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US Stock Market Sentiment Monitoring System

美股市场情绪监控系统

This skill helps you systematically analyze US stock market sentiment, determine whether the current market is in a state of greed or fear based on 5 core indicators, and provide position adjustment recommendations.
本技能可帮助你系统性分析美股市场情绪，基于5项核心指标判断当前市场处于贪婪还是恐惧状态，并提供仓位调整建议。

Use Cases

使用场景

Use this skill when users ask the following types of questions:
  • Is the US stock market overheating / Should I reduce my positions
  • What is the current market sentiment
  • What are institutional and retail investor positioning levels
  • Are valuations too high
  • Market risk assessment
当用户提出以下类型的问题时，使用本技能：
  • 美股市场是否过热 / 我应该减仓吗
  • 当前市场情绪如何
  • 机构和散户的持仓水平是多少
  • 估值是否过高
  • 市场风险评估

Analytical Framework

分析框架

5 Core Monitoring Indicators

5项核心监控指标

For each indicator, use web_search to find the latest data, then evaluate according to the criteria below.
针对每个指标，使用web_search查找最新数据，然后根据以下标准进行评估。

Indicator 1: NAAIM Exposure Index

指标1：NAAIM持仓指数

What it is: The full name is National Association of Active Investment Managers Exposure Index, published weekly by the association of active investment managers in the US. It reflects the current equity exposure of active investment managers (0 = fully in cash, 100 = fully invested, can exceed 100 indicating leverage).
Search keywords: 
NAAIM exposure index latest
or 
NAAIM exposure index this week
Warning criteria:
  • Value > 80 and median reaches 100 → ⚠️ Warning: Institutions are near full allocation, limited room for further buying
  • Value 40-80 → ✅ Normal
  • Value < 40 → 📉 Institutions have significantly reduced positions, possibly a panic signal (contrarian indicator: may be an entry opportunity)
Key interpretation: When nearly all active fund managers are fully invested, it means "everyone who can buy has already bought," and there is a lack of new buying power to push stock prices higher.
定义：全称为美国主动投资经理协会持仓指数，由美国主动投资经理协会每周发布。它反映了主动投资经理当前的股票持仓比例（0=全现金，100=满仓，超过100表示使用杠杆）。
搜索关键词：
NAAIM exposure index latest
或 
NAAIM exposure index this week
预警标准:
  • 数值>80且中位数达到100 → ⚠️ 预警：机构接近满仓，进一步买入空间有限
  • 数值40-80 → ✅ 正常
  • 数值<40 → 📉 机构大幅减仓，可能是恐慌信号（逆向指标：或为入场机会）
核心解读：当几乎所有主动基金经理都满仓时，意味着“能买的人都已经买了”，缺乏新的买盘推动股价上涨。

Indicator 2: Institutional Equity Allocation

指标2：机构股票配置比例

What it is: Data published by large asset custodians such as State Street, reflecting the percentage of equity allocation in the portfolios of global institutional investors (pension funds, insurance companies, sovereign wealth funds, etc.).
Search keywords: 
State Street institutional equity allocation
or 
institutional investor equity allocation percentage
Warning criteria:
  • At historical extreme levels since 2007 → ⚠️ Warning: Institutional allocation is too high, a classic contrarian indicator
  • Moderate levels → ✅ Normal
  • Historical lows → 📉 May signal a bottom
Key interpretation: Institutional investors as a whole are typically "late to the party" — they are most optimistic at the top (highest allocation) and most pessimistic at the bottom (lowest allocation).
定义：由道富银行等大型资产托管机构发布的数据，反映全球机构投资者（养老基金、保险公司、主权财富基金等）投资组合中的股票配置占比。
搜索关键词：
State Street institutional equity allocation
或 
institutional investor equity allocation percentage
预警标准:
  • 达到2007年以来的历史极值 → ⚠️ 预警：机构配置过高，经典逆向指标
  • 适中水平 → ✅ 正常
  • 历史低位 → 📉 可能是底部信号
核心解读：整体而言，机构投资者通常“后知后觉”——在顶部时最为乐观（配置最高），在底部时最为悲观（配置最低）。

Indicator 3: Retail Net Buying

指标3：散户净买入额

What it is: Daily retail investor fund flow data tracked by JPMorgan, calculating the net buying amount of retail investors in the stock market.
Search keywords: 
JPMorgan retail investor net buying
or 
retail investor flows equity
Warning criteria:
  • Daily average buying > 85th historical percentile → ⚠️ Warning: Retail sentiment is overheated, high risk of chasing tops
  • Normal levels → ✅ Normal
  • Significant net selling → 📉 Panic selling (may be a contrarian buy signal)
Key interpretation: Retail investors tend to pile in when the market is hottest and sell when panic is greatest. Extreme retail buying often signals a short-term top.
定义：摩根大通追踪的每日散户资金流向数据，计算散户在股市中的净买入金额。
搜索关键词：
JPMorgan retail investor net buying
或 
retail investor flows equity
预警标准:
  • 日均买入额超过历史85分位 → ⚠️ 预警：散户情绪过热，追高风险高
  • 正常水平 → ✅ 正常
  • 大幅净卖出 → 📉 恐慌性抛售（或为逆向买入信号）
核心解读：散户往往在市场最热时涌入，在恐慌最严重时抛售。极端散户买入通常预示短期顶部。

Indicator 4: S&P 500 Forward P/E Ratio

指标4：标普500预期市盈率（Forward P/E Ratio）

What it is: The current S&P 500 index price ÷ expected earnings per share over the next 12 months (Forward Earnings). This is one of Wall Street's most commonly used valuation metrics.
Search keywords: 
S&P 500 forward PE ratio current
or 
S&P 500 forward earnings multiple
Warning criteria:
  • Approaching or exceeding 22-23x (near the 2000 dot-com bubble or 2021 highs) → ⚠️ Warning: Valuations are too high
  • 16-20x → ✅ Reasonable range
  • Below 15x → 📉 Valuations are low (may be an entry opportunity)
Key interpretation: A high P/E ratio means investors are paying more for each dollar of earnings. When the forward PE approaches historical peaks, it indicates that stock prices have already "priced in" a great deal of future growth expectations.
定义：当前标普500指数价格 ÷ 未来12个月的预期每股收益（Forward Earnings）。这是华尔街最常用的估值指标之一。
搜索关键词：
S&P 500 forward PE ratio current
或 
S&P 500 forward earnings multiple
预警标准:
  • 接近或超过22-23倍（接近2000年互联网泡沫或2021年高点） → ⚠️ 预警：估值过高
  • 16-20倍 → ✅ 合理区间
  • 低于15倍 → 📉 估值偏低（或为入场机会）
核心解读：高市盈率意味着投资者为每美元收益支付更高的价格。当预期市盈率接近历史峰值时，表明股价已经“提前反映”了大量未来增长预期。

Indicator 5: Hedge Fund Leverage

指标5：对冲基金杠杆率

What it is: The borrowing multiple used by hedge funds in their investments. The higher the leverage, the more money the fund borrows to amplify its investments. Typically reported by the Prime Brokerage divisions of Goldman Sachs and Morgan Stanley.
Search keywords: 
hedge fund leverage ratio Goldman Sachs
or 
hedge fund gross leverage prime brokerage
Warning criteria:
  • Leverage at historical highs → ⚠️ Warning: Crowded positions + high leverage = volatility amplifier
  • Moderate levels → ✅ Normal
  • Historical lows → 📉 Deleveraging is complete, market may stabilize
Key interpretation: High leverage is like a "powder keg" — no problem when the market is normal, but once a pullback occurs, forced liquidations trigger chain reactions, turning minor pullbacks into major crashes.
定义：对冲基金在投资中使用的借贷倍数。杠杆率越高，基金借入的资金越多，以放大投资收益。通常由高盛和摩根士丹利的主经纪商部门发布。
搜索关键词：
hedge fund leverage ratio Goldman Sachs
或 
hedge fund gross leverage prime brokerage
预警标准:
  • 杠杆率处于历史高位 → ⚠️ 预警：拥挤持仓+高杠杆=波动放大器
  • 适中水平 → ✅ 正常
  • 历史低位 → 📉 去杠杆完成，市场或企稳
核心解读：高杠杆就像“火药桶”——市场正常时没问题，但一旦出现回调，强制平仓会引发连锁反应，将小幅回调演变成大幅暴跌。

Comprehensive Assessment Logic

综合评估逻辑

Count how many of the 5 indicators are in warning status:
Warning IndicatorsSentiment RatingPosition Recommendation
0😨 PanicConsider gradually adding positions, watch for oversold rebound opportunities
1📊 Neutral-CautiousMaintain current positions, monitor trends
2📊 Neutral-OptimisticMinor adjustments acceptable, mind risk controls
3🟡 GreedReduction signal: Consider reducing equity exposure by 10-20%
4🔴 Extreme GreedClear reduction: Reduce equity exposure by 20-30%
5🔴🔴 Extreme Greed (Full Warning)Significantly reduce positions or establish hedging positions
统计5项指标中有多少处于预警状态：
预警指标数量情绪评级仓位建议
0😨 恐慌考虑逐步加仓，关注超跌反弹机会
1📊 中性-谨慎维持当前仓位，监控趋势
2📊 中性-乐观可进行小幅调整，注意风险控制
3🟡 贪婪减仓信号：考虑将股票敞口降低10-20%
4🔴 极端贪婪明确减仓：将股票敞口降低20-30%
5🔴🔴 极端贪婪（全面预警）大幅减仓或建立对冲仓位

Output Format

输出格式

Use the following structured template to output the analysis results:
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使用以下结构化模板输出分析结果：
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🎯 US Stock Market Sentiment Monitoring Report

🎯 US Stock Market Sentiment Monitoring Report

Date: [Current Date]
Date: [Current Date]

📊 Indicator Dashboard

📊 Indicator Dashboard

IndicatorCurrent ValueStatusSignal
NAAIM Exposure Index[Value][Normal/Warning][Brief explanation]
Institutional Equity Allocation[Value][Normal/Warning][Brief explanation]
Retail Net Buying[Value][Normal/Warning][Brief explanation]
S&P 500 Forward PE[Value][Normal/Warning][Brief explanation]
Hedge Fund Leverage[Value][Normal/Warning][Brief explanation]
IndicatorCurrent ValueStatusSignal
NAAIM Exposure Index[Value][Normal/Warning][Brief explanation]
Institutional Equity Allocation[Value][Normal/Warning][Brief explanation]
Retail Net Buying[Value][Normal/Warning][Brief explanation]
S&P 500 Forward PE[Value][Normal/Warning][Brief explanation]
Hedge Fund Leverage[Value][Normal/Warning][Brief explanation]

🚦 Comprehensive Rating

🚦 Comprehensive Rating

Sentiment Status: [Extreme Greed / Greed / Neutral / Panic] Warning Indicators: [X] / 5
Sentiment Status: [Extreme Greed / Greed / Neutral / Panic] Warning Indicators: [X] / 5

💼 Position Recommendation

💼 Position Recommendation

[Provide specific recommendations based on the rating]
[Provide specific recommendations based on the rating]

⚠️ Disclaimers

⚠️ Disclaimers

  • This analysis is based on publicly available market data and is for reference only
  • A single indicator does not constitute a trading signal; comprehensive judgment is required
  • Data may have a 1-2 week lag
  • Recommendations should be considered in conjunction with your own risk tolerance
undefined
  • This analysis is based on publicly available market data and is for reference only
  • A single indicator does not constitute a trading signal; comprehensive judgment is required
  • Data may have a 1-2 week lag
  • Recommendations should be considered in conjunction with your own risk tolerance
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Execution Steps

执行步骤

  1. Use web_search to search for the latest data for each of the 5 indicators
  2. If the latest value for an indicator cannot be found, note "Data currently unavailable" and provide the most recent known data
  3. Evaluate each indicator according to the warning criteria
  4. Count the number of warnings to derive the comprehensive rating
  5. Generate the report using the output template
  6. Append primary data source links at the end of the report
  1. 使用web_search搜索5项指标的最新数据
  2. 若某指标无法找到最新值，标注“当前数据不可用”并提供已知的最近数据
  3. 根据预警标准评估每个指标
  4. 统计预警数量以得出综合评级
  5. 使用输出模板生成报告
  6. 在报告末尾附上主要数据来源链接

Important Reminders

重要提醒

  • Some data (such as hedge fund leverage) is not publicly available in real time and may require citing news reports or research publications
  • If reliable data for an indicator cannot be found, honestly state so rather than guessing
  • These indicators are more suitable for medium- to long-term (weekly/monthly) assessments and are not appropriate for intraday trading decisions
  • All recommendations are for reference only and do not constitute investment advice
  • 部分数据（如对冲基金杠杆率）无法实时公开获取，可能需要引用新闻报道或研究出版物
  • 若无法找到某指标的可靠数据，应如实说明而非猜测
  • 这些指标更适合中长线（周/月）评估，不适用于日内交易决策
  • 所有建议仅供参考，不构成投资建议