Daily trading records

Tandem Diabetes Care Historical Stock Prices by Trading Day

Direct answer

Review 60 recent trading days for Tandem Diabetes Care.

The verified trading-day record runs from June 25, 2026 through September 18, 2026.
Select a date to review its open, high, low, close, volume and change from the prior session.
Daily aggregate prices are provided by Polygon.

Get free Tandem Diabetes Care email updates.

Bullstory sends one daily email when new analysis or important company news is available.

Review Tandem Diabetes Care's price trend and period performance.

The chart connects verified session closes from June 24, 2026 through September 18, 2026.

Closing-price trend by trading session

Period performance is calculated from verified trading sessions.

5-session performance

-1.14%

From the September 11, 2026 close of $17.11 to $16.915 on September 18, 2026.

20-session performance

-25.06%

From the August 20, 2026 close of $22.57 to $16.915 on September 18, 2026.

60-session performance

+12.62%

From the June 24, 2026 close of $15.02 to $16.915 on September 18, 2026.

Tandem Diabetes Care Historical prices
Historical pricesOpenHighLowCloseVolumePrior-close change
$17.13$17.15$16.77$16.915695,498-$0.315 (-1.83%)
$17.72$17.72$16.93$17.232,218,241-$0.30 (-1.71%)
$16.305$18.00$16.12$17.533,866,508+$1.25 (+7.68%)
$16.66$17.005$16.25$16.282,379,782-$0.53 (-3.15%)
$17.18$17.62$16.60$16.812,201,457-$0.30 (-1.75%)
$18.48$18.67$17.065$17.111,789,050-$1.20 (-6.55%)
$18.77$19.05$18.095$18.311,589,504-$0.80 (-4.19%)
$19.67$19.73$19.035$19.111,569,597-$0.77 (-3.87%)
$19.51$20.62$19.34$19.881,637,231-$0.02 (-0.10%)
$20.04$20.36$19.49$19.901,363,548-$0.53 (-2.59%)
$20.71$20.91$20.03$20.431,593,478-$0.13 (-0.63%)
$21.25$21.735$20.54$20.561,136,333-$0.72 (-3.38%)
$21.98$22.2105$21.08$21.28919,278-$0.73 (-3.32%)
$21.00$22.295$20.56$22.011,657,006+$0.58 (+2.71%)
$21.40$21.77$21.22$21.43921,994+$0.03 (+0.14%)
$21.20$21.94$21.02$21.401,031,168+$0.03 (+0.14%)
$21.24$21.585$21.02$21.371,117,638-$0.21 (-0.97%)
$22.16$22.16$21.30$21.581,186,486-$0.64 (-2.88%)
$22.40$23.00$22.06$22.221,064,351-$0.10 (-0.45%)
$23.25$23.25$22.06$22.321,636,305-$0.25 (-1.11%)
$23.11$23.53$22.22$22.571,821,160-$0.89 (-3.79%)
$24.20$24.81$23.42$23.461,655,414-$0.27 (-1.14%)
$22.16$24.10$22.097$23.732,631,738+$1.475 (+6.63%)
$22.50$22.94$21.70$22.2551,384,285-$0.465 (-2.05%)
$22.92$22.92$22.355$22.721,686,886-$0.41 (-1.77%)
$23.33$23.555$22.88$23.131,420,046-$0.31 (-1.32%)
$23.16$23.605$22.71$23.441,700,460$0.00 (0.00%)
$22.615$23.80$22.559$23.441,784,948+$0.63 (+2.76%)
$22.03$23.03$21.825$22.812,320,684+$0.43 (+1.92%)
$17.39$22.65$17.07$22.385,435,938+$3.59 (+19.11%)
$19.30$19.545$18.495$18.793,796,505-$0.80 (-4.08%)
$19.25$19.86$19.00$19.593,470,810-$0.61 (-3.02%)
$19.95$20.81$19.605$20.202,822,119+$0.09 (+0.45%)
$19.82$20.50$19.725$20.113,327,932+$0.61 (+3.13%)
$19.10$19.66$18.56$19.501,833,989+$0.49 (+2.58%)
$18.31$19.04$18.0273$19.012,056,754+$0.42 (+2.26%)
$17.79$18.745$17.424$18.591,910,949+$0.83 (+4.67%)
$17.17$18.04$17.17$17.761,860,966+$0.59 (+3.44%)
$17.13$17.27$16.34$17.171,577,418+$0.05 (+0.29%)
$17.09$17.26$16.49$17.121,147,965+$0.22 (+1.30%)
$16.93$17.09$16.14$16.901,160,033-$0.01 (-0.06%)
$17.55$17.55$16.78$16.911,533,794-$0.69 (-3.92%)
$17.62$18.23$17.23$17.601,733,995-$0.50 (-2.76%)
$16.95$18.16$16.70$18.101,893,879+$1.02 (+5.97%)
$16.25$17.09$15.91$17.082,100,446+$0.79 (+4.85%)
$15.37$16.72$15.34$16.291,983,101+$1.01 (+6.61%)
$15.22$15.90$15.08$15.281,381,875-$0.26 (-1.67%)
$15.75$16.0339$14.575$15.541,864,715-$0.71 (-4.37%)
$15.50$16.505$15.40$16.251,897,007+$0.84 (+5.45%)
$15.46$15.50$15.00$15.411,321,354+$0.04 (+0.26%)
$15.24$15.675$14.95$15.371,398,585+$0.21 (+1.39%)
$15.17$15.45$14.8929$15.161,871,095-$0.27 (-1.75%)
$15.65$15.86$14.90$15.431,207,633+$0.01 (+0.06%)
$15.20$15.585$14.80$15.421,322,418+$0.10 (+0.65%)
$15.94$16.165$15.22$15.321,627,576-$0.43 (-2.73%)
$15.10$15.765$15.10$15.751,312,980+$0.66 (+4.37%)
$15.965$15.965$15.05$15.091,145,897-$0.74 (-4.67%)
$16.24$16.435$15.58$15.831,467,177-$0.41 (-2.52%)
$15.69$16.50$15.465$16.243,369,115+$0.48 (+3.05%)
$15.12$15.9833$15.0101$15.762,304,856+$0.74 (+4.93%)

Verified data

Trading days shown
60
Coverage start
June 25, 2026
Coverage end
September 18, 2026
Display currency
USD
Market data provider
Polygon

Explore related company data

Return to the Tandem Diabetes Care company profile.Review Tandem Diabetes Care valuation and profitability metrics.Review Tandem Diabetes Care analyst price targets.

Read the frequently asked questions.

What is Tandem Diabetes Care's latest verified closing price?

Tandem Diabetes Care closed at $16.915 on September 18, 2026.

What period does Tandem Diabetes Care's price history cover?

The page shows 60 verified sessions from June 25, 2026 through September 18, 2026.

What data is included in Tandem Diabetes Care's daily price history?

Each row includes the open, high, low, close, volume and change from the prior close.

Does Tandem Diabetes Care's price history include market holidays?

The table contains only verified trading sessions and does not create prices for market holidays.

What is the source for Tandem Diabetes Care's daily prices?

Daily aggregate prices are provided by Polygon.