Nasdaq · Common stock
Tandem Diabetes Care (TNDM)
$18.90 +$1.47 (+8.43%)
- Day’s range
- $17.21–$18.98
- Volume
- 4.5M
TNDM price history
TNDM closed at $18.90 on Oct. 26, 2026. Over the past year, its daily close ranged from $12.82 on May 15, 2026 to $28.26 on Feb. 23, 2026.
Data table: TNDM daily closes, the past year
| Date | Close |
|---|---|
| Oct. 26, 2026 | $18.90 |
| Oct. 23, 2026 | $17.43 |
| Oct. 22, 2026 | $17.15 |
| Oct. 21, 2026 | $16.35 |
| Oct. 20, 2026 | $16.52 |
| Oct. 19, 2026 | $16.38 |
| Oct. 16, 2026 | $16.24 |
| Oct. 15, 2026 | $16.52 |
| Oct. 14, 2026 | $16.01 |
| Oct. 13, 2026 | $16.65 |
| Oct. 12, 2026 | $16.45 |
| Oct. 9, 2026 | $16.11 |
| Oct. 8, 2026 | $15.68 |
| Oct. 7, 2026 | $15.84 |
| Oct. 6, 2026 | $16.16 |
| Oct. 5, 2026 | $16.52 |
| Oct. 2, 2026 | $16.50 |
| Oct. 1, 2026 | $16.50 |
| Sept. 30, 2026 | $16.31 |
| Sept. 29, 2026 | $16.57 |
| Sept. 28, 2026 | $16.42 |
| Sept. 25, 2026 | $15.72 |
| Sept. 24, 2026 | $15.22 |
| Sept. 23, 2026 | $16.38 |
| Sept. 22, 2026 | $17.50 |
| Sept. 21, 2026 | $17.62 |
| Sept. 18, 2026 | $16.87 |
| Sept. 17, 2026 | $17.23 |
| Sept. 16, 2026 | $17.53 |
| Sept. 15, 2026 | $16.28 |
| Sept. 14, 2026 | $16.81 |
| Sept. 11, 2026 | $17.11 |
| Sept. 10, 2026 | $18.31 |
| Sept. 9, 2026 | $19.11 |
| Sept. 8, 2026 | $19.88 |
| Sept. 4, 2026 | $19.90 |
| Sept. 3, 2026 | $20.43 |
| Sept. 2, 2026 | $20.56 |
| Sept. 1, 2026 | $21.28 |
| Aug. 31, 2026 | $22.01 |
| Aug. 28, 2026 | $21.43 |
| Aug. 27, 2026 | $21.40 |
| Aug. 26, 2026 | $21.37 |
| Aug. 25, 2026 | $21.58 |
| Aug. 24, 2026 | $22.22 |
| Aug. 21, 2026 | $22.32 |
| Aug. 20, 2026 | $22.57 |
| Aug. 19, 2026 | $23.46 |
| Aug. 18, 2026 | $23.73 |
| Aug. 17, 2026 | $22.26 |
| Aug. 14, 2026 | $22.72 |
| Aug. 13, 2026 | $23.13 |
| Aug. 12, 2026 | $23.44 |
| Aug. 11, 2026 | $23.44 |
| Aug. 10, 2026 | $22.81 |
| Aug. 7, 2026 | $22.38 |
| Aug. 6, 2026 | $18.79 |
| Aug. 5, 2026 | $19.59 |
| Aug. 4, 2026 | $20.20 |
| Aug. 3, 2026 | $20.11 |
| July 31, 2026 | $19.50 |
| July 30, 2026 | $19.01 |
| July 29, 2026 | $18.59 |
| July 28, 2026 | $17.76 |
| July 27, 2026 | $17.17 |
| July 24, 2026 | $17.12 |
| July 23, 2026 | $16.90 |
| July 22, 2026 | $16.91 |
| July 21, 2026 | $17.60 |
| July 20, 2026 | $18.10 |
| July 17, 2026 | $17.08 |
| July 16, 2026 | $16.29 |
| July 15, 2026 | $15.28 |
| July 14, 2026 | $15.54 |
| July 13, 2026 | $16.25 |
| July 10, 2026 | $15.41 |
| July 9, 2026 | $15.37 |
| July 8, 2026 | $15.16 |
| July 7, 2026 | $15.43 |
| July 6, 2026 | $15.42 |
| July 2, 2026 | $15.32 |
| July 1, 2026 | $15.75 |
| June 30, 2026 | $15.09 |
| June 29, 2026 | $15.83 |
| June 26, 2026 | $16.24 |
| June 25, 2026 | $15.76 |
| June 24, 2026 | $15.02 |
| June 23, 2026 | $14.41 |
| June 22, 2026 | $14.34 |
| June 18, 2026 | $15.30 |
| June 17, 2026 | $15.40 |
| June 16, 2026 | $16.69 |
| June 15, 2026 | $16.76 |
| June 12, 2026 | $16.60 |
| June 11, 2026 | $15.80 |
| June 10, 2026 | $16.23 |
| June 9, 2026 | $17.61 |
| June 8, 2026 | $18.47 |
| June 5, 2026 | $19.34 |
| June 4, 2026 | $19.45 |
| June 3, 2026 | $18.03 |
| June 2, 2026 | $18.60 |
| June 1, 2026 | $19.12 |
| May 29, 2026 | $17.20 |
| May 28, 2026 | $16.72 |
| May 27, 2026 | $14.82 |
| May 26, 2026 | $14.54 |
| May 22, 2026 | $14.97 |
| May 21, 2026 | $15.76 |
| May 20, 2026 | $15.04 |
| May 19, 2026 | $13.86 |
| May 18, 2026 | $13.53 |
| May 15, 2026 | $12.82 |
| May 14, 2026 | $14.15 |
| May 13, 2026 | $14.11 |
| May 12, 2026 | $14.69 |
| May 11, 2026 | $14.77 |
| May 8, 2026 | $15.48 |
| May 7, 2026 | $18.47 |
| May 6, 2026 | $18.03 |
| May 5, 2026 | $19.42 |
| May 4, 2026 | $19.87 |
| May 1, 2026 | $19.42 |
| April 30, 2026 | $19.52 |
| April 29, 2026 | $18.16 |
| April 28, 2026 | $18.63 |
| April 27, 2026 | $19.82 |
| April 24, 2026 | $20.36 |
| April 23, 2026 | $20.68 |
| April 22, 2026 | $20.78 |
| April 21, 2026 | $20.03 |
| April 20, 2026 | $21.24 |
| April 17, 2026 | $20.61 |
| April 16, 2026 | $20.09 |
| April 15, 2026 | $20.66 |
| April 14, 2026 | $21.11 |
| April 13, 2026 | $20.10 |
| April 10, 2026 | $19.18 |
| April 9, 2026 | $19.68 |
| April 8, 2026 | $19.35 |
| April 7, 2026 | $18.28 |
| April 6, 2026 | $19.17 |
| April 2, 2026 | $18.61 |
| April 1, 2026 | $18.81 |
| March 31, 2026 | $19.17 |
| March 30, 2026 | $19.59 |
| March 27, 2026 | $21.00 |
| March 26, 2026 | $23.32 |
| March 25, 2026 | $24.26 |
| March 24, 2026 | $24.51 |
| March 23, 2026 | $25.09 |
| March 20, 2026 | $24.82 |
| March 19, 2026 | $24.63 |
| March 18, 2026 | $23.85 |
| March 17, 2026 | $23.91 |
| March 16, 2026 | $21.91 |
| March 13, 2026 | $21.59 |
| March 12, 2026 | $20.88 |
| March 11, 2026 | $22.16 |
| March 10, 2026 | $21.88 |
| March 9, 2026 | $20.88 |
| March 6, 2026 | $21.14 |
| March 5, 2026 | $22.63 |
| March 4, 2026 | $23.41 |
| March 3, 2026 | $23.74 |
| March 2, 2026 | $25.23 |
| Feb. 27, 2026 | $25.30 |
| Feb. 26, 2026 | $25.79 |
| Feb. 25, 2026 | $26.01 |
| Feb. 24, 2026 | $26.90 |
| Feb. 23, 2026 | $28.26 |
| Feb. 20, 2026 | $24.57 |
| Feb. 19, 2026 | $18.52 |
| Feb. 18, 2026 | $18.94 |
| Feb. 17, 2026 | $18.84 |
| Feb. 13, 2026 | $18.95 |
| Feb. 12, 2026 | $18.69 |
| Feb. 11, 2026 | $19.66 |
| Feb. 10, 2026 | $19.54 |
| Feb. 9, 2026 | $18.89 |
| Feb. 6, 2026 | $19.17 |
| Feb. 5, 2026 | $18.94 |
| Feb. 4, 2026 | $18.99 |
| Feb. 3, 2026 | $19.44 |
| Feb. 2, 2026 | $20.09 |
| Jan. 30, 2026 | $19.89 |
| Jan. 29, 2026 | $19.76 |
| Jan. 28, 2026 | $19.11 |
| Jan. 27, 2026 | $20.15 |
| Jan. 26, 2026 | $20.20 |
| Jan. 23, 2026 | $19.90 |
| Jan. 22, 2026 | $20.59 |
| Jan. 21, 2026 | $20.74 |
| Jan. 20, 2026 | $20.49 |
| Jan. 16, 2026 | $20.16 |
| Jan. 15, 2026 | $21.07 |
| Jan. 14, 2026 | $20.87 |
| Jan. 13, 2026 | $20.90 |
| Jan. 12, 2026 | $21.35 |
| Jan. 9, 2026 | $21.70 |
| Jan. 8, 2026 | $22.50 |
| Jan. 7, 2026 | $22.71 |
| Jan. 6, 2026 | $23.54 |
| Jan. 5, 2026 | $23.15 |
| Jan. 2, 2026 | $21.55 |
| Dec. 31, 2025 | $21.98 |
| Dec. 30, 2025 | $22.51 |
| Dec. 29, 2025 | $22.33 |
| Dec. 26, 2025 | $22.35 |
| Dec. 24, 2025 | $22.48 |
| Dec. 23, 2025 | $22.62 |
| Dec. 22, 2025 | $23.26 |
| Dec. 19, 2025 | $22.07 |
| Dec. 18, 2025 | $21.80 |
| Dec. 17, 2025 | $22.42 |
| Dec. 16, 2025 | $22.60 |
| Dec. 15, 2025 | $22.11 |
| Dec. 12, 2025 | $21.39 |
| Dec. 11, 2025 | $20.97 |
| Dec. 10, 2025 | $21.45 |
| Dec. 9, 2025 | $20.44 |
| Dec. 8, 2025 | $20.74 |
| Dec. 5, 2025 | $20.92 |
| Dec. 4, 2025 | $20.71 |
| Dec. 3, 2025 | $19.93 |
| Dec. 2, 2025 | $19.62 |
| Dec. 1, 2025 | $20.51 |
| Nov. 28, 2025 | $21.01 |
| Nov. 26, 2025 | $20.73 |
| Nov. 25, 2025 | $21.84 |
| Nov. 24, 2025 | $21.47 |
| Nov. 21, 2025 | $21.28 |
| Nov. 20, 2025 | $19.50 |
| Nov. 19, 2025 | $18.74 |
| Nov. 18, 2025 | $18.71 |
| Nov. 17, 2025 | $18.34 |
| Nov. 14, 2025 | $18.61 |
| Nov. 13, 2025 | $17.53 |
| Nov. 12, 2025 | $18.06 |
| Nov. 11, 2025 | $17.52 |
| Nov. 10, 2025 | $16.37 |
| Nov. 7, 2025 | $16.26 |
| Nov. 6, 2025 | $13.33 |
| Nov. 5, 2025 | $14.67 |
| Nov. 4, 2025 | $15.21 |
| Nov. 3, 2025 | $14.36 |
| Oct. 31, 2025 | $14.00 |
| Oct. 30, 2025 | $14.59 |
| Oct. 29, 2025 | $15.15 |
| Oct. 28, 2025 | $15.10 |
| Oct. 27, 2025 | $14.94 |
Key figures
- 52-week range
- $12.82–$28.26Low May 15, 2026; high Feb. 23, 2026
- Average daily volume
- 2.1MPast 3 months
- Market value
- $1.32B
- Dividend yield
- —
- From 52-week high
- −33.12%
Price change
- 1 month
- +20.23%
- 3 months
- +10.40%
- Year to date
- −14.01%
- 1 year
- +26.42%
$1,000 a year ago
$1,000 put into TNDM at the close on Oct. 24, 2025 would be worth $1,264.
Price only, dividends not included.
What Wall Street says about TNDM
In the past 90 days, Wall Street firms published 6 rating or price-target actions on TNDM: 2 new ratings, 1 raised price target and 3 lowered price targets.
| Action | Rating | |||
|---|---|---|---|---|
| Barclays | Initiates coverage | Equal-weight | $18 | |
| Citigroup | Cuts target | Neutral | $24 to $20 | |
| Truist Securities | Cuts target | Buy | $31 to $28 | |
| William Blair | Initiates coverage | Outperform | — | |
| Citigroup | Raises target | Neutral | $17 to $21 | |
| RBC Capital | Cuts target | Outperform | $30 to $26 |
Ratings and price targets are the firms’ own opinions, reported as published.
Not investment advice.
About Tandem Diabetes Care, Inc.
Tandem Diabetes designs, manufactures, and markets durable insulin pumps for individuals with diabetes. The firm first entered this market in 2012 and has since introduced multiple generations of pumps leading to its current t:slim X2 device. The firm recently launched its smaller Mobi pump and continues to work on the Sigi tubeless patch pump. Tandem is also developing a fully closed-loop algorithm for its pumps. Nearly three-quarters of total revenue is derived from the US, with the remainder primarily from other developed nations. The pumps themselves generate just over half of total sales, and another one-third is from disposable infusion sets that need to be changed over every 3 to 7 days.
- Headquarters
- San Diego, Calif.
- Employees
- 2,500
- Listed
- Nov. 14, 2013
- Sector
- Health care
- Industry
- Surgical & medical instruments & apparatus
In WallStreetDigest editions
No WallStreetDigest article about TNDM is on the site yet.