Historical annual and monthly returns for Amphenol (APH).
For Amphenol (APH), the strongest completed calendar year was 2025, when the stock returned 96.1%, while its weakest was 2008, with a return of -48.2%. Across the 26 completed calendar years from 2000 through 2025, its average annual return was 25.6% and its compounded annual return was 21.3%. APH posted positive returns in 20 of those 26 years (77%). In 2025, the latest completed year, it returned 96.1%. In 2026 year to date, APH has returned 25.1%.
Returns are calculated from the adjusted daily closing prices for Amphenol (APH). Annual returns measure the percentage change between the final available trading prices of consecutive calendar years. Monthly returns use the corresponding month-end observations. Adjusted prices account for stock splits and distributions when supplied by the market-data provider. Results are nominal and are not adjusted for inflation.
