatbot.
A structured decision engine.

Research Snapshot
NVDA: momentum strong, valuation stretched, entry discipline required.

Sigma turns quote, fundamentals, news, sentiment, and profile context into a structured thesis: scenario ranges, invalidation, exposure math, and risk warnings.

Confidence High
Scenario $134
Risk / reward 1:2.4
Scenario scorecard
MSFT 1M range hit
SPY direction correct
TSLA stop discipline watching
AAPL earnings reaction pending
Capabilities

Everything you need.
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AI Stock Analysis
Deep fundamental and technical analysis powered by advanced AI. Valuation scoring, edge rankings, scenario modeling, bull/bear cases.
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Market Data
Quotes, financials, insider activity, and news from third-party data providers. Some data may be delayed or cached. Details
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Exposure Scenarios
Scenario-based exposure math that factors in your portfolio size, risk tolerance, and trading style. Research output, not instructions.
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Stock Comparison
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Portfolio Review
Full portfolio analysis with concentration risk, sector exposure, SWOT, beta, and per-position scenario labels.
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Scenario Scorecard
Eligible AI scenario ranges are logged and checked later. See calibration rates and adjust confidence over time.
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ETF Analysis
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The analyst workflow

The framework top analysts use.
Now automated.

The old way
  • Jump between charts, filings, news, screeners, and notes. Miss things anyway.
  • Ask generic AI questions that ignore your portfolio and provider price context.
  • Forget old scenario ranges and invalidation levels. Never know if your thesis was actually right.
The Sigma way
  • One place: stock, portfolio, sector, earnings, or market brief — structured output every time.
  • Analyst-grade methodology: valuation, scenario framing, risk factors, exposure math.
  • Eligible scenarios logged and scored — so your calibration improves over time.
Calibration ledger

Eligible scenarios logged.
Misses included.

No tool in this space shows you when it was wrong. Sigma logs eligible scenario ranges under one scoring method — graded against what actually happened. That's accountability, not marketing.

Eligible
Scenarios tracked
Official
Public ledger visible
Graded
Hits and misses alike
See the public track record →
Live today

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One read of the market.

Buffett's value rules. O'Neil's distribution days. Minervini's trend template. Thorp's Kelly sizing. Every session, ten disciplines read the same tape — measured on the full S&P 500 — and a chair tallies the votes. Rules, not vibes: every number traces back to price and volume.

Council consensus · today
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Confidence
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Stocks scanned
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Above 50-day
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Kelly equity sizing
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Reference data, not investment advice. Rules-based signals are hypothetical and do not guarantee future results.

Don't take our word for it

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Most landing pages put words in customers' mouths. We'd rather point you at the ledger — every call Sigma stands behind, scored against what actually happened. Read it before you trust a single claim on this page.

Every official call is logged the moment it's made — with the entry price and a scoring date fixed up front. No backdating, no hindsight.
Made, then scored
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Append-only by design
No headline hit-rate until there's enough scored calls to mean something. We won't show you a "100% (3 calls)" number to look good.
Honest with the math
Statistics, not spin
Read the full record →
How It Works

From question
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01
Ask anything
Type a stock ticker, ask to compare two companies, request a market outlook, or analyze your entire portfolio. Natural language, no syntax to learn.
02
AI fetches real data
The AI determines exactly which market data to query — quotes, financials, insider activity, news, sentiment — and pulls everything in parallel.
03
Deep analysis, structured output
The AI analyzes the data against your profile and returns a structured Research Snapshot — valuation, edge rankings, scenarios, technicals, exposure math, and risk warnings.
04
Track and iterate
Eligible scenarios are tracked. Ask follow-ups, compare alternatives, review your history. Your calibration compounds over time.
Plans

Analyst-grade research.
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Professional terminals charge $24,000/yr for institutional data feeds. Sigma is AI research software focused on retail investors — different scope, fraction of the price.

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Professionals + power users
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Questions

Know what you are buying.

Is this financial advice?
No. Sigma is research software. It helps structure market data, risks, and scenarios so you can make your own decisions.
Why not just ask a generic AI tool?
Sigma adds latest provider context, saved profile data, portfolio context, alerts, and scenario scorecards around each answer.
Can I use it for earnings?
Yes. Pro and Elite users can run pre-earnings previews and recent earnings assessments with EPS history and reaction framing.
Can I cancel?
Yes. Paid plans are monthly. Billing is managed through the account billing portal.
Is my data secure?
Passwords are hashed with bcrypt. Sessions use JWT. Any keys you bring (such as your own Anthropic key) are encrypted at rest with AES-256-GCM. API keys you generate are stored as SHA-256 hashes, never as plaintext. We do not sell or share personal data for advertising.
Where does the market data come from?
Quotes, fundamentals, news, and insider activity come from third-party data providers with caching to keep latency low. Coverage focuses on US-listed stocks and ETFs; data can be delayed, incomplete, or corrected.
Which AI model does Sigma use?
Sigma is powered by Anthropic Claude. Heavier analyses run on Sonnet for reasoning; lighter routing tasks run on Haiku for speed and cost. Elite users can plug in their own Anthropic API key for unlimited usage.
Do you support markets outside the US?
Today Sigma is focused on US-listed stocks and ETFs (NYSE, Nasdaq, AMEX). Coverage of other markets is on the roadmap and will be enabled as data partners are added.

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