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TNDM
Tandem Diabetes Care, Inc.
stock NASDAQ

At Close

Sep 30, 2026 3:59:53 PM EDT

16.31USD-1.569%(-0.26)2,198,738

14.06Bid 18.72Ask 4.66Spread

Pre-market

Sep 30, 2026 9:28:30 AM EDT

16.62USD+0.302%(+0.05)13,572

After-hours

Sep 29, 2026 4:36:30 PM EDT

16.60USD+0.121%(+0.02)0

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Oct 16, 2026 Nov 20, 2026 Jan 15, 2027 Feb 19, 2027 May 21, 2027

ITM/OTM for Jan 15, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
1,155	2,859	291	2,620

TNDM Jan 15, 2027 Exp. - Volume by Strike

Puts

Calls

TNDM Jan 15, 2027 Exp. - Open Interest by Strike

Puts

Calls

TNDM Jan 15, 2027 Exp. - Max Pain @ $15.00

Puts

Calls

TNDM Jan 15, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
65 C	0.10	0.00%	17	102	07-21	TNDM270115C00065000
60 C	0.45	-70.20%	1	8	05-01	TNDM270115C00060000
55 C	0.40	-33.33%	3	10	05-07	TNDM270115C00055000
50 C	0.33	+32.00%	1	8	08-25	TNDM270115C00050000
47 C	0.30	+20.00%	1	8	07-02	TNDM270115C00047000
45 C	0.45	-83.93%	1	12	07-14	TNDM270115C00045000
42 C	0.35	-70.09%	1	21	06-25	TNDM270115C00042000
40 C	0.95	+82.69%	5	28	08-25	TNDM270115C00040000
38 C	0.80	+14.29%	1	39	08-10	TNDM270115C00038000
35 C	0.75	0.00%	2	116	09-28	TNDM270115C00035000
34 C	0.74	-38.33%	1	2	06-22	TNDM270115C00034000
33 C	0.15	-50.00%	1	332	09-24	TNDM270115C00033000
32 C	0.95	-32.14%	1	2	08-27	TNDM270115C00032000
31 C	0	0%	0			TNDM270115C00031000
30 C	1.53	-39.76%	6	275	08-25	TNDM270115C00030000
29 C	2.40	+26.32%	20	45	08-11	TNDM270115C00029000
28 C	0.90	-52.88%	4	25	09-17	TNDM270115C00028000
27 C	0.55	-70.27%	1	2	09-29	TNDM270115C00027000
26 C	1.70	+13.33%	1	2	09-03	TNDM270115C00026000
25 C	0.75	+87.50%	2	167	09-28	TNDM270115C00025000
24 C	0.60	-52.00%	5	734	09-29	TNDM270115C00024000
23 C	0.95	-68.33%	1	57	09-28	TNDM270115C00023000
22 C	1.20	-20.00%	100	132	09-29	TNDM270115C00022000
21 C	1.40	-6.67%	19	320	09-29	TNDM270115C00021000
20 C	1.75	+71.57%	81	293	09-28	TNDM270115C00020000
19 C	1.60	-46.67%	1	11	09-25	TNDM270115C00019000
18 C	1.90	-26.92%	4	72	09-25	TNDM270115C00018000
17 C	2.45	-68.18%	7	36	09-24	TNDM270115C00017000
16 C	2.58	-67.87%	3	226	09-25	TNDM270115C00016000
15 C	4.60	+9.52%	1	708	09-18	TNDM270115C00015000
14 C	10.60	+63.08%	1	1	08-18	TNDM270115C00014000
13 C	11.40	+96.55%	1	150	08-19	TNDM270115C00013000
12 C	11.00	+155.81%	46	7	08-14	TNDM270115C00012000
11 C	7.70	+48.36%	1	1	07-20	TNDM270115C00011000
10 C	12.40	-0.80%	1	26	08-27	TNDM270115C00010000
9 C	7.93	-25.89%	4	8	06-12	TNDM270115C00009000
8 C	13.60	+46.24%	9	9	08-25	TNDM270115C00008000
7 C	0	0%	0			TNDM270115C00007000
6 C	0	0%	0			TNDM270115C00006000
5 C	20.48	+41.24%	2	8	03-19	TNDM270115C00005000
3 C	18.80	+6.21%	2	11	03-06	TNDM270115C00003000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
65 P	48.50	0%	1	1	11-07	TNDM270115P00065000
60 P	0	0%	0			TNDM270115P00060000
55 P	0	0%	0			TNDM270115P00055000
50 P	0	0%	0			TNDM270115P00050000
47 P	0	0%	0			TNDM270115P00047000
45 P	0	0%	0			TNDM270115P00045000
42 P	0	0%	0			TNDM270115P00042000
40 P	14.55	-3.96%	2	1	02-21	TNDM270115P00040000
38 P	18.88	+21.03%	1	1	03-03	TNDM270115P00038000
35 P	0	0%	0			TNDM270115P00035000
34 P	0	0%	0			TNDM270115P00034000
33 P	10.35	+0.10%	1	1	02-20	TNDM270115P00033000
32 P	0	0%	0			TNDM270115P00032000
31 P	0	0%	0			TNDM270115P00031000
30 P	10.90	+6.34%	1	35	03-12	TNDM270115P00030000
29 P	0	0%	0			TNDM270115P00029000
28 P	6.57	-20.07%	10	4	02-06	TNDM270115P00028000
27 P	0	0%	0			TNDM270115P00027000
26 P	0	0%	0			TNDM270115P00026000
25 P	5.20	-31.40%	8	29	08-11	TNDM270115P00025000
24 P	0	0%	0			TNDM270115P00024000
23 P	6.70	+31.63%	20	76	04-08	TNDM270115P00023000
22 P	0	0%	0			TNDM270115P00022000
21 P	0	0%	0			TNDM270115P00021000
20 P	1.85	-21.28%	3	122	08-19	TNDM270115P00020000
19 P	0	0%	0			TNDM270115P00019000
18 P	2.95	-14.99%	1	16	09-21	TNDM270115P00018000
17 P	1.50	-42.75%	4	5	09-10	TNDM270115P00017000
16 P	1.67	-23.39%	6	6	08-07	TNDM270115P00016000
15 P	1.65	+142.65%	1	6	09-16	TNDM270115P00015000
14 P	0.55	0.00%	18	10	08-18	TNDM270115P00014000
13 P	1.25	+184.09%	1	518	09-25	TNDM270115P00013000
12 P	1.70	+3.03%	2	9	07-14	TNDM270115P00012000
11 P	0.45	-35.71%	11	914	09-17	TNDM270115P00011000
10 P	0.30	-14.29%	132	1,079	09-17	TNDM270115P00010000
9 P	0.43	-4.44%	12	27	07-24	TNDM270115P00009000
8 P	0.35	-45.31%	64	13	07-17	TNDM270115P00008000
7 P	0.40	0%	16	0	06-12	TNDM270115P00007000
6 P	0	0%	0			TNDM270115P00006000
5 P	0.23	-23.33%	112	38	06-12	TNDM270115P00005000
3 P	0	0%	0			TNDM270115P00003000