Tandem Diabetes Care Inc. trailing returns
Tandem Diabetes Care Inc.'s 10-year return is -13.4% a year (CAGR) (-76.4% cumulative). How Tandem Diabetes Care Inc. (TNDM) has performed over the last day, week, month and year, over 5 and 10 years, and since inception, through October 20, 2026 — price return and dividends side by side, with the worst drop inside each window.
Trailing returns by period#
To 2026-10-20. Price return + dividends = total return. Per year (CAGR) for windows of a year or more, with the cumulative total return beneath. Worst drop: the deepest fall in the price from a high inside the window, and when it bottomed.
| Period | Price | DivsDividends | Total | Worst drop |
|---|---|---|---|---|
| 1 day | +0.9% | +0.0% | +0.9% | — |
| 5 days | -0.8% | +0.0% | -0.8% | -3.8%Oct 14 |
| 1 month | -2.1% | +0.0% | -2.1% | -13.6%Sep 24 |
| YTD | -24.8% | +0.0% | -24.8% | -54.6%May 15 |
| 1 year | +6.3% | +0.0% | +6.3% | -54.6%May 2026 |
| 5 years | -33.5% | +0.0% | -33.5%-87.0% | -93.4%Aug 2025 |
| 10 years | -13.4% | +0.0% | -13.4%-76.4% | -96.8%Nov 2017 |
| Since inception (2013) | -17.3% | +0.0% | -17.3%-91.4% | -99.3%Nov 2017 |
Growth of TNDM#
Actual level with dividends reinvested (solid); dashed lines are each window's constant-rate path from start to today.
- 5 years-33.5%/year · -87.0%
- 10 years-13.4%/year · -76.4%
Methodology#
Trailing returns measure from the closest close about N years before the latest close (2026-10-20). Cumulative return is the total change over the window; annualized return is the compound annual growth rate (CAGR), shown for windows of a year or more. Price return is the change in TNDM's closing price; total return reinvests dividends (from its split- and dividend-adjusted closes); the dividends column is the difference between the two. The worst drop is the largest fall in the closing price from a high to a later low inside the window, the way a drawdown is usually quoted. See the year-by-year returns for the calendar breakdown. Past performance does not predict future returns; not investment advice.
FAQ#
- What is Tandem Diabetes Care Inc.'s 10-year return?
- Over the last 10 years, Tandem Diabetes Care Inc. (TNDM) returned about -13.4% a year annualized (-76.4% cumulative total return).
- What is Tandem Diabetes Care Inc.'s return since inception?
- Since 2013, Tandem Diabetes Care Inc. (TNDM) has compounded at about -17.3% a year — -91.4% in total.