An AI-Driven American Stock Market Investment Assistant

MVP Functional Blueprint for LLM-Powered Real-Time Trading Assistant


🔹 Goal

Build a real-time trading assistant that combines:

  • Real-time stock data
  • News sentiment analysis
  • Fundamental + technical analysis
  • LLM-based strategy reasoning
  • Personalized trading style memory

🔍 MVP Features

1. Real-Time Market Dashboard

  • Watchlist panel with price, % change, volume
  • Mini charts (15min / 1h / 1D) for each ticker
  • Search & add/remove tickers

Tech: TradingView widget / Yahoo Finance API / Polygon.io

2. News Aggregator & Summarizer

  • Auto-fetch relevant headlines (via Google News / Twitter / RSS)
  • LLM summarizes and scores sentiment (bullish / bearish / neutral)

Tech: NewsAPI + OpenAI GPT-4o / Claude / LangChain

3. Fundamental Overview (Optional in MVP)

  • P/E, FCF, revenue, YoY, sector comparisons
  • GPT interprets: “Is this fundamentally undervalued or not?”

Tech: OpenBB API or Yahoo Finance API

4. Technical Signal Engine

  • TA indicators: MA cross, RSI, MACD, Bollinger Band
  • LLM explains current structure in natural language

Tech: ta-lib, pandas-ta + GPT

5. Strategy Reasoning Engine (LLM-powered)

  • Input: User’s position, favorite tickers, news, tech + fund data

  • Output: Action recommendations under different trading styles:

    • Conservative
    • Swing / Trend Following
    • Momentum / Scalp

🏢 MVP Architecture

  • Frontend: React + TailwindCSS

  • Backend: FastAPI + LangChain

  • LLM: OpenAI GPT-4o or Claude (local: Mistral-7B + RAG for privacy)

  • DB: Supabase (user state, position, logs)

  • Data Feed:

    • Yahoo Finance / Alpha Vantage for price
    • NewsAPI + Twitter Scraper for sentiment
    • TA-Lib or custom logic for indicators

⚖️ Strategy Engine Prompt Template (v0.1)

System Prompt (in LangChain):

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You are a professional market strategist. You will analyze the user's portfolio and watchlist based on real-time data, fundamentals, news sentiment, and technical signals. Provide strategy-aligned advice.

User Prompt Template:

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User Profile:
- Risk tolerance: {{risk_level}}
- Strategy style: {{style}} (e.g. conservative, swing, momentum)
- Current holdings:
{{holdings}}
- Watchlist:
{{watchlist}}

Market Snapshot:
- Ticker: {{ticker}}
- Price: {{price}}, Change: {{pct_change}}, Volume: {{volume}}
- News Sentiment: {{news_sentiment}}
- Fundamentals: {{valuation_summary}}
- Technical Signals: {{ta_summary}}

Instructions:
1. Assess the risk/reward for each holding and watchlist stock.
2. For each, suggest an action: Buy / Hold / Sell / Avoid.
3. Provide reasoning for each action, based on the user's strategy.
4. Highlight any upcoming events or risks.
5. If unclear, ask follow-up questions.

✅ Next Suggestions

  • Add memory module for tracking user strategy patterns (e.g. prefers pullbacks, hates chasing highs)
  • Future: hook to broker API (IBKR, Alpaca) for live execution
  • Plug in LLM vision (OpenAI GPT-4o) to read charts/screenshots

Let me know if you want a working Python prototype next.

Elvin,你的这个想法是非常前沿且具备实用价值的投资辅助工具方向,本质上是把传统的量化看盘逻辑与大模型的认知能力结合起来,未来非常有潜力成为一类新型”个性化投资助理”。


✅ 一句话描述你的目标工具

一个结合实时行情 + 多模态分析(消息面/基本面/技术面)+ LLM智能策略建议的个人交易辅助系统。


🎯 功能模块分解与可实现性评估

模块 功能目标 技术难度 实现建议
1. 实时行情模块 实时展示自选股票行情、盘口、K线图等 ⭐⭐ 接入 Yahoo Finance、Polygon、Alpha Vantage 或 TradingView Widget/SDK
2. 消息面采集分析 抓取新闻、公告、推特、Reddit,并由 LLM总结 ⭐⭐⭐⭐ 用 news API + Scraper + LangChain agent 分析;或用 Unstructured.io 处理混合源
3. 基本面解析 提取财报、估值指标(PE、PS、FCF等) ⭐⭐⭐ 用 OpenBB API / Yahoo 财报API + 规则/模型解析
4. 技术面分析 K线结构、均线、成交量、形态识别、指标背离等 ⭐⭐⭐ 使用 TA-Lib / Pandas-ta + 模型规则提示
5. LLM策略建议引擎 综合分析后输出”保守型/进攻型/趋势型”操作建议 ⭐⭐⭐⭐⭐ 构建 Prompt 模板 + 记忆系统,支持个性化风格调整(你的交易风格记忆很关键)
6. 个性化记忆系统 记住你的偏好、风险承受、常持标的结构 ⭐⭐⭐⭐ 用向量数据库(如 Chroma/Weaviate)或本地 JSON 存储用户风格记忆

✅ 技术栈建议

模块 推荐技术
后端框架 FastAPI + LangChain/Transformers (OpenAI API or LLaMA2/Claude)
前端界面 React + ECharts/TradingView Widget + Tailwind CSS
数据源 Alpha Vantage / Polygon / OpenBB / Yahoo API
模型调用 OpenAI GPT-4o or local LLM + 专属策略模板 Prompt
策略规则引擎 自研交易风格模块(可用 DSL)或插件式系统设计
存储 Supabase/Postgres + Chroma 向量索引(记忆部分)

🧠 是否难?实际是这样:

层次 难点 解决方案
✅ MVP 实现 有行情、有消息分析、有操作建议 3–5周可完成初版,先用 GPT-4 + OpenBB/yahoo
⚠️ 全面进阶 全自动消息挖掘 + 多账户联动 + 高频执行 需高级开发能力,分阶段做

📌 总体来说,实现不难,但要做”智能+有用”关键在于:

  • 你输入的交易风格足够明确;
  • 模型有规则框架辅助,不是泛泛输出;
  • 数据来源干净、稳定、结构化。

✅ 下一步建议

  1. 我可以帮你先出一份【MVP版功能蓝图草图】(技术+功能+架构)
  2. 如果你有时间做前端,我可以帮你配 API + 模型 Prompt
  3. 你可以先用 ChatGPT API 做策略脑,先跑 Demo

是否要我现在先为你出一份【MVP产品功能图 + 模块草图】,你拿去考虑开发框架?或者你希望我先帮你写策略引擎的 Prompt 模板?