Tandem Diabetes Care, Inc. (TNDM) NASDAQ
Currency In USD
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Currency In USD
If you invested $1000 in Tandem Diabetes Care, Inc. (TNDM) 10 years ago, it would be worth $200 as of June 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $150.58, while $1000 invested 1 year ago would be worth $709.2. This corresponds to total returns of -80%, -84.94%, -29.08%, respectively, with annualized returns of -14.86%, -31.51%, -29.08%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| June 22, 2026 | 15.17 | 14.34 | 14.34 | 15.34 | 14.32 | 2.2M |
| June 18, 2026 | 15.68 | 15.3 | 15.3 | 15.86 | 15.08 | 2.51M |
| June 17, 2026 | 16.44 | 15.4 | 15.4 | 17.07 | 15.33 | 2.1M |
| June 16, 2026 | 16.95 | 16.69 | 16.69 | 17.2 | 16.6 | 1.89M |
| June 15, 2026 | 16.92 | 16.76 | 16.76 | 17.01 | 16.3 | 1.64M |
| June 12, 2026 | 15.56 | 16.6 | 16.6 | 16.64 | 15.51 | 1.81M |
| June 11, 2026 | 15.96 | 15.8 | 15.8 | 16.06 | 15.38 | 3.63M |
| June 10, 2026 | 17.5 | 16.23 | 16.23 | 17.69 | 15.93 | 2.87M |
| June 09, 2026 | 18.64 | 17.61 | 17.61 | 18.83 | 17.5 | 2.57M |
| June 08, 2026 | 19.53 | 18.47 | 18.47 | 20.18 | 18.44 | 2.99M |
| June 05, 2026 | 19.53 | 19.34 | 19.34 | 20.62 | 19.31 | 2.3M |
| June 04, 2026 | 18.52 | 19.45 | 19.45 | 19.78 | 18.32 | 2.41M |
| June 03, 2026 | 18.6 | 18.03 | 18.03 | 18.8 | 17.64 | 2.01M |
| June 02, 2026 | 18.83 | 18.6 | 18.6 | 19.13 | 18.33 | 1.43M |
| June 01, 2026 | 19.47 | 19.12 | 19.12 | 20.04 | 17.72 | 5.61M |
| May 29, 2026 | 16.83 | 17.2 | 17.2 | 18.28 | 16.8 | 3.01M |
| May 28, 2026 | 14.59 | 16.72 | 16.72 | 16.75 | 14.42 | 4.02M |
| May 27, 2026 | 14.69 | 14.82 | 14.82 | 14.99 | 14.11 | 2.76M |
| May 26, 2026 | 15.07 | 14.54 | 14.54 | 15.35 | 14.53 | 2.85M |
| May 22, 2026 | 15.74 | 14.97 | 14.97 | 15.92 | 14.94 | 1.99M |
| May 21, 2026 | 14.94 | 15.76 | 15.76 | 15.86 | 14.8 | 2.78M |
| May 20, 2026 | 13.89 | 15.04 | 15.04 | 15.1 | 13.61 | 1.71M |
| May 19, 2026 | 13.53 | 13.86 | 13.86 | 14.03 | 13.47 | 1.99M |
| May 18, 2026 | 13.15 | 13.53 | 13.53 | 13.67 | 12.83 | 4.71M |
| May 15, 2026 | 13.65 | 12.82 | 12.82 | 13.65 | 12.26 | 6.1M |
| May 14, 2026 | 14.17 | 14.15 | 14.15 | 14.69 | 13.96 | 2.77M |
| May 13, 2026 | 14.51 | 14.11 | 14.11 | 14.83 | 13.95 | 2.64M |
| May 12, 2026 | 14.74 | 14.69 | 14.69 | 15.34 | 14.42 | 2.37M |
| May 11, 2026 | 15.16 | 14.77 | 14.77 | 15.35 | 14.18 | 3.36M |
| May 08, 2026 | 20 | 15.48 | 15.48 | 20.03 | 15.44 | 7.53M |
| May 07, 2026 | 18.3 | 18.47 | 18.47 | 18.9 | 17.75 | 2.54M |
| May 06, 2026 | 19.48 | 18.03 | 18.03 | 19.49 | 17.93 | 3.09M |
| May 05, 2026 | 19.9 | 19.42 | 19.42 | 19.98 | 18.91 | 1.62M |
| May 04, 2026 | 19.62 | 19.87 | 19.87 | 20.44 | 19.15 | 2.07M |
| May 01, 2026 | 19.63 | 19.42 | 19.42 | 20.02 | 19.18 | 1.62M |
| April 30, 2026 | 18.32 | 19.52 | 19.52 | 19.67 | 18.25 | 2.22M |
| April 29, 2026 | 18.47 | 18.16 | 18.16 | 18.47 | 17.59 | 2.17M |
| April 28, 2026 | 19.86 | 18.63 | 18.63 | 20.08 | 18.58 | 1.46M |
| April 27, 2026 | 20.2 | 19.82 | 19.82 | 20.49 | 19.69 | 1.19M |
| April 24, 2026 | 20.88 | 20.36 | 20.36 | 21.11 | 20.15 | 882,958 |
| April 23, 2026 | 20.83 | 20.68 | 20.68 | 21.62 | 20.1 | 2.21M |
| April 22, 2026 | 20.29 | 20.78 | 20.78 | 20.98 | 20 | 1.3M |
| April 21, 2026 | 21.35 | 20.03 | 20.03 | 21.54 | 19.99 | 1.34M |
| April 20, 2026 | 20.88 | 21.24 | 21.24 | 21.86 | 20.79 | 1.72M |
| April 17, 2026 | 20.68 | 20.61 | 20.61 | 21.32 | 20.36 | 1.98M |
| April 16, 2026 | 20.6 | 20.09 | 20.09 | 21.05 | 20.01 | 1.19M |
| April 15, 2026 | 21.47 | 20.66 | 20.66 | 21.96 | 20.4 | 1.34M |
| April 14, 2026 | 20.33 | 21.11 | 21.11 | 21.12 | 20.05 | 2.58M |
| April 13, 2026 | 18.91 | 20.1 | 20.1 | 20.3 | 18.91 | 1.11M |
| April 10, 2026 | 19.71 | 19.18 | 19.18 | 19.82 | 18.92 | 924,891 |
| April 09, 2026 | 19.34 | 19.68 | 19.68 | 19.84 | 18.91 | 982,518 |
| April 08, 2026 | 19.32 | 19.35 | 19.35 | 19.77 | 18.79 | 1.92M |
| April 07, 2026 | 19.19 | 18.28 | 18.28 | 19.71 | 18.11 | 1.73M |
| April 06, 2026 | 18.46 | 19.17 | 19.17 | 19.34 | 18.35 | 1.57M |
| April 02, 2026 | 18.25 | 18.61 | 18.61 | 19.1 | 18.08 | 1.01M |
| April 01, 2026 | 19.22 | 18.81 | 18.81 | 19.47 | 18.29 | 1.86M |
| March 31, 2026 | 19.62 | 19.17 | 19.17 | 20.3 | 18.89 | 1.82M |
| March 30, 2026 | 21.2 | 19.59 | 19.59 | 21.35 | 19.54 | 2.05M |
| March 27, 2026 | 22.82 | 21 | 21 | 22.97 | 20.94 | 2.39M |
| March 26, 2026 | 23.81 | 23.32 | 23.32 | 24.3 | 22.98 | 1.81M |