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ftd-detector

Detect Follow-Through Day signals in S&P 500 and NASDAQ data.

Updated Apr 17, 2026
Search Tags:#technical-analysis#market-timing#signal-detection#fmp#ftd#follow-through#market-bottom
One-click install
npx skills add https://github.com/pasie15/claude-trading-skills-marketplace --skill ftd-detector-pasie15
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ftd-detector
Source: https://github.com/pasie15/claude-trading-skills-marketplace/tree/main/plugins/trading-earnings-timing/skills/ftd-detector
Command: npx skills add https://github.com/pasie15/claude-trading-skills-marketplace --skill ftd-detector-pasie15

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires requests, and includes scripts (resource) and references (resource) components.

What problem does it solve?

Detects and quantifies Follow-Through Day (FTD) signals to determine whether a market correction is transitioning into a sustainable rally, helping traders decide when it is reasonably safe to increase equity exposure.

Core Features & Use Cases

  • Dual-index analysis: Tracks both S&P 500 and NASDAQ to provide single-index and dual-index confirmation with an optional +15 quality bonus for dual confirmation.
  • State machine workflow: Implements correction → rally attempt → FTD window → confirmation/invalidation logic to avoid premature signals.
  • Quality scoring & exposure guidance: Produces a 0-100 quality score with graduated exposure recommendations and post-FTD monitoring rules (distribution days, invalidation).
  • Outputs & reports: Generates JSON and human-readable Markdown reports for integration into trading workflows or archival.
  • Use case: After a 3%+ correction, run the detector to see if a rally attempt qualifies as an FTD, receive the quality score, and get recommended exposure actions.

Quick Start

Analyze the S&P 500 and NASDAQ for Follow-Through Day signals and return a Markdown report with a quality score and recommended exposure level.

Frequently Asked Questions about ftd-detector

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I detect a Follow-Through Day to confirm a market bottom?▼

A Follow-Through Day signals a market correction is transitioning into a sustainable rally by showing significant index gains on higher volume. It occurs after a qualifying correction and rally attempt, helping traders safely increase equity exposure.

Can I use FMP API data for S&P 500 and NASDAQ market timing signal detection?▼

Yes, an optional FMP API key enables fetching historical and current S&P 500 and NASDAQ price and volume data for market timing signal detection. The detector uses this data to evaluate corrections and rally attempts.

How do I calculate post-FTD distribution risk and recommended exposure levels?▼

You calculate post-FTD distribution risk and exposure recommendations by scoring Follow-Through Day quality on a 0-100 scale. The detector outputs JSON and Markdown reports with state, quality scores, and graduated exposure levels based on dual-index confirmation.

What are the limitations of Follow-Through Day signals for technical analysis?▼

Follow-Through Day signals require a qualifying 3%+ market correction and subsequent rally attempt before validation. The detector flags invalidation and post-FTD distribution risk, but FTD signals can still fail if the market immediately weakens after confirmation.

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