The Stock’s Returns and Wealth Index Analysis – US provides a comprehensive, data-driven evaluation of individual U.S. stock performance relative to the S&P 500 benchmark, focusing on daily returns, excess returns, volatility, and long-term wealth creation. This dashboard combines return comparison tables, wealth index curves, performance metrics, and interactive visualizations to help investors understand how a stock behaves across different market conditions. By analyzing risk, consistency, relative strength, and compounding performance, this page supports informed decision-making for investors seeking to assess market sensitivity, alpha generation, and value creation within the U.S. equity market.

All analytics are generated programmatically using Python and the yfinance data source. Updates are performed daily after U.S. market close.

What This Page Provides

✔ Daily stock returns
✔ S&P 500 benchmark returns
✔ Excess returns (stock minus index)
✔ Positive/negative/zero return classification
✔ Wealth index chart
✔ Combined stock vs index performance
✔ Mean returns & volatility
✔ Trading days, positive days count
✔ Risk-adjusted insights
✔ Graphical visualization (auto-generated)

📊 Executive Summary: Daily Returns & Wealth Index Performance

his analysis evaluates the stock’s daily performance relative to the S&P 500 benchmark over the period {{start_date}} to {{end_date}}, covering {{trading_days}} trading days.

Key Findings

  • Mean Daily Return: {{mean_return}}% — indicating {{interpretation}}
  • Volatility: {{volatility}}% — reflects {{volatility_interpretation}}
  • Positive Return Days: {{positive_days}} days
  • Excess Return: {{excess_return}}% — relative performance vs S&P 500
  • Trend Commentary:
    {{auto_summary_like → “The stock underperformed/overperformed the market due to… etc”}}

Interpretation

The daily returns pattern reveals how the stock behaves in different market conditions, whether it tends to outperform during rallies, lag during downturns, or show independent movement.

Daily Returns Analysis

What the Daily Returns Table Shows

This table captures each day’s:

  • Stock return
  • S&P 500 benchmark return
  • Excess return
  • Classification (positive, negative, zero)

How to Use It:

  • Compare stock vs index movement
  • Identify alpha generation
  • Spot volatility spikes
  • Recognize consistent outperforming or underperforming days

💰 Wealth Index Overview

The wealth index tracks how $1 invested at the start of the period evolves over time.

  • Wealth Index > 1 → investment grew
  • Wealth Index < 1 → investment declined
  • Comparing the stock’s wealth index with the S&P 500 shows relative compounding performance.

Why It Matters

Investors use wealth index curves to evaluate long-term trend strength, risk-adjusted returns, and consistency of value creation.

📐 Methodology & Formulae

Daily Return (%) Closet−Closet−1Closet−1×100\frac{\text{Close}_t – \text{Close}_{t-1}}{\text{Close}_{t-1}} \times 100Closet−1​Closet​−Closet−1​​×100

Excess Return (%) \text{Stock Return} – \text{S&P 500 Return}

Mean Return (%)
Average of daily returns

Volatility (%)
Standard deviation of daily returns

Wealth Index Wealth Indext=∏(1+Daily Return)\text{Wealth Index}_t = \prod (1 + \text{Daily Return})Wealth Indext​=∏(1+Daily Return)

📌 Investor Insights

High volatility stocks often outperform but come with greater downside risk.

Persistent positive excess returns may signal strong momentum or fundamental growth.

Negative excess returns indicate underperformance vs the market benchmark.

Wealth index divergence helps identify long-term winners and losers.

Correlation between stock and index returns reveals market sensitivity.

Author/Publisher

Data Source: Yfinance and Prepared by CapitalInsightBD Research Engine
Developed by Md Kollol Hossain
Data updated daily using yfinance.

FAQs

❓ What is excess return?

Excess return measures how much the stock outperformed or underperformed the S&P 500 index on a given day.

❓ Why analyze daily returns?

Daily returns show volatility, risk, and short-term momentum patterns.

❓ What is a wealth index?

It shows how an investment compounds over time, starting from a base value of 1.

❓ How often is the data updated?

Every trading day after the U.S. market closes.

❓ What does volatility indicate?

Higher volatility means larger daily price swings and higher risk.

Important Links:

SP500 Stocks’ mean returns, vols and VaR

SP500 Stocks’ previous peak and draw-down

SP500 Stocks’ Performance Analysis Dashboard

S&P500 stocks’ price closer to 52 Week high

S&P500 stocks’ price closer to 52 Week low

Buy, Hold, and Sell Strategy

Risk in an Uncertain Dynamic World

⚠️ Important Disclaimer

Risk Warning: All investment analysis, market commentary, and trading ideas provided on this website are for educational and informational purposes only. They do not constitute financial advice, investment recommendations, or solicitations to buy or sell any securities.

Stock market investments are subject to market risks. Past performance does not guarantee future results. You should consult with qualified financial advisors and conduct your own research before making any investment decisions. The authors and website owners are not responsible for any financial losses resulting from actions taken based on the information provided.

Remember: Never invest more than you can afford to lose.