sector-pe-ratios

name	sector-pe-ratios
description	Retrieve sector P/E ratios using the Octagon Claude plugin. Use when comparing company valuations to sector benchmarks, analyzing sector valuations across exchanges, and understanding market-wide valuation trends.

Sector P/E Ratios

Retrieve price-to-earnings ratios by sector and exchange using the Octagon Claude plugin.

Prerequisites

Ensure the Octagon Claude plugin is installed and configured in Claude Code before invoking this skill.

Workflow

1. Identify Parameters

Determine your query parameters:

• Date: Specific date for the data
• Exchange: NYSE, NASDAQ, etc.
• Sector: Technology, Healthcare, Financials, etc.

2. Execute Query via the Octagon Claude plugin

Use the octagon-agent tool with a natural language prompt:

Retrieve the latest sector P/E ratios for <DATE>, filtered by exchange <EXCHANGE> and sector <SECTOR>.

MCP Call Format:

{
  "server": "octagon-claude-plugin",
  "toolName": "octagon-agent",
  "arguments": {
    "prompt": "Retrieve the latest sector P/E ratios for 2025-02-03, filtered by exchange NASDAQ and sector Technology."
  }
}

3. Expected Output

The agent returns sector P/E data:

Metric	Value
Sector	Technology
Exchange	NASDAQ
P/E Ratio	58.77
Date	2025-02-03

Data Sources: octagon-stock-data-agent

4. Interpret Results

See references/interpreting-results.md for guidance on:

• Comparing company P/E to sector P/E
• Historical sector valuation context
• Cross-sector comparisons
• Exchange-specific analysis

Example Queries

Specific Sector and Exchange:

Retrieve the latest sector P/E ratios for 2025-02-03, filtered by exchange NASDAQ and sector Technology.

All Sectors on Exchange:

Get P/E ratios for all sectors on the NYSE.

Sector Comparison:

Compare P/E ratios for Technology, Healthcare, and Financials sectors.

Historical Trend:

What is the historical P/E trend for the Technology sector on NASDAQ?

Cross-Exchange:

Compare Technology sector P/E ratios on NYSE vs. NASDAQ.

Understanding P/E Ratios

Definition

P/E Ratio = Stock Price / Earnings Per Share

For sectors:

Sector P/E = Weighted Average P/E of all stocks in the sector

Types of P/E

Type	Description
Trailing P/E	Based on past 12 months earnings
Forward P/E	Based on estimated future earnings
GAAP P/E	Using GAAP earnings
Non-GAAP P/E	Using adjusted earnings

Sector Categories

Major Sectors

Sector	Typical P/E Range
Technology	25-60
Healthcare	18-35
Financials	10-18
Consumer Discretionary	15-30
Consumer Staples	18-25
Industrials	15-25
Energy	8-20
Utilities	15-22
Real Estate	30-50
Materials	12-20
Communications	15-25

P/E Characteristics by Sector

Sector	P/E Tendency	Reason
Technology	Higher	Growth expectations
Financials	Lower	Mature, regulated
Utilities	Moderate	Stable, dividend-focused
Healthcare	Variable	Mix of growth/value

Major Exchanges

Exchange Characteristics

Exchange	Focus
NYSE	Large-cap, established
NASDAQ	Tech-heavy, growth
AMEX	Smaller companies, ETFs

Exchange P/E Differences

Factor	NYSE	NASDAQ
Tech Weight	Lower	Higher
Average P/E	Generally lower	Generally higher
Growth vs. Value	More balanced	Growth-tilted

Using Sector P/E for Analysis

Company Valuation Context

Comparison	Interpretation
Company P/E < Sector P/E	Potentially undervalued or issues
Company P/E = Sector P/E	Fairly valued relative to sector
Company P/E > Sector P/E	Premium valuation or overvalued

Premium/Discount Calculation

Premium/Discount = (Company P/E - Sector P/E) / Sector P/E × 100%

Example

• Company P/E: 45
• Sector P/E: 58.77
• Discount: (45 - 58.77) / 58.77 = -23.4% (trading at discount)

Historical Context

Valuation Levels

Sector P/E vs. History	Interpretation
Above 10-year average	Potentially elevated
At 10-year average	Normal valuation
Below 10-year average	Potentially attractive

Cycle Considerations

Phase	Typical Sector P/E Behavior
Early Recovery	Rising from lows
Mid-Cycle	Moderate, stable
Late Cycle	Often elevated
Recession	Compressed or distorted

Cross-Sector Analysis

Relative Value

Comparison	Use
Tech vs. Financials	Growth vs. value
Cyclical vs. Defensive	Risk appetite
High vs. Low P/E	Market expectations

Rotation Signals

Signal	Meaning
Tech P/E rising faster	Growth favored
Value sectors rising	Risk-off rotation
Convergence	Normalization
Divergence	Theme-driven market

Data Considerations

Timing

Factor	Consideration
Earnings season	P/E updates with new earnings
Price movements	Daily fluctuation
Index rebalancing	Composition changes

Calculation Differences

Source	May Differ On
Weighting	Market-cap vs. equal
Earnings	Trailing vs. forward
Constituents	Index composition

Common Use Cases

Stock Valuation

Is AAPL's P/E reasonable compared to the Technology sector?

Sector Selection

Which sectors have the lowest P/E ratios currently?

Market Timing

Are Technology sector valuations elevated compared to history?

Portfolio Analysis

How do my holdings' P/E ratios compare to their sectors?

Analysis Tips

1. Compare apples to apples: Same sector, similar companies.

2. Consider growth: High P/E may be justified by high growth.

3. Check historical range: Current vs. typical levels.

4. Look at earnings quality: P/E only as good as earnings.

5. Cross-reference exchanges: Same sector, different exchanges.

6. Watch for outliers: Negative earnings distort averages.

Integration with Other Skills

Skill	Combined Use
financial-metrics-analysis	Company P/E vs. sector
income-statement	Earnings driving P/E
stock-quote	Current price context
analyst-estimates	Forward P/E calculation