About StockSince

Last updated: October 2026

StockSince tracks how long it has been since each US-listed stock closed at its all-time high, and how far it has fallen since.

What the site shows

• For each active ticker: the days since its highest close, how far the latest close is below it, and the gain needed to get back.
• Rankings of the stocks longest and shortest without a new high, and those furthest below theirs.
• Comparisons of two stocks over the same period.
• What an amount bought at the high, or at the start of a chosen period, would be worth at the end of it.

How the figures are calculated

• Split-adjusted closes. Daily closing prices are adjusted for stock splits, so a split doesn’t look like a crash or a jump.
• Price return only. Dividends are not included. For stocks that pay large dividends, the total return to a holder is higher than shown.
• All-time high is the highest split-adjusted daily close, not the intraday high. Days since the high are calendar days.
• Comparisons use only the trading days both stocks have prices for, and report the gap between their returns in percentage points.
• Annualized returns are shown only for periods of a year or more.

Data sources and quality

End-of-day prices and stock splits come from a third-party market data provider and are updated daily after the US market closes. Prices are closes, not live quotes.

For a few tickers, the provider’s earliest history is inconsistent with the rest. Those early sessions are excluded from charts, highs and comparisons, so the history shown for them starts later.

Editorial policy

StockSince is an automated data site. Its pages are generated from source data by fixed calculations. It publishes no ratings, price targets, buy or sell calls, or personalized recommendations.

Who operates this site

StockSince is an independent financial data website. It is not a broker, dealer, investment adviser, tax adviser or exchange, and it does not accept trades or hold assets.

Limitations

• Data may contain errors, gaps or delays. Check figures with your broker or another primary source before relying on them.
• Actual returns also depend on dividends, fees, taxes and the prices you trade at, none of which are modelled here.
• Past performance does not predict future results.

Contact

Questions, or a figure that looks wrong? Email [email protected] with the ticker, the date and what you saw.