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TAC
TransAlta Corporation
stock NYSE

At Close

Sep 25, 2026 3:59:55 PM EDT

11.53USD-2.039%(-0.24)703,331

11.52Bid 11.54Ask 0.02Spread

Pre-market

0.00USD-100.000%(-11.77)0

After-hours

Sep 25, 2026 4:10:30 PM EDT

11.53USD0.000%(0.00)1

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Oct 16, 2026 Nov 20, 2026 Dec 18, 2026 Mar 19, 2027

ITM/OTM for Nov 20, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
965	16,724	976	373

TAC Nov 20, 2026 Exp. - Volume by Strike

Puts

Calls

TAC Nov 20, 2026 Exp. - Open Interest by Strike

Puts

Calls

TAC Nov 20, 2026 Exp. - Max Pain @ $12.00

Puts

Calls

TAC Nov 20, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
35 C	0.05	0.00%	159	2,019	06-12	TAC261120C00035000
30 C	0.09	-10.00%	2	512	06-18	TAC261120C00030000
25 C	0.01	-80.00%	5	2,667	08-28	TAC261120C00025000
22 C	0.01	-95.00%	8	1,013	09-14	TAC261120C00022000
20 C	0.05	0.00%	18	4,118	08-25	TAC261120C00020000
19 C	0	0%	0			TAC261120C00019000
18 C	0.60	+33.33%	19	78	07-08	TAC261120C00018000
17 C	0.07	-30.00%	2	1,948	09-22	TAC261120C00017000
16 C	0.30	-14.29%	1	59	08-18	TAC261120C00016000
15 C	0.20	0.00%	15	3,523	09-21	TAC261120C00015000
14 C	0.30	-45.45%	10	250	09-21	TAC261120C00014000
13 C	0.50	0.00%	1	481	09-23	TAC261120C00013000
12 C	0.85	-76.39%	51	56	09-16	TAC261120C00012000
11 C	1.63	-58.21%	2	74	08-24	TAC261120C00011000
10 C	2.50	0.00%	10	671	09-18	TAC261120C00010000
9 C	4.20	-5.62%	3	7	05-12	TAC261120C00009000
8 C	5.00	-23.08%	1	161	07-30	TAC261120C00008000
7 C	0	0%	0			TAC261120C00007000
6 C	0	0%	0			TAC261120C00006000
5 C	8.70	+0.23%	3	49	06-29	TAC261120C00005000
4 C	0	0%	0			TAC261120C00004000
3 C	10.42	+7.09%	2	3	06-11	TAC261120C00003000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
35 P	22.40	0%	6	0	02-04	TAC261120P00035000
30 P	17.40	0%	12	1	02-04	TAC261120P00030000
25 P	0	0%	0			TAC261120P00025000
22 P	0	0%	0			TAC261120P00022000
20 P	5.50	-8.33%	8	108	10-24	TAC261120P00020000
19 P	0	0%	0			TAC261120P00019000
18 P	0	0%	0			TAC261120P00018000
17 P	4.96	+6.67%	40	75	08-03	TAC261120P00017000
16 P	0	0%	0			TAC261120P00016000
15 P	2.95	0.00%	10	610	08-27	TAC261120P00015000
14 P	2.53	-8.00%	1	17	09-02	TAC261120P00014000
13 P	1.37	+14.17%	13	104	08-18	TAC261120P00013000
12 P	0.75	-3.85%	1	61	09-23	TAC261120P00012000
11 P	0.30	-14.29%	5	249	09-14	TAC261120P00011000
10 P	0.25	-37.50%	3	23	09-01	TAC261120P00010000
9 P	0.60	0%	1	1	03-05	TAC261120P00009000
8 P	0.05	-83.33%	20	22	08-24	TAC261120P00008000
7 P	0	0%	0			TAC261120P00007000
6 P	0	0%	0			TAC261120P00006000
5 P	0.05	-80.00%	20	38	05-06	TAC261120P00005000
4 P	0	0%	0			TAC261120P00004000
3 P	0.10	+100.00%	5	40	01-27	TAC261120P00003000

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