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TAC
TransAlta Corporation
stock NYSE

At Close

Jul 24, 2026 3:59:57 PM EDT

13.69USD-2.941%(-0.42)853,813

0.00Bid 0.00Ask 0.00Spread

Pre-market

Jul 23, 2026 9:27:30 AM EDT

14.02USD-0.638%(-0.09)0

After-hours

Jul 24, 2026 4:10:30 PM EDT

13.72USD+0.183%(+0.03)77,735

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 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
1,550	16,255	821	326

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 @ $11.00

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	0.05	-66.67%	1	2,670	07-15	TAC261120C00025000
22 C	0.20	-4.76%	45	1,013	07-08	TAC261120C00022000
20 C	0.20	-42.86%	1	4,133	07-20	TAC261120C00020000
18 C	0.60	+33.33%	19	78	07-08	TAC261120C00018000
17 C	0.50	-16.67%	1	1,968	07-17	TAC261120C00017000
16 C	1.24	+12.73%	4	59	07-10	TAC261120C00016000
15 C	1.20	+26.32%	3	3,690	07-22	TAC261120C00015000
14 C	1.78	-6.32%	1	113	07-23	TAC261120C00014000
13 C	2.35	+17.50%	3	502	07-10	TAC261120C00013000
12 C	3.60	+65.90%	3	6	06-03	TAC261120C00012000
11 C	3.90	+25.81%	1	74	07-09	TAC261120C00011000
10 C	4.00	+8.11%	2	748	07-20	TAC261120C00010000
9 C	4.20	-5.62%	3	7	05-12	TAC261120C00009000
8 C	6.50	+12.07%	100	161	07-08	TAC261120C00008000
7 C	0	0%	0			TAC261120C00007000
5 C	8.70	+0.23%	3	49	06-29	TAC261120C00005000
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
18 P	0	0%	0			TAC261120P00018000
17 P	4.65	-16.67%	3	77	01-28	TAC261120P00017000
16 P	0	0%	0			TAC261120P00016000
15 P	3.43	+3.94%	12	618	04-28	TAC261120P00015000
14 P	2.75	-8.33%	15	17	03-27	TAC261120P00014000
13 P	1.25	+25.00%	1	112	07-16	TAC261120P00013000
12 P	1.02	-29.17%	1	17	07-06	TAC261120P00012000
11 P	0.75	-20.21%	17	95	06-11	TAC261120P00011000
10 P	0.30	-50.00%	3	21	07-07	TAC261120P00010000
9 P	0.60	0%	1	1	03-05	TAC261120P00009000
8 P	0.30	0%	2	2	10-27	TAC261120P00008000
7 P	0	0%	0			TAC261120P00007000
5 P	0.05	-80.00%	20	38	05-06	TAC261120P00005000
3 P	0.10	+100.00%	5	40	01-27	TAC261120P00003000

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