Tandem Diabetes Care, Inc. (TNDM) NASDAQ

14.69

-0.08(-0.54%)

Updated at May 12 04:00PM

Currency In USD

TNDM Historical Return

If you invested $1000 in Tandem Diabetes Care, Inc. (TNDM) 10 years ago, it would be worth $217.95 as of May 13, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $190.78, while $1000 invested 1 year ago would be worth $635.11. This corresponds to total returns of -78.2%, -80.92%, -36.49%, respectively, with annualized returns of -14.12%, -28.19%, -36.49%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

TNDM Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
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
March 25, 2026	24.76	24.26	24.26	25.05	23.79	1.21M
March 24, 2026	24.65	24.51	24.51	24.89	24.03	2.02M
March 23, 2026	25.87	25.09	25.09	26.38	24.96	2.17M
March 20, 2026	24.69	24.82	24.82	25.01	23.91	2.4M
March 19, 2026	25.04	24.63	24.63	25.43	24.18	2.82M
March 18, 2026	23.91	23.85	23.85	24.45	23.56	1.65M
March 17, 2026	23.16	23.91	23.91	24.79	23.03	3.61M
March 16, 2026	21.79	21.91	21.91	22.34	21.42	1.36M
March 13, 2026	21.03	21.59	21.59	21.85	20.91	2.05M
March 12, 2026	21.51	20.88	20.88	22.06	20.69	1.42M
March 11, 2026	21.57	22.16	22.16	22.54	21.15	1.93M
March 10, 2026	21.24	21.88	21.88	22.11	20.43	1.53M
March 09, 2026	20.6	20.88	20.88	21.28	20.17	1.92M
March 06, 2026	22.12	21.14	21.14	22.59	21.02	1.8M
March 05, 2026	22.81	22.63	22.63	23.22	22.31	1.55M
March 04, 2026	23.92	23.41	23.41	24.48	23.38	1.75M
March 03, 2026	24.32	23.74	23.74	24.64	23.62	1.7M
March 02, 2026	24.88	25.23	25.23	25.39	24.32	1.55M
February 27, 2026	26.1	25.3	25.3	26.1	24.93	1.82M
February 26, 2026	25.98	25.79	25.79	26.88	25.57	2.83M
February 25, 2026	26.92	26.01	26.01	27.05	25.62	7.44M
February 24, 2026	25.71	26.9	26.9	29.65	25.7	6.67M
February 23, 2026	25.59	28.26	28.26	28.9	24.77	6.65M
February 20, 2026	22.75	24.57	24.57	26.21	22	12.7M
February 19, 2026	18.95	18.52	18.52	19.09	17.71	1.99M
February 18, 2026	19.14	18.94	18.94	19.26	18.45	1.52M
February 17, 2026	19	18.84	18.84	19.56	18.68	1.24M