// Retrieve market capitalization data for multiple companies at once using Octagon MCP. Use when comparing valuations across peers, screening by market cap, or analyzing a portfolio's composition by company size.
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| name | batch-market-cap |
| description | Retrieve market capitalization data for multiple companies at once using Octagon MCP. Use when comparing valuations across peers, screening by market cap, or analyzing a portfolio's composition by company size. |
Retrieve market capitalization data for multiple companies in a single query using the Octagon MCP server.
Ensure Octagon MCP is configured in your AI agent (Cursor, Claude Desktop, Windsurf, etc.). See references/mcp-setup.md for installation instructions.
Compile the list of ticker symbols you want to analyze (e.g., AAPL, MSFT, GOOGL).
Use the octagon-agent tool with a natural language prompt:
Retrieve market capitalization data for the following companies: <TICKER1>, <TICKER2>, <TICKER3>.
MCP Call Format:
{
"server": "octagon-mcp",
"toolName": "octagon-agent",
"arguments": {
"prompt": "Retrieve market capitalization data for the following companies: AAPL, MSFT, GOOG."
}
}
The agent returns a structured table with market cap data:
| Company | Ticker | Market Cap (USD) | Source |
|---|---|---|---|
| Apple | AAPL | $2.99986 trillion | Octagon Companies Agent |
| Microsoft | MSFT | $3.143 trillion | Companies Market Cap |
| Alphabet | GOOGL | $2.00018 trillion | Octagon Companies Agent |
Data Sources: octagon-companies-agent, octagon-financials-agent, octagon-web-search-agent
See references/interpreting-results.md for guidance on:
Basic Batch Query:
Retrieve market capitalization data for the following companies: AAPL, MSFT, GOOG.
Sector Comparison:
Get market caps for tech giants: AAPL, MSFT, GOOGL, AMZN, META, NVDA.
Portfolio Analysis:
What are the market capitalizations of TSLA, F, GM, and RIVN?
Industry Comparison:
Compare market caps of major banks: JPM, BAC, WFC, C, GS.
Index Components:
Get market caps for the top 10 S&P 500 companies by weight.
International Comparison:
Compare market caps of AAPL, SMSN.IL (Samsung), TSM, and ASML.
| Category | Market Cap Range |
|---|---|
| Mega-cap | >$200 billion |
| Large-cap | $10B - $200B |
| Mid-cap | $2B - $10B |
| Small-cap | $300M - $2B |
| Micro-cap | $50M - $300M |
| Nano-cap | <$50M |
| Category | Typical Traits |
|---|---|
| Mega-cap | Market leaders, global reach, stable |
| Large-cap | Established, diversified, moderate growth |
| Mid-cap | Growth potential, less coverage |
| Small-cap | Higher growth, higher volatility |
| Micro-cap | Speculative, limited liquidity |
| Analysis | Purpose |
|---|---|
| Absolute Size | Rank by market cap |
| Relative Size | Ratio to peers |
| Size Distribution | Concentration analysis |
| Historical Rank | Position changes |
| Comparison | What It Shows |
|---|---|
| vs. Industry Leader | Distance from top |
| vs. Industry Median | Above/below average |
| vs. Sector Total | Market share proxy |
| Scenario | Interpretation |
|---|---|
| Higher market cap, lower revenue | Premium valuation |
| Lower market cap, higher revenue | Discount valuation |
| Similar market cap, different earnings | P/E differential |
| Use | Description |
|---|---|
| Concentration Analysis | Largest holdings by cap |
| Diversification Check | Size mix across holdings |
| Rebalancing | Adjust for cap changes |
| Use | Description |
|---|---|
| Market Leadership | Largest in industry |
| Relative Positioning | Size vs. competitors |
| Growth Comparison | Cap changes over time |
| Use | Description |
|---|---|
| Size Filter | Include/exclude by cap |
| Category Selection | Target specific sizes |
| Index Eligibility | Meets cap requirements |
Market Cap = Share Price × Shares Outstanding
| Factor | Impact |
|---|---|
| Price Change | Direct proportional effect |
| Share Buybacks | Reduces shares, concentrates value |
| New Issuance | Dilutes if price doesn't rise |
| Stock Splits | No effect (price adjusts) |
| Component | Description |
|---|---|
| Basic Shares | Currently outstanding |
| Options | Employee stock options |
| Warrants | Convertible instruments |
| Convertibles | Convertible debt/preferred |
| Factor | Consideration |
|---|---|
| Timing | Real-time vs. delayed data |
| Currency | USD conversion rates |
| Share Count | Basic vs. diluted |
| Updates | Frequency of refresh |
| Issue | Approach |
|---|---|
| Different sources | Note the variance |
| Different dates | Use consistent timing |
| Currency mix | Convert to single currency |
| Missing data | Flag unavailable items |
Use consistent data: Same source/date for fair comparison.
Consider context: Industry norms for market cap.
Track changes: Market cap shifts over time.
Combine with fundamentals: P/E, P/S for valuation context.
Watch for outliers: Investigate unusual sizes.
Global perspective: Different markets, different scales.
| Skill | Combined Use |
|---|---|
| stock-quote | Market cap + current price |
| income-statement | Market cap vs. revenue/earnings |
| financial-metrics-analysis | Valuation multiples |
| analyst-estimates | Market cap vs. price targets |