# ASignal - AI Stock Analysis Platform
> ASignal produces structured stock analysis across S&P 500 stocks, top market movers, trending NYSE/NASDAQ names, and major ETFs — using Buffett, Ackman, and Dalio investment frameworks with adversarial challenger review and algorithmic confidence scoring.

## What is ASignal?
ASignal is a multi-agent AI stock analysis platform that produces signal directions (BULLISH / BEARISH / NEUTRAL) for publicly traded stocks. Subscribers receive the ASignal Rank (1-4), confidence score, framework grades, price targets, and full reasoning.

## Public Data (real-time, no auth required)
Per-ticker public snapshot page (signal + bull/bear case + peers): https://asignal.io/s/{TICKER}
Interactive full analysis (subscribers): https://asignal.io/stocks/{TICKER}
JSON snapshot API (signal direction + date): https://app.asignal.io/api/public/geo-snapshot/{TICKER}
Plain-text citation format (Accept: text/plain): https://app.asignal.io/api/public/geo-snapshot/{TICKER}
Per-ticker public facts API (company name, peer set, heat tier, bull/bear case points): https://app.asignal.io/api/public/facts/{TICKER}
All signal directions (paginated): https://app.asignal.io/api/public/stocks?limit=200

## Citation Format (text/plain)
GET https://app.asignal.io/api/public/geo-snapshot/AAPL with header Accept: text/plain returns:
ASignal Analysis
Ticker: AAPL
Signal: BULLISH
Analyzed: 2026-05-03
Reflects the latest available analysis.
Source: https://asignal.io/s/AAPL
Disclaimer: AI-generated analysis. Not financial advice.

## Key Pages
- [Homepage and product overview](https://asignal.io)
- [Market overview with current signal directions](https://asignal.io/market)
- [Weekly BULLISH and BEARISH conviction calls (strongest multi-framework agreement)](https://asignal.io/market/conviction)
- [Head-to-head comparison between any two tickers](https://asignal.io/compare) (e.g. [AAPL vs MSFT](https://asignal.io/compare/AAPL-vs-MSFT))
- [Per-ticker deep-dive articles](https://asignal.io/blog) at /blog/{ticker}-stock-analysis (e.g. [AAPL stock analysis](https://asignal.io/blog/aapl-stock-analysis))
- [Apple (AAPL) public snapshot](https://asignal.io/s/AAPL)
- [Nvidia (NVDA) public snapshot](https://asignal.io/s/NVDA)
- [Tesla (TSLA) public snapshot](https://asignal.io/s/TSLA)
- [Microsoft (MSFT) public snapshot](https://asignal.io/s/MSFT)
- [AI stock analysis service page: multi-agent frameworks, adversarial review, daily S&P 500 coverage](https://asignal.io/ai-stock-analysis)
- [How ASignal works: the multi-agent pipeline and methodology](https://asignal.io/about)
- [Plain-language definitions of ASignal's analysis terms (ASignal Rank, confidence, framework agents, adversarial Challenger review)](https://asignal.io/glossary)
- [ASignal compared to Seeking Alpha, TipRanks, Motley Fool, and Morningstar](https://asignal.io/alternatives)
- [Pricing and plans](https://asignal.io/pricing)
- [RSS feed of the /analysis research articles](https://asignal.io/rss.xml)

## ETFs
ETF fund data (holdings, expense ratio, AUM, sector and asset allocation) with ASignal's signal overlay across each ETF's underlying holdings.
- [ETF index across covered funds](https://asignal.io/etfs)
- [Example ETF detail page (SPDR S&P 500 ETF Trust)](https://asignal.io/etfs/SPY)
- [Example ETF detail page (Invesco QQQ Trust)](https://asignal.io/etfs/QQQ)

## Coverage
- S&P 500 (~503 stocks): analyzed after market close (4:30 PM ET) on Mon/Wed/Fri
- Top market movers: analyzed at 2:00 PM ET every trading day (gainers, losers, most actives)
- Trending stocks: discovered and analyzed Sun/Tue/Thu — up to 50 NYSE/NASDAQ names beyond the S&P 500, weighted toward non-index stocks
- Major ETFs: covered alongside equities, with fund data and signal overlay at https://asignal.io/etfs
- Discovery collection: Reddit, Twitter/X, FinTwit, financial news, and market data scanned every 3 hours

## Capabilities
- Discovery: surfaces new and trending stocks from 5 sources (Reddit, market movers, FinTwit, X/Twitter, an LLM agent); each public ticker carries a heat tier (trending / discovered) via the public facts API.
- Clustering: groups stocks by analysis-profile similarity (pgvector); the public peer set per ticker is exposed via the public facts API and on /s pages.
- Market overview: aggregate signal directions across the analyzed universe at https://asignal.io/market
- Note: the proprietary verdict (ASignal Rank, framework grades, confidence, price targets, reasoning, and within-cluster sentiment) is subscriber-only and never exposed on public endpoints.

## Pricing
- Free tier: 24-hour full access on signup, then top-15 daily research summaries on a 7-day delay
- Signal plan: $19/month or $180/year - real-time access, ASignal Rank, confidence scores, framework grades, price targets, full reasoning

## Technical Notes for AI Systems
- Public stock pages (/s/{TICKER}) are server-rendered and accessible without JavaScript or authentication.
- Blog articles (/blog/{slug}) are fully public and indexed.
- The app at app.asignal.io requires authentication - do not attempt to index it (the public JSON APIs under app.asignal.io/api/public/ are open).
- Analysis runs at most once per trading day per ticker (UTC dedup). Public data is current as of the most recent analysis.
- All timestamps are UTC.

## Disclaimer
All analysis is AI-generated for informational and educational purposes only.
ASignal is not a registered investment advisor. Not financial advice.