How NexaMarkets Works: The AI Behind the Scores

Every sentiment score you see on NexaMarkets is the result of a pipeline that runs 3 times per day, pulling data from 8 different sources and feeding it all into Claude AI by Anthropic. Heres exactly how it works.

Step 1: Data collection (8 sources)

For each of our 72+ assets, the pipeline fires off requests to 8 sources simultaneously. Finnhub gives us institutional-grade financial news. Reddit gives us retail sentiment from WallStreetBets, r/stocks, and r/cryptocurrency. StockTwits gives us active trader sentiment with native bull/bear tags. Alpha Vantage provides pre-scored news sentiment. Google News RSS and Yahoo Finance RSS give us major outlet headlines. Benzinga adds financial-specific news. And for crypto, CoinGecko adds community sentiment votes and price change data.

Step 2: AI analysis

All the collected data — sometimes 20+ articles and social posts per asset — gets sent to Claude AI in a single prompt. Claude doesnt just count positive and negative words. It understands context. "NVDA crushed earnings but guidance was weak" is a nuanced signal that simple keyword tools would misread. Claude produces a 0-100 score, a label (BULLISH/BEARISH/NEUTRAL), a confidence level, and a 2-3 sentence summary explaining WHY the sentiment is what it is.

Step 3: Smart signal detection

The AI also classifies each asset into a signal type. CROWDED_LONG means everyone is bullish and mentions are high — reversal risk. EARLY_ACCUMULATION means sentiment is quietly shifting with low mentions — smart money may be positioning. DIVERGENCE means news says one thing but social media says another. SENTIMENT_EXHAUSTION means the score is extreme but interest is fading.

Step 4: Storage and delivery

Results are stored in Supabase with full metadata — score, label, confidence, velocity (how fast sentiment is changing), mention counts, source breakdown, and the AI summary. The dashboard pulls this data in real time. Alerts fire if any score crosses a users threshold. The weekly digest email summarizes the biggest movers.

Why 8 sources matters

Most sentiment tools use one source — usually just news. Thats like checking the weather by looking out one window. Our approach combines institutional news, retail social media, community votes, and AI analysis. When Finnhub says bullish but Reddit says bearish, that divergence IS the signal. Single-source tools miss this entirely.

Disclaimer: For informational purposes only. Not financial advice.