What is the current annual debt to equity of UMC?

As of today, UMC annual debt to equity is 0.21

What is 1-year change in UMC annual debt to equity?

UMC annual debt to equity is down -4.55% year-over-year

What is 3-year change in UMC annual debt to equity?

UMC annual debt to equity is up +31.25% over the past 3 years

How far is UMC annual debt to equity from its all-time high?

UMC annual debt to equity is currently -58.82% below its historical high of 0.51 set on December 31, 2017

How does UMC annual debt to equity rank versus sector peers?

UMC annual debt to equity is higher than 57.01% of companies in Technology sector

When is UMC next annual earnings release?

The next annual earnings release for UMC is on January 27, 2027

What is the current quarterly debt to equity of UMC?

As of today, UMC quarterly debt to equity is 0.17

What is UMC quarterly debt to equity most recent change?

UMC quarterly debt to equity was up +21.43% on September 30, 2026

What is 1-year change in UMC quarterly debt to equity?

UMC quarterly debt to equity is down -32.00% year-over-year

How far is UMC quarterly debt to equity from its all-time high?

UMC quarterly debt to equity is currently -66.67% below its historical high of 0.51 set on December 31, 2017

How does UMC quarterly debt to equity rank versus sector peers?

UMC quarterly debt to equity is higher than 51.83% of companies in Technology sector

When is UMC next earnings release?

The next earnings release for UMC is on January 27, 2027

UMC Debt To Equity Ratio History & Chart Since 1991

Annual Debt To Equity

0.210.01-4.55%

December 31, 2025

Summary

Current Value: As of today, UMC annual debt to equity is 0.21, down -4.55% on December 31, 2025
Historical Performance: UMC annual debt to equity is up +31.25% over the past 3 years, down -27.59% over the past 5 years
All-Time High Comparison: UMC annual debt to equity is currently -58.82% below its historical high of 0.51 set on December 31, 2017
3-Year Low Comparison: UMC annual debt to equity is +31.25% above its 3-year low of 0.16 reached on an earlier date
Sector Comparison: UMC annual debt to equity is higher than 57.01% of companies in Technology sector

Debt To Equity Chart

Performance

UMC Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Debt To Equity	Dec 31, 25	0.21	-4.5%	+31.3%	-27.6%	+162.5%
Quarterly Debt To Equity	Sep 30, 26	0.17	-32.0%	-29.2%	-45.2%	-5.6%
Price	Nov 10, 26	$15.22	+104.8%	+98.7%	+37.2%	+598.2%
Annual Total Debt	Dec 31, 25	$2.49B	+0.3%	+44.0%	+2.4%	+337.1%
	Dec 31, 25	$12.09B	+4.8%	+10.9%	+44.1%	+60.7%
	Dec 31, 25	2.30	-8.7%	-0.9%	+10.1%	+11.7%
	Dec 31, 25	1.88	-7.8%	-7.4%	+4.4%	+5.6%
	Dec 31, 25	$878.31M	+42.9%	+232.3%	-36.0%	+160.5%
	Dec 31, 25	$1.62B	-13.6%	+10.1%	+52.3%	+592.5%
	Sep 30, 26	8	+14.3%	+100.0%	+33.3%	+60.0%
	Nov 10, 26	5.07	+50.5%	+34.8%	+12.9%	+85.7%

Debt To Equity Highs

UMC Annual Debt To Equity Highs Comparison
Period	High	Date	Current
3Y	0.22	Dec 31, 23	-4.5%
5Y	0.30	Dec 31, 21	-30.0%
All	0.51	Dec 31, 17	-58.8%

Debt To Equity Lows

UMC Annual Debt To Equity Lows Comparison
Period	Low	Date	Current
3Y	0.16	N/A	+31.3%
5Y	0.16	Dec 31, 22	+31.3%
All	0.05	Dec 31, 08	+320.0%

Debt To Equity History

Year	Value	Change
2025	0.21	-4.5%
2024	0.22	0.0%
2023	0.22	+37.5%
2022	0.16	-46.7%
2021	0.30	+3.4%
2020	0.29	-34.1%
2019	0.44	+7.3%
2018	0.41	-19.6%
2017	0.51	+18.6%
2016	0.43	+65.4%
2015	0.26	+30.0%
2014	0.20	-16.7%
2013	0.24	0.0%
2012	0.24	+26.3%
2011	0.19	+137.5%
2010	0.08	+33.3%
2009	0.06	+20.0%
2008	0.05	-61.5%

Year	Value	Change
2007	0.13	-7.1%
2006	0.14	-36.4%
2005	0.22	-18.5%
2004	0.27	-25.0%
2003	0.36	+9.1%
2002	0.33	+6.5%
2001	0.31	+40.9%
2000	0.22	+46.7%
1999	0.15	-48.3%
1998	0.29	+20.8%
1997	0.24	-27.3%
1996	0.33	-8.3%
1995	0.36	-10.0%
1994	0.40	+29.0%
1993	0.31	-3.1%
1992	0.32	-31.9%
1991	0.47	-

FAQ

What is the current annual debt to equity of UMC?: As of today, UMC annual debt to equity is 0.21
What is 1-year change in UMC annual debt to equity?: UMC annual debt to equity is down -4.55% year-over-year
What is 3-year change in UMC annual debt to equity?: UMC annual debt to equity is up +31.25% over the past 3 years
How far is UMC annual debt to equity from its all-time high?: UMC annual debt to equity is currently -58.82% below its historical high of 0.51 set on December 31, 2017
How does UMC annual debt to equity rank versus sector peers?: UMC annual debt to equity is higher than 57.01% of companies in Technology sector
When is UMC next annual earnings release?: The next annual earnings release for UMC is on January 27, 2027

Debt To Equity Formula

Debt To Equity =

Total Debt

Quarterly Debt To Equity

0.170.03+21.43%

September 30, 2026

Summary

Current Value: As of today, UMC quarterly debt to equity is 0.17, up +21.43% on September 30, 2026
Historical Performance: UMC quarterly debt to equity is down -32.00% year-over-year, down -29.17% over the past 3 years
All-Time High Comparison: UMC quarterly debt to equity is currently -66.67% below its historical high of 0.51 set on December 31, 2017
3-Year Low Comparison: UMC quarterly debt to equity is +21.43% above its 3-year low of 0.14 reached on June 30, 2026
Sector Comparison: UMC quarterly debt to equity is higher than 51.83% of companies in Technology sector

Performance

UMC Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Debt To Equity	Sep 30, 26	0.17	+21.4%	-32.0%	-29.2%	-45.2%
Annual Debt To Equity	Dec 31, 25	0.21	–	-4.5%	+31.3%	-27.6%
Price	Nov 10, 26	$15.22	-19.0%	+104.8%	+98.7%	+37.2%
Quarterly Total Debt	Sep 30, 26	$2.50B	+25.6%	-15.3%	-5.0%	-13.5%
	Sep 30, 26	$14.79B	+6.2%	+24.9%	+36.6%	+60.1%
	Sep 30, 26	3.27	+50.7%	+39.7%	+38.0%	+31.3%
	Sep 30, 26	2.75	+51.9%	+43.2%	+39.6%	+23.9%
	Sep 30, 26	$397.67M	+0.5%	-60.6%	-58.0%	-55.4%
	Sep 30, 26	$2.10B	+31.8%	+8.3%	+24.8%	+5.2%
	Sep 30, 26	8	0.0%	+14.3%	+100.0%	+33.3%
	Nov 10, 26	5.07	-14.8%	+50.5%	+34.8%	+12.9%

Quarterly Debt To Equity Highs

UMC Quarterly Debt To Equity Highs Comparison
Period	High	Date	Current
1Y	0.25	N/A	-32.0%
3Y	0.26	Sep 30, 24	-34.6%
5Y	0.31	N/A	-45.2%
All	0.51	Dec 31, 17	-66.7%

Quarterly Debt To Equity Lows

UMC Quarterly Debt To Equity Lows Comparison
Period	Low	Date	Current
1Y	0.14	Jun 30, 26	+21.4%
3Y	0.14	Jun 30, 26	+21.4%
5Y	0.14	Jun 30, 26	+21.4%
All	0.04	Jun 30, 08	+325.0%

Quarterly Debt To Equity History

Month	Value	Change
Sep 2026	0.17	+21.4%
Jun 2026	0.14	-26.3%
Mar 2026	0.19	-13.6%
Dec 2025	0.22	-12.0%
Sep 2025	0.25	+25.0%
Jun 2025	0.20	+11.1%
Mar 2025	0.18	-18.2%
Dec 2024	0.22	-15.4%
Sep 2024	0.26	+30.0%
Jun 2024	0.20	0.0%
Mar 2024	0.20	-9.1%
Dec 2023	0.22	-8.3%
Sep 2023	0.24	+50.0%
Jun 2023	0.16	+6.7%
Mar 2023	0.15	-6.3%
Dec 2022	0.16	-20.0%
Sep 2022	0.20	-13.0%
Jun 2022	0.23	-11.5%
Mar 2022	0.26	-13.3%
Dec 2021	0.30	-3.2%
Sep 2021	0.31	-3.1%
Jun 2021	0.32	+14.3%
Mar 2021	0.28	-3.4%
Dec 2020	0.29	-9.4%
Sep 2020	0.32	-13.5%
Jun 2020	0.37	0.0%
Mar 2020	0.37	-15.9%
Dec 2019	0.44	-10.2%
Sep 2019	0.49	+8.9%
Jun 2019	0.45	0.0%
Mar 2019	0.45	+9.8%
Dec 2018	0.41	0.0%
Sep 2018	0.41	+2.5%
Jun 2018	0.40	-9.1%
Mar 2018	0.44	-13.7%
Dec 2017	0.51	+6.3%
Sep 2017	0.48	0.0%
Jun 2017	0.48	+2.1%
Mar 2017	0.47	+9.3%
Dec 2016	0.43	+4.9%
Sep 2016	0.41	+17.1%
Jun 2016	0.35	+25.0%

Month	Value	Change
Mar 2016	0.28	+7.7%
Dec 2015	0.26	0.0%
Sep 2015	0.26	+4.0%
Jun 2015	0.25	+25.0%
Mar 2015	0.20	0.0%
Dec 2014	0.20	-9.1%
Sep 2014	0.22	-4.3%
Jun 2014	0.23	-8.0%
Mar 2014	0.25	+4.2%
Dec 2013	0.24	-7.7%
Sep 2013	0.26	0.0%
Jun 2013	0.26	0.0%
Mar 2013	0.26	+8.3%
Dec 2012	0.24	0.0%
Sep 2012	0.24	0.0%
Jun 2012	0.24	+33.3%
Mar 2012	0.18	-5.3%
Dec 2011	0.19	+5.6%
Sep 2011	0.18	+5.9%
Jun 2011	0.17	+70.0%
Mar 2011	0.10	+25.0%
Dec 2010	0.08	+33.3%
Sep 2010	0.06	+20.0%
Jun 2010	0.05	-28.6%
Mar 2010	0.07	+16.7%
Dec 2009	0.06	+50.0%
Sep 2009	0.04	0.0%
Jun 2009	0.04	-20.0%
Mar 2009	0.05	0.0%
Dec 2008	0.05	+25.0%
Sep 2008	0.04	0.0%
Jun 2008	0.04	-50.0%
Mar 2008	0.08	-33.3%
Dec 2006	0.12	-55.6%
Dec 2004	0.27	-25.0%
Dec 2003	0.36	+9.1%
Dec 2002	0.33	+3.1%
Jun 2002	0.32	+3.2%
Dec 2001	0.31	+29.2%
Dec 2000	0.24	-27.3%
Jun 2000	0.33	-

FAQ

What is the current quarterly debt to equity of UMC?: As of today, UMC quarterly debt to equity is 0.17
What is UMC quarterly debt to equity most recent change?: UMC quarterly debt to equity was up +21.43% on September 30, 2026
What is 1-year change in UMC quarterly debt to equity?: UMC quarterly debt to equity is down -32.00% year-over-year
How far is UMC quarterly debt to equity from its all-time high?: UMC quarterly debt to equity is currently -66.67% below its historical high of 0.51 set on December 31, 2017
How does UMC quarterly debt to equity rank versus sector peers?: UMC quarterly debt to equity is higher than 51.83% of companies in Technology sector
When is UMC next earnings release?: The next earnings release for UMC is on January 27, 2027

Debt To Equity Formula

Debt To Equity =

Total Debt

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