What is the current annual operating margin of UMC?

As of today, UMC annual operating margin is 17.66%

What is 1-year change in UMC annual operating margin?

UMC annual operating margin is down -18.43% year-over-year

What is 3-year change in UMC annual operating margin?

UMC annual operating margin is down -50.25% over the past 3 years

How far is UMC annual operating margin from its all-time high?

UMC annual operating margin is currently -65.45% below its historical high of 51.12% set on December 1, 1995

How does UMC annual operating margin rank versus sector peers?

UMC annual operating margin is higher than 84.33% of companies in Technology sector

When is UMC next annual earnings release?

As of today, the next annual earnings release for UMC has not been scheduled

What is the current quarterly operating margin of UMC?

As of today, UMC quarterly operating margin is 20.98%

What is UMC quarterly operating margin most recent change?

UMC quarterly operating margin was up +19.48% on June 30, 2026

What is 1-year change in UMC quarterly operating margin?

UMC quarterly operating margin is up +18.40% year-over-year

How far is UMC quarterly operating margin from its all-time high?

UMC quarterly operating margin is currently -45.21% below its historical high of 38.29% set on September 30, 2022

How does UMC quarterly operating margin rank versus sector peers?

UMC quarterly operating margin is higher than 85.44% of companies in Technology sector

When is UMC next earnings release?

The next earnings release for UMC is on October 28, 2026

UMC Operating Margin History & Chart Since 1991

Annual Operating Margin

17.66%3.99%-18.43%

December 31, 2025

Summary

Current Value: As of today, UMC annual operating margin is 17.66%, down -18.43% on December 31, 2025
Historical Performance: UMC annual operating margin is down -50.25% over the past 3 years, up +98.20% over the past 5 years
All-Time High Comparison: UMC annual operating margin is currently -65.45% below its historical high of 51.12% set on December 1, 1995
3-Year Low Comparison: UMC annual operating margin is at its 3-year low
Sector Comparison: UMC annual operating margin is higher than 84.33% of companies in Technology sector

Operating Margin Chart

beforeafter

Performance

UMC Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Operating Margin	Dec 31, 25	17.66%	-18.4%	-50.3%	+98.2%	+1.7%
Quarterly Operating Margin	Jun 30, 26	20.98%	+18.4%	-18.8%	+10.0%	+164.6%
Price	Jul 31, 26	$19.03	+178.2%	+153.4%	+80.7%	+727.4%
PE Ratio	Jul 31, 26	17.90	+28.1%	+139.0%	+3.4%	+128.3%
Annual Revenue	Dec 31, 25	$7.62B	+5.4%	-18.4%	+26.9%	+89.2%
Annual Operating Profit	Dec 31, 25	$1.35B	-14.0%	-59.4%	+151.7%	+92.3%
Annual Gross Margin	Dec 31, 25	29.01%	-6.9%	-34.1%	+45.6%	+6.3%
Annual Net Margin	Dec 31, 25	17.48%	-13.8%	-44.6%	+13.7%	-7.1%

Operating Margin Highs

UMC Annual Operating Margin Highs Comparison
Period	High	Date	Current
3Y	35.50%	N/A	-50.3%
5Y	35.50%	Dec 31, 22	-50.3%
All	51.12%	Dec 1, 95	-65.5%

Operating Margin Lows

UMC Annual Operating Margin Lows Comparison
Period	Low	Date	Current
3Y	17.66%	Dec 31, 25	at low
5Y	8.91%	N/A	+98.2%
All	-9.79%	Dec 31, 01	+280.4%

Operating Margin History

Year	Value	Change
2025	17.66%	-18.4%
2024	21.65%	-10.6%
2023	24.22%	-31.8%
2022	35.50%	+62.8%
2021	21.81%	+144.8%
2020	8.91%	+2,800.0%
2019	-0.33%	-173.3%
2018	0.45%	-86.3%
2017	3.29%	-24.7%
2016	4.37%	-46.4%
2015	8.15%	+8.8%
2014	7.49%	+122.9%
2013	3.36%	+6.7%
2012	3.15%	-29.1%
2011	4.44%	-74.4%
2010	17.37%	+764.2%
2009	2.01%	+128.4%
2008	0.88%	-83.7%

Year	Value	Change
2007	5.40%	+17.1%
2006	4.61%	+157.2%
2005	-8.06%	-147.7%
2004	16.91%	+65.5%
2003	10.22%	+6,713.3%
2002	0.15%	+101.5%
2001	-9.79%	-123.6%
2000	41.43%	+107.8%
1999	19.94%	+836.2%
1998	2.13%	-85.1%
1997	14.29%	-47.2%
1996	27.07%	-47.0%
1995	51.12%	+18.3%
1994	43.21%	+60.9%
1993	26.86%	+29.0%
1992	20.82%	+47.3%
1991	14.13%	-

FAQ

What is the current annual operating margin of UMC?: As of today, UMC annual operating margin is 17.66%
What is 1-year change in UMC annual operating margin?: UMC annual operating margin is down -18.43% year-over-year
What is 3-year change in UMC annual operating margin?: UMC annual operating margin is down -50.25% over the past 3 years
How far is UMC annual operating margin from its all-time high?: UMC annual operating margin is currently -65.45% below its historical high of 51.12% set on December 1, 1995
How does UMC annual operating margin rank versus sector peers?: UMC annual operating margin is higher than 84.33% of companies in Technology sector
When is UMC next annual earnings release?: As of today, the next annual earnings release for UMC has not been scheduled

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

Quarterly Operating Margin

20.98%3.42%+19.48%

June 30, 2026

Summary

Current Value: As of today, UMC quarterly operating margin is 20.98%, up +19.48% on June 30, 2026
Historical Performance: UMC quarterly operating margin is up +18.40% year-over-year, down -18.75% over the past 3 years
All-Time High Comparison: UMC quarterly operating margin is currently -45.21% below its historical high of 38.29% set on September 30, 2022
3-Year Low Comparison: UMC quarterly operating margin is +30.23% above its 3-year low of 16.11% reached on March 31, 2025
Sector Comparison: UMC quarterly operating margin is higher than 85.44% of companies in Technology sector

Performance

UMC Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Operating Margin	Jun 30, 26	20.98%	+19.5%	+18.4%	-18.8%	+10.0%
Annual Operating Margin	Dec 31, 25	17.66%	–	-18.4%	-50.3%	+98.2%
Price	Jul 31, 26	$19.03	+45.7%	+178.2%	+153.4%	+80.7%
PE Ratio	Jul 31, 26	17.90	-11.6%	+28.1%	+139.0%	+3.4%
Quarterly Revenue	Jun 30, 26	$2.17B	+12.7%	+14.3%	+18.6%	+19.5%
Quarterly Operating Profit	Jun 30, 26	$456.05M	+34.6%	+35.3%	-3.6%	+31.4%
Quarterly Gross Margin	Jun 30, 26	30.64%	+12.9%	+13.9%	-11.9%	+4.4%
Quarterly Net Margin	Jun 30, 26	61.43%	+132.7%	+307.9%	+117.5%	+163.5%

Quarterly Operating Margin Highs

UMC Quarterly Operating Margin Highs Comparison
Period	High	Date	Current
1Y	20.98%	Jun 30, 26	at high
3Y	25.83%	Sep 30, 23	-18.8%
5Y	38.29%	Sep 30, 22	-45.2%
All	38.29%	Sep 30, 22	-45.2%

Quarterly Operating Margin Lows

UMC Quarterly Operating Margin Lows Comparison
Period	Low	Date	Current
1Y	17.56%	Mar 31, 26	+19.5%
3Y	16.11%	Mar 31, 25	+30.2%
5Y	16.11%	Mar 31, 25	+30.2%
All	-284.35%	Dec 31, 01	+107.4%

Quarterly Operating Margin History

Month	Value	Change
Jun 2026	20.98%	+19.5%
Mar 2026	17.56%	-6.2%
Dec 2025	18.73%	+4.0%
Sep 2025	18.01%	+1.6%
Jun 2025	17.72%	+10.0%
Mar 2025	16.11%	-16.1%
Dec 2024	19.20%	-16.3%
Sep 2024	22.93%	-4.7%
Jun 2024	24.07%	+17.9%
Mar 2024	20.41%	+0.4%
Dec 2023	20.33%	-21.3%
Sep 2023	25.83%	+0.0%
Jun 2023	25.82%	+4.1%
Mar 2023	24.80%	-24.6%
Dec 2022	32.91%	-14.1%
Sep 2022	38.29%	+3.1%
Jun 2022	37.15%	+12.2%
Mar 2022	33.10%	+20.1%
Dec 2021	27.55%	+10.7%
Sep 2021	24.88%	+30.5%
Jun 2021	19.07%	+36.9%
Mar 2021	13.93%	+39.9%
Dec 2020	9.96%	+4.8%
Sep 2020	9.50%	-7.9%
Jun 2020	10.32%	+81.7%
Mar 2020	5.68%	+195.8%
Dec 2019	1.92%	-44.3%
Sep 2019	3.45%	+1,542.9%
Jun 2019	0.21%	+102.6%
Mar 2019	-8.20%	-62.4%
Dec 2018	-5.05%	-262.9%
Sep 2018	3.10%	-17.6%
Jun 2018	3.76%	+783.6%
Mar 2018	-0.55%	-118.3%
Dec 2017	3.00%	-4.8%
Sep 2017	3.15%	-16.0%
Jun 2017	3.75%	+15.4%
Mar 2017	3.25%	-41.7%
Dec 2016	5.57%	+10.3%
Sep 2016	5.05%	-23.0%
Jun 2016	6.56%	+7,388.9%
Mar 2016	-0.09%	-101.6%
Dec 2015	5.65%	+11.9%
Sep 2015	5.05%	-50.2%

Month	Value	Change
Jun 2015	10.15%	-9.9%
Mar 2015	11.27%	-6.8%
Dec 2014	12.09%	+87.2%
Sep 2014	6.46%	-20.5%
Jun 2014	8.13%	+195.6%
Mar 2014	2.75%	+252.6%
Dec 2013	0.78%	-89.3%
Sep 2013	7.31%	+100.8%
Jun 2013	3.64%	+222.1%
Mar 2013	1.13%	+145.0%
Dec 2012	-2.51%	-138.4%
Sep 2012	6.54%	-8.3%
Jun 2012	7.13%	+710.2%
Mar 2012	0.88%	+116.9%
Dec 2011	-5.20%	-996.6%
Sep 2011	0.58%	-92.7%
Jun 2011	7.93%	-36.0%
Mar 2011	12.39%	-33.0%
Dec 2010	18.50%	-11.9%
Sep 2010	21.01%	+21.7%
Jun 2010	17.27%	+49.5%
Mar 2010	11.55%	>+9,900.0%
Dec 2009	0.09%	-99.7%
Sep 2009	27.17%	+167.9%
Jun 2009	10.14%	+113.8%
Mar 2009	-73.43%	-620.6%
Dec 2008	-10.19%	-434.1%
Sep 2008	3.05%	-69.1%
Jun 2008	9.87%	+542.6%
Mar 2008	-2.23%	-266.4%
Jun 2007	1.34%	+100.5%
Dec 2006	-268.15%	>-9,900.0%
Jun 2006	1.60%	-83.3%
Sep 2005	9.56%	+167.2%
Jun 2005	-14.23%	+93.8%
Dec 2004	-229.25%	+1.8%
Dec 2003	-233.47%	-3,675.3%
Jun 2003	6.53%	+102.3%
Dec 2002	-284.28%	-7,400.8%
Jun 2002	-3.79%	+98.7%
Dec 2001	-284.35%	-274.4%
Dec 2000	-75.94%	-307.8%
Jun 2000	36.54%	-

FAQ

What is the current quarterly operating margin of UMC?: As of today, UMC quarterly operating margin is 20.98%
What is UMC quarterly operating margin most recent change?: UMC quarterly operating margin was up +19.48% on June 30, 2026
What is 1-year change in UMC quarterly operating margin?: UMC quarterly operating margin is up +18.40% year-over-year
How far is UMC quarterly operating margin from its all-time high?: UMC quarterly operating margin is currently -45.21% below its historical high of 38.29% set on September 30, 2022
How does UMC quarterly operating margin rank versus sector peers?: UMC quarterly operating margin is higher than 85.44% of companies in Technology sector
When is UMC next earnings release?: The next earnings release for UMC is on October 28, 2026

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

Data Sources & References

UMC Official Website www.umc.com
UMC Profile on Yahoo Finance finance.yahoo.com/quote/UMC
UMC Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/umc