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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 Dec 18, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
495	1,198	3	201

TAC Dec 18, 2026 Exp. - Volume by Strike

Puts

Calls

TAC Dec 18, 2026 Exp. - Open Interest by Strike

Puts

Calls

TAC Dec 18, 2026 Exp. - Max Pain @ $12.00

Puts

Calls

TAC Dec 18, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
25 C	0.22	0%	4	4	06-08	TAC261218C00025000
22 C	0.37	-7.50%	1	21	06-05	TAC261218C00022000
21 C	0.42	-14.29%	1	41	06-05	TAC261218C00021000
20 C	0.54	-16.92%	50	190	06-22	TAC261218C00020000
19 C	0.47	0%	3	3	05-06	TAC261218C00019000
18 C	0.65	-30.11%	4	28	07-16	TAC261218C00018000
17 C	0.88	-2.22%	5	129	07-13	TAC261218C00017000
16 C	0.89	-28.80%	4	291	07-17	TAC261218C00016000
15 C	1.30	+18.18%	1	213	07-22	TAC261218C00015000
14 C	1.80	+15.38%	3	278	07-22	TAC261218C00014000
13 C	2.31	+7.44%	30	309	07-21	TAC261218C00013000
12 C	3.34	+30.98%	10	47	07-08	TAC261218C00012000
11 C	2.35	-17.83%	2	4	05-12	TAC261218C00011000
10 C	4.80	+23.08%	1	11	07-08	TAC261218C00010000
9 C	4.30	-14.00%	10	10	07-20	TAC261218C00009000
8 C	6.30	+5.00%	1	12	06-22	TAC261218C00008000
7 C	6.00	+10.09%	5	7	05-11	TAC261218C00007000
6 C	6.50	-2.99%	60	42	06-10	TAC261218C00006000
5 C	9.14	+15.70%	2	53	06-01	TAC261218C00005000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
25 P	12.50	0.00%	1	1	05-07	TAC261218P00025000
22 P	8.08	0%	2	1	06-01	TAC261218P00022000
21 P	0	0%	0			TAC261218P00021000
20 P	0	0%	0			TAC261218P00020000
19 P	6.70	0%	1	1	05-06	TAC261218P00019000
18 P	0	0%	0			TAC261218P00018000
17 P	0	0%	0			TAC261218P00017000
16 P	0	0%	0			TAC261218P00016000
15 P	0	0%	0			TAC261218P00015000
14 P	0	0%	0			TAC261218P00014000
13 P	1.20	-22.58%	2	35	07-08	TAC261218P00013000
12 P	0.71	-49.29%	30	124	07-21	TAC261218P00012000
11 P	0	0%	0			TAC261218P00011000
10 P	0.35	-46.15%	1	42	07-21	TAC261218P00010000
9 P	0	0%	0			TAC261218P00009000
8 P	0	0%	0			TAC261218P00008000
7 P	0	0%	0			TAC261218P00007000
6 P	0	0%	0			TAC261218P00006000
5 P	0	0%	0			TAC261218P00005000

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