Historical Stock Prices
NYSENASDAQView historical daily open, high, low, and close prices for any US stock.
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Why Statistical Analysis Matters in Trading
- Mean (Average Price) — Identifies where a stock "should" trade. Price consistently above mean may signal overbought conditions; below may signal value opportunity.
- Standard Deviation — Quantifies volatility. Higher std dev = wider price swings = higher option premiums, making it a core input for options pricing and strategy selection.
- Bollinger Bands (±2σ) — ~95% of prices fall within these bands. Stocks near the upper band may be overbought; near the lower band may be oversold — ideal for timing entries on cash-secured puts or covered calls.
- Mean Reversion — Prices tend to return to their average over time. Traders use this to sell options when a stock is extended, collecting premium while waiting for the reversion.
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Financial Disclaimer
The information provided is for informational and educational purposes only and does not constitute financial advice, investment advice, or a recommendation to buy or sell any securities. All data is for illustrative purposes and should not be relied upon for investment decisions. Consult a qualified financial professional before making any financial decisions.