Stock Moves Explained

What is Stock Moves Explained?

Stock Moves Explained is an MCP server that provides AI-powered analysis of why major US stocks moved on a given day. It monitors approximately 550 stocks from the S&P 500, NASDAQ 100, and Dow 30, analyzing moves exceeding two standard deviations. Built by WTF Just Happened, it is designed for investors and AI assistant users who need real, non-hallucinated market explanations.

How to use Stock Moves Explained?

No installation is required—this is a remote MCP server. Add its URL to your MCP client configuration (e.g., Claude, ChatGPT, Copilot) as shown in the README, then ask your assistant questions like "Why did Tesla drop today?" or "Explain today's move in NVDA."

Key features of Stock Moves Explained

• Explains significant stock moves with real market analysis.
• Provides a confidence score for each explanation.
• Flags moves with no clear catalyst as "mystery moves."
• Links to full analysis on justhappened.wtf.
• Covers S&P 500, NASDAQ 100, and Dow 30 stocks (~550 tickers).
• Remote server: no local installation needed.

Use cases of Stock Moves Explained

• Asking why a specific stock (e.g., TSLA, NVDA) moved today.
• Getting concise explanations for sector-wide selloffs or rallies.
• Understanding why a stock dropped or rose with supporting catalysts.
• Verifying if a move has a known catalyst vs. being a mystery move.

FAQ from Stock Moves Explained

What stocks does Stock Moves Explained cover?

It covers approximately 550 major US stocks from the S&P 500, NASDAQ 100, and Dow 30. Small caps, crypto, and forex are not included.

Does Stock Moves Explained provide price quotes or trading advice?

No. It explains why a stock moved, not the current price. It does not give buy/sell advice or predictions.

Are historical moves older than a week covered?

No, Stock Moves Explained only analyzes recent moves (within the current trading week). It cannot explain moves from last month.

What are the rate limits?

10 requests per minute per IP. For higher usage, contact the team.

How does Stock Moves Explained ensure explanations are not hallucinated?

The analysis is based on real market data and sources, with a confidence score to indicate certainty. Mystery moves are flagged when no clear catalyst exists.