# CAPM Calculator MCP for AI Agents MCP

> The CAPM Calculator MCP determines an asset's required rate of return using the Capital Asset Pricing Model. It helps investors assess systematic risk by computing expected returns based on Beta, risk-free rates, and regional Equity Risk Premiums (ERP). Use it to measure Alpha and quickly determine if any investment is genuinely attractive.

## Overview
- **Category:** finance
- **Price:** Free
- **Tags:** capm, finance, beta, alpha, investment-analysis

## Description

Need a quick, reliable way to figure out if an asset justifies its risk? This MCP handles the math behind required returns using the Capital Asset Pricing Model. You feed your agent basic inputs—like Beta or regional rates—and it computes what the expected return *should* be, factoring in everything from the global market to specific regions like Europe or Brazil. The system pulls standardized risk compensation values for major markets so you don't have to look them up manually. Once you know the expectation, your agent can then compare that figure against an asset’s actual performance, calculating Alpha and telling you if it’s genuinely attractive or just mediocre. Connecting this MCP through Vinkius gives any compatible AI client immediate access to professional-grade investment analysis, letting you spend time making decisions instead of running calculations.

## Prompt Examples

**Prompt:** 
```
What is the expected return for an asset with a beta of 1.2, a risk-free rate of 3%, in the USA market?
```

**Response:** 
```
**CAPM Expected Return Calculation**

Based on your inputs:
*   Beta: 1.2
*   Risk-Free Rate (RFR): 3.0%
*   USA Equity Risk Premium (ERP): 6.9%

The calculated expected return is **10.8%**.
```

**Prompt:** 
```
If an asset in Brazil has a beta of 0.8 and the risk-free rate is 5%, what's its expected return?
```

**Response:** 
```
**Expected Return Analysis (Brazil)**

We used the standardized regional data for Brazil to compute the required rate of return.

| Metric | Value |
| :--- | :--- |
| Beta | 0.8 |
| RFR | 5.0% |
| Brazil ERP | 7.2% |
| **Expected Return** | **9.76%** |

The asset needs to deliver at least 9.76% to meet market expectations.
```

**Prompt:** 
```
An asset has an actual return of 8% and the expected return was calculated at 7.5%. Is this investment good?
```

**Response:** 
```
**Performance Analysis Results**

*   Actual Return: 8.0%
*   Expected Return: 7.5%
*   Calculated Alpha: **+0.5%**

✅ The asset is considered **Attractive**. It outperformed its expected return by a positive margin of 0.5%, suggesting strong management or market conditions.
```

## Capabilities

### Calculate Expected Returns
Computes the theoretical required rate of return for an asset using Beta, a risk-free rate, and the regional Equity Risk Premium.

### Fetch Regional ERP Data
Retrieves standardized Equity Risk Premium values specific to major financial regions (USA, Europe, Brazil).

### Analyze Asset Performance
Calculates Alpha by comparing an asset's actual return against its expected return to determine investment attractiveness.

## Use Cases

### Evaluating a Cross-Border Investment
A PM is considering an asset in Brazil. They ask their agent to pull the regional risk premium using `get_regional_erp` and then calculate the expected return for that specific market, ensuring compliance with local benchmarks.

### Spotting Underperforming Stocks
An analyst wants to know if a stock is truly valuable. They provide the actual returns and let the agent use `analyze_asset_performance` against the expected return to see if the Alpha suggests an immediate buy or sell.

### Initial Due Diligence Check
When reviewing a new asset, the user provides Beta and RFR. The agent uses `calculate_expected_return` to instantly establish the minimum acceptable return threshold for the investment.

## Benefits

- Stop guessing about risk. Use the `calculate_expected_return` tool to get a precise, model-backed expected return rate for any asset.
- Quickly compare assets without manual work. The system uses `analyze_asset_performance` to calculate Alpha and instantly label an investment as 'Attractive' or 'Unobstructive'.
- Avoid data gaps. With `get_regional_erp`, you can pull standardized risk compensation values for USA, Europe, or Brazil markets with a single prompt.
- Cut down analysis time. You move from spending hours cross-referencing regional ERPs to getting the required rate of return in seconds.
- Focus on strategy, not math. By automating the calculation and comparison steps, you free up time for high-level portfolio decisions.

## How It Works

The bottom line is: Instead of running multiple spreadsheet formulas manually, you prompt your agent with a single request, and it executes the entire multi-step financial calculation automatically.

1. Start by providing your agent with the necessary inputs, such as the asset’s Beta and the desired regional Equity Risk Premium.
2. The MCP first uses a tool to calculate the expected return, giving you the baseline required rate of return for that specific market.
3. Next, give it the asset's actual historical performance; the system then analyzes this against the expectation to report Alpha and its attractiveness status.

## Frequently Asked Questions

**How does the CAPM Calculator MCP determine if an investment is genuinely attractive?**
The MCP calculates Alpha by comparing the asset's actual returns against its expected return. If the result is positive, the tool classifies it as 'Attractive,' meaning it outperformed what was predicted.

**Do I need to manually find the risk premiums for different countries?**
No. The CAPM Calculator MCP handles that. It uses a dedicated tool to fetch standardized Equity Risk Premium values automatically for major markets like Europe, Brazil, and the USA.

**What inputs are absolutely required when I use the CAPM Calculator MCP?**
You must provide the asset's Beta value along with a risk-free rate. The system then uses that data to calculate the theoretical expected return, which is the foundation of all subsequent analysis.

**Can I use this MCP to compare multiple assets in different regions?**
Yes. You can run the calculation repeatedly for various assets and regions. This allows you to build a comparative matrix, seeing exactly how each market's specific ERP affects the required return.

**Is the expected return calculated by the CAPM Calculator MCP based on historical data or theory?**
It is based on theoretical financial models using systematic risk. It tells you what the rate of return *should* be, according to established market principles.