Historical annual and monthly returns for TransDigm Group (TDG).
For TransDigm Group (TDG), the strongest completed calendar year was 2019, when the stock returned 84.3%, while its weakest was 2008, with a return of -25.7%. Across the 19 completed calendar years from 2007 through 2025, its average annual return was 32.5% and its compounded annual return was 29.5%. TDG posted positive returns in 18 of those 19 years (95%). In 2025, the latest completed year, it returned 12.2%. In 2026 year to date, TDG has returned -16.1%.
Returns are calculated from the adjusted daily closing prices for TransDigm Group (TDG). 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.
