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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 Oct 16, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
0	172	216	23

TAC Oct 16, 2026 Exp. - Volume by Strike

Puts

Calls

TAC Oct 16, 2026 Exp. - Open Interest by Strike

Puts

Calls

TAC Oct 16, 2026 Exp. - Max Pain @ $12.00

Puts

Calls

TAC Oct 16, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
25 C	0	0%	0			TAC261016C00025000
21 C	0	0%	0			TAC261016C00021000
20 C	0	0%	0			TAC261016C00020000
19 C	0	0%	0			TAC261016C00019000
18 C	0	0%	0			TAC261016C00018000
17 C	0	0%	0			TAC261016C00017000
16 C	0	0%	0			TAC261016C00016000
15 C	0.09	+80.00%	5	10	09-21	TAC261016C00015000
14 C	0.15	+7.14%	1	26	09-23	TAC261016C00014000
13 C	0.15	-40.00%	2	25	09-23	TAC261016C00013000
12 C	0.40	-18.37%	1	111	09-24	TAC261016C00012000
11 C	0	0%	0			TAC261016C00011000
10 C	0	0%	0			TAC261016C00010000
9 C	0	0%	0			TAC261016C00009000
8 C	0	0%	0			TAC261016C00008000
7 C	0	0%	0			TAC261016C00007000
6 C	0	0%	0			TAC261016C00006000
5 C	0	0%	0			TAC261016C00005000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
25 P	0	0%	0			TAC261016P00025000
21 P	0	0%	0			TAC261016P00021000
20 P	0	0%	0			TAC261016P00020000
19 P	0	0%	0			TAC261016P00019000
18 P	0	0%	0			TAC261016P00018000
17 P	0	0%	0			TAC261016P00017000
16 P	0	0%	0			TAC261016P00016000
15 P	3.31	+10.33%	1	1	09-02	TAC261016P00015000
14 P	0	0%	0			TAC261016P00014000
13 P	1.27	0%	1	1	09-14	TAC261016P00013000
12 P	0.32	-28.89%	1	214	09-22	TAC261016P00012000
11 P	0	0%	0			TAC261016P00011000
10 P	0	0%	0			TAC261016P00010000
9 P	0.05	0%	23	23	08-25	TAC261016P00009000
8 P	0	0%	0			TAC261016P00008000
7 P	0	0%	0			TAC261016P00007000
6 P	0	0%	0			TAC261016P00006000
5 P	0	0%	0			TAC261016P00005000

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