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UMC
United Microelectronic Corp.
stock NYSE ADR

At Close

Jul 23, 2026 3:59:59 PM EDT

20.88USD-1.926%(-0.41)9,188,085

17.77Bid 20.91Ask 3.14Spread

Pre-market

Jul 23, 2026 9:29:30 AM EDT

20.51USD-3.680%(-0.78)50,237

After-hours

Jul 23, 2026 4:40:30 PM EDT

20.88USD-0.021%(0.00)2,202,224

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Oct 16, 2026 Jan 15, 2027 Jan 21, 2028

ITM/OTM for Aug 21, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
406	61,417	8,499	4,329

UMC Aug 21, 2026 Exp. - Volume by Strike

Puts

Calls

UMC Aug 21, 2026 Exp. - Open Interest by Strike

Puts

Calls

UMC Aug 21, 2026 Exp. - Max Pain @ $24.00

Puts

Calls

UMC Aug 21, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
41 C	0.12	-33.33%	1	28	07-20	UMC260821C00041000
40 C	0.07	-53.33%	3	36	07-20	UMC260821C00040000
39 C	0.15	-42.31%	1	8	07-17	UMC260821C00039000
38 C	0.60	+25.00%	2	2	07-09	UMC260821C00038000
37 C	0.10	-88.10%	2	504	07-21	UMC260821C00037000
36 C	0.60	-3.23%	2	103	07-15	UMC260821C00036000
35 C	0.17	-34.62%	4	1,105	07-21	UMC260821C00035000
34 C	0.16	-70.91%	36	47	07-20	UMC260821C00034000
33 C	0.23	-48.89%	8	560	07-22	UMC260821C00033000
32 C	0.30	-68.42%	4	56	07-20	UMC260821C00032000
31 C	0.40	+14.29%	2	1,317	07-21	UMC260821C00031000
30 C	0.40	-4.76%	28	1,442	07-22	UMC260821C00030000
29 C	0.54	+12.50%	7	42	07-21	UMC260821C00029000
28 C	0.58	-12.12%	10	2,846	07-22	UMC260821C00028000
27 C	0.75	-10.71%	28	23,911	07-22	UMC260821C00027000
26 C	0.93	+3.33%	3	3,911	07-22	UMC260821C00026000
25 C	1.10	0.00%	41	1,094	07-22	UMC260821C00025000
24 C	1.34	-1.47%	47	22,749	07-22	UMC260821C00024000
23 C	1.60	-6.98%	118	896	07-22	UMC260821C00023000
22 C	2.15	+6.44%	26	235	07-22	UMC260821C00022000
21 C	2.55	+4.08%	30	525	07-22	UMC260821C00021000
20 C	3.14	+7.53%	4	244	07-22	UMC260821C00020000
19 C	3.72	+3.33%	2	77	07-22	UMC260821C00019000
18 C	4.10	0.00%	1	35	07-22	UMC260821C00018000
17 C	5.00	-16.67%	10	27	07-21	UMC260821C00017000
16 C	5.40	-44.62%	1	18	07-20	UMC260821C00016000
15 C	9.40	-9.62%	1	3	07-10	UMC260821C00015000
14 C	9.60	-5.88%	2	2	07-07	UMC260821C00014000
13 C	0	0%	0			UMC260821C00013000
12 C	0	0%	0			UMC260821C00012000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
41 P	16.20	0%	30	30	06-26	UMC260821P00041000
40 P	0	0%	0			UMC260821P00040000
39 P	0	0%	0			UMC260821P00039000
38 P	0	0%	0			UMC260821P00038000
37 P	0	0%	0			UMC260821P00037000
36 P	0	0%	0			UMC260821P00036000
35 P	0	0%	0			UMC260821P00035000
34 P	0	0%	0			UMC260821P00034000
33 P	0	0%	0			UMC260821P00033000
32 P	0	0%	0			UMC260821P00032000
31 P	7.46	0%	3	3	06-23	UMC260821P00031000
30 P	7.60	+22.58%	1	39	07-07	UMC260821P00030000
29 P	5.10	0%	136	136	06-24	UMC260821P00029000
28 P	7.62	+41.11%	2	691	07-21	UMC260821P00028000
27 P	6.27	+6.27%	2	352	07-17	UMC260821P00027000
26 P	5.05	+18.82%	2	51	07-16	UMC260821P00026000
25 P	4.90	+13.95%	4	349	07-17	UMC260821P00025000
24 P	4.25	+15.49%	4	3,945	07-17	UMC260821P00024000
23 P	3.27	-13.95%	100	1,310	07-22	UMC260821P00023000
22 P	2.60	-7.47%	5	588	07-22	UMC260821P00022000
21 P	2.08	-21.51%	3	1,005	07-22	UMC260821P00021000
20 P	1.60	-8.57%	49	1,259	07-22	UMC260821P00020000
19 P	1.20	-10.45%	17	566	07-22	UMC260821P00019000
18 P	0.80	-20.00%	5	1,399	07-22	UMC260821P00018000
17 P	0.60	-20.00%	2	363	07-22	UMC260821P00017000
16 P	0.55	-15.38%	7	358	07-21	UMC260821P00016000
15 P	0.25	-32.43%	2	318	07-22	UMC260821P00015000
14 P	0.15	-40.00%	42	65	07-22	UMC260821P00014000
13 P	0	0%	0			UMC260821P00013000
12 P	0.13	0%	1	1	07-20	UMC260821P00012000

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