Coherent debt and dilution—

Borrowings, liquidity, share count and stock-based dilution.

Total debt

USD millions

$3,222.224M

Cash & equivalents

USD millions

$1,162.018M

Net debt

USD millions

$2,060.206M

Debt / equity

0.29×

Debt / assets

17.61%

Net debt / EBITDA

× · TTM

—

Debt / FCF

× · TTM

—

Interest coverage

× · TTM

—

Current ratio

2.43×

Diluted shares

Million shares

202.19M shares

Basic shares

Million shares

195.67M shares

Share count growth

25.86%

Share repurchases

USD millions

—

Quarterly data

Coherent capital history. Each metric has its own unit. A dash means inputs are missing or the calculation is undefined.
Fiscal period	Ended	Total debtUSD millions	Cash & equivalentsUSD millions	Net debtUSD millions	Debt / equity×	Debt / assets%	Net debt / EBITDA×	Debt / FCF×	Interest coverage×	Current ratio×	Diluted sharesMillion shares	Basic sharesMillion shares	Share count growth%	Share repurchasesUSD millions
FY 2026 Q4	Jun 30, 2026	3,222.22	1,162.02	2,060.21	0.29×	17.61%	—	—	—	2.43×	202.19	195.67	25.86%	—
FY 2026 Q3	Mar 31, 2026	3,193.78	1,592.73	1,601.05	0.29×	18.48%	—	—	—	3.05×	196.37	190.22	22.58%	—
FY 2026 Q2	Dec 31, 2025	3,351.87	863.74	2,488.13	0.38×	22.22%	—	—	—	2.25×	192.76	167.51	8.23%	—
FY 2026 Q1	Sep 30, 2025	3,307.79	852.78	2,455.01	0.54×	22.5%	—	44.83×	—	2.33×	190.68	156.16	1.65%	—
FY 2025 Q4	Jun 30, 2025	3,686.92	909.2	2,777.72	0.61×	24.73%	—	19.13×	—	2.19×	141.31	155.47	1.91%	—
FY 2025 Q3	Mar 31, 2025	3,731.8	890.26	2,841.54	0.65×	25.83%	—	14.56×	—	2.47×	155.18	155.18	2%	—
FY 2025 Q2	Dec 31, 2024	3,859.9	917.82	2,942.09	0.7×	27.19%	—	16.83×	—	2.67×	159.99	154.77	2.11%	—
FY 2025 Q1	Sep 30, 2024	3,988.77	1,019.65	2,969.12	0.68×	27.14%	—	32.35×	—	2.67×	153.63	153.63	—	—
FY 2024 Q4	Jun 30, 2024	4,100.22	926.03	3,174.19	0.73×	28.3%	4.84×	20.61×	—	2.72×	152.55	152.55	9.47%	—
FY 2024 Q3	Mar 31, 2024	4,158.13	898.58	3,259.55	0.73×	28.64%	6.55×	18.48×	-0.41×	2.71×	152.14	152.14	9.36%	—
FY 2024 Q2	Dec 31, 2023	4,211.58	856.26	3,355.32	0.72×	28.72%	5.95×	16.45×	-0.26×	2.88×	151.56	151.56	9.34%	—
FY 2024 Q1	Sep 30, 2023	4,294.1	935.22	3,358.87	0.89×	31.76%	5.87×	10.9×	-0.34×	2.99×	150.33	—	—	—
FY 2023 Q4	Jun 30, 2023	4,309.8	821.31	3,488.49	0.86×	31.43%	5.41×	21.77×	-0.13×	3.01×	139.35	139.35	30.82%	—
FY 2023 Q3	Mar 31, 2023	4,424.83	884.35	3,540.48	0.84×	31.34%	4.52×	34.44×	0.91×	3.08×	139.11	139.11	30.84%	—
FY 2023 Q2	Dec 31, 2022	4,497.74	896.64	3,601.1	0.87×	31.88%	4.9×	303.53×	1.21×	3.02×	138.62	138.62	30.58%	—
FY 2023 Q1	Sep 30, 2022	4,623.29	—	—	0.92×	33.43%	—	132.79×	2.12×	2.87×	133.28	133.28	26.02%	—
FY 2022 Q4	Jun 30, 2022	2,300.43	2,582.37	-281.95	0.64×	29.32%	-0.4×	23.24×	3.42×	3.4×	116.82	106.52	1.49%	—
FY 2022 Q3	Mar 31, 2022	2,312.7	—	—	0.64×	29.78%	—	13.89×	4.58×	1.99×	116.95	106.32	1.49%	—
FY 2022 Q2	Dec 31, 2021	2,320.7	—	—	0.66×	30.34%	—	8×	6.66×	2×	116.44	106.16	1.98%	—
FY 2022 Q1	Sep 30, 2021	1,376.41	1,560.18	-183.77	0.4×	21.12%	-0.27×	4.14×	7.22×	2.97×	115.85	105.76	2.87%	—
FY 2021 Q4	Jun 30, 2021	1,375.14	1,591.89	-216.75	0.4×	21.11%	-0.32×	3.21×	6.71×	4.15×	116.23	104.96	-69.21%	0
FY 2021 Q3	Mar 31, 2021	1,385.45	1,535.31	-149.86	0.42×	21.78%	-0.23×	2.83×	5.22×	4.26×	116.3	104.77	114,926.19%	0
FY 2021 Q2	Dec 31, 2020	1,470.84	834.54	636.3	0.45×	26.05%	1.06×	3.19×	4.1×	3.22×	115.05	104.09	14.53%	—
FY 2021 Q1	Sep 30, 2020	1,530.15	683.99	846.16	0.5×	27.97%	2.03×	4.9×	1.6×	3.09×	105.25	102.81	55.84%	—
FY 2020 Q4	Jun 30, 2020	2,255.34	493.05	1,762.3	1.09×	43.08%	6.77×	14.06×	0.44×	2.66×	340.93	340.93	435.04%	0
FY 2020 Q3	Mar 31, 2020	2,282.43	388.11	1,894.32	1.13×	44.69%	10.26×	47.9×	0.18×	2.8×	0.09	0.09	-99.86%	0
FY 2020 Q2	Dec 31, 2019	2,297.46	376.84	1,920.62	1.11×	44.11%	14.57×	658.86×	-0.54×	2.78×	90.89	90.89	42.93%	—
FY 2020 Q1	Sep 30, 2019	2,377.65	439.55	1,938.1	1.12×	44.27%	10.19×	339.71×	3.91×	3.22×	65.97	65.97	4.02%	—
FY 2019 Q4	Jun 30, 2019	467	204.87	262.13	0.41×	23.9%	1.09×	11.29×	6.63×	3×	65.68	63.72	1.91%	1.62
FY 2019 Q3	Mar 31, 2019	508.65	221.21	287.44	0.46×	26.19%	1.22×	31.15×	6.69×	3.41×	65.7	63.61	1.9%	—
FY 2019 Q2	Dec 31, 2018	480.46	230.26	250.2	0.45×	25.6%	1.06×	12.2×	7.06×	3.17×	65.67	63.59	2.06%	—
FY 2019 Q1	Sep 30, 2018	537.14	271.34	265.8	0.51×	28.56%	1.17×	34.17×	7.03×	3.63×	66.16	63.42	1.08%	—
FY 2018 Q4	Jun 30, 2018	439.01	247.04	191.97	0.43×	24.92%	0.89×	57.95×	7.37×	3.22×	65.16	62.52	-0.91%	0
FY 2018 Q3	Mar 31, 2018	450.99	263.24	187.75	0.44×	25.96%	0.89×	—	8.53×	3.68×	72.38	62.43	-0.61%	0
FY 2018 Q2	Dec 31, 2017	462.77	254.46	208.31	0.48×	27.42%	1.05×	—	10.17×	4.01×	65.04	62.3	-0.14%	0
FY 2018 Q1	Sep 30, 2017	404.74	241.29	163.46	0.43×	25.56%	0.86×	—	13.21×	3.89×	65.28	62.74	1.17%	49.88
FY 2017 Q4	Jun 30, 2017	342.02	271.89	70.13	0.38×	23.15%	0.39×	—	16.97×	3.8×	65.03	63.1	2.25%	—
FY 2017 Q3	Mar 31, 2017	278.1	247.58	30.52	0.33×	20.64%	0.18×	—	19.38×	3.85×	65.01	62.81	2.34%	—
FY 2017 Q2	Dec 31, 2016	262.89	246.2	16.7	0.32×	20.33%	0.11×	11.67×	22.3×	3.8×	64.41	62.39	2%	—
FY 2017 Q1	Sep 30, 2016	248.21	220.1	28.11	0.31×	20.2%	0.18×	5.97×	25.5×	3.79×	63.59	62.02	1.3%	—
FY 2016 Q4	Jun 30, 2016	235.92	218.45	17.47	0.3×	19.46%	0.12×	3.64×	29.8×	3.4×	63.18	61.71	1.3%	0
FY 2016 Q3	Mar 31, 2016	262.87	187.37	75.5	0.34×	21.5%	0.53×	3.29×	30.84×	3.65×	63.05	61.37	0.47%	0
FY 2016 Q2	Dec 31, 2015	146.49	177.08	-30.59	0.19×	14.04%	-0.22×	1.43×	29.43×	3.79×	62.67	61.17	0.06%	0.4
FY 2016 Q1	Sep 30, 2015	162.49	163.78	-1.29	0.22×	15.71%	-0.01×	1.47×	23.92×	3.98×	62.73	61.22	-0.46%	5.88
FY 2015 Q4	Jun 30, 2015	175.96	173.63	2.32	0.24×	16.63%	0.02×	2.28×	19.88×	3.69×	62.53	60.92	-1.29%	0
FY 2015 Q3	Mar 31, 2015	188	154.7	33.3	0.26×	18.11%	0.27×	2.94×	15.17×	3.75×	62.51	61.08	-2.04%	1.43
FY 2015 Q2	Dec 31, 2014	212.51	154.95	57.56	0.3×	20.31%	0.51×	5×	11.71×	3.89×	62.28	61.13	-2.29%	6.21
FY 2015 Q1	Sep 30, 2014	236.73	145.42	91.32	0.35×	22.29%	0.85×	8.53×	10.08×	3.72×	62.79	61.51	-1.4%	5.09
FY 2014 Q4	Jun 30, 2014	241.96	174.66	67.3	0.36×	22.57%	0.68×	3.65×	10.38×	3.74×	63.13	61.71	-0.78%	9.02
FY 2014 Q3	Mar 31, 2014	262.91	185.69	77.22	0.4×	24.12%	0.76×	3.3×	14.56×	3.82×	63.75	62.36	0.36%	10.96
FY 2014 Q2	Dec 31, 2013	282.86	212.68	70.18	0.42×	25.34%	0.65×	3.72×	23.74×	4.22×	63.94	62.56	-0.03%	—
FY 2014 Q1	Sep 30, 2013	211.07	195.21	15.87	0.32×	21.12%	—	2.55×	—	4.62×	63.95	62.38	-0.65%	—
FY 2013 Q4	Jun 30, 2013	114.04	185.43	-71.4	0.18×	13.2%	-0.64×	1.39×	61.63×	4.88×	63.64	62.2	-75.37%	0
FY 2013 Q3	Mar 31, 2013	121.18	155.59	-34.41	0.19×	14.28%	—	1.71×	—	5.44×	63.72	62.13	98,746.55%	9.14
FY 2013 Q2	Dec 31, 2012	124.48	162.81	-38.33	0.2×	14.7%	—	1.7×	—	5.3×	64.02	62.58	-0.22%	4.94
FY 2013 Q1	Sep 30, 2012	17.87	152.61	-134.75	0.03×	2.51%	—	0.29×	—	5.91×	64.2	62.79	0.14%	5.9
FY 2012 Q4	Jun 30, 2012	12.77	134.94	-122.17	0.02×	1.81%	-1.05×	0.28×	384.54×	4.9×	258.76	252.48	403,115.01%	—
FY 2012 Q3	Mar 31, 2012	13.65	119.27	-105.62	0.02×	1.98%	—	0.51×	—	5.28×	0.06	0.06	0.81%	—
FY 2012 Q2	Dec 31, 2011	20.89	123.83	-102.95	0.04×	3.08%	—	0.61×	—	4.63×	64.19	62.72	1.03%	—
FY 2012 Q1	Sep 30, 2011	25.9	110.79	-84.88	0.05×	3.89%	—	0.91×	—	4.68×	64.07	62.7	1.44%	—
FY 2011 Q4	Jun 30, 2011	18.73	149.46	-130.73	0.04×	2.89%	—	0.57×	—	4.35×	0.06	0.06	—	—
FY 2011 Q3	Mar 31, 2011	—	128.48	—	—	—	—	—	—	3.98×	0.06	0.06	—	—
FY 2011 Q2	Dec 31, 2010	—	119.27	—	—	—	—	—	—	4.22×	63.78	62.08	—	—
FY 2011 Q1	Sep 30, 2010	—	113.19	—	—	—	—	—	—	4.21×	63.29	61.81	—	—

Sources and calculations

Financial inputs from company filings. Last checked Oct 18, 2026. A dash means missing inputs or an undefined calculation.

Period changes use the preceding fiscal quarter or year. Percentage changes divide by the absolute prior value; a zero or missing baseline has no percentage change. Percentage metrics show changes in percentage points.

The SBC option subtracts reported share-based compensation from FCF as an economic-cost scenario. Missing SBC never becomes zero.

Debt uses reported borrowings, with overlapping concepts treated as alternatives. Cash excludes restricted cash and short-term investments. Dilution compares split-normalized weighted average basic shares year over year. Share buyback spending does not by itself measure shares retired.

Market prices: Yahoo Finance · COHR, USD. Latest completed close Sep 25, 2026. Price data retrieved Sep 28, 2026.

Total debt: Reported borrowing balances. Uses an aggregate including current maturities, or current plus noncurrent debt. Adds separately disclosed short-term borrowings, with commercial paper as a fallback, unless the selected current/aggregate concept already includes them. Finance leases are included when part of the reported debt concept; undisclosed components are not estimated.
Cash & equivalents: Unrestricted reported cash and cash equivalents. Excludes short-term investments and restricted cash.
Net debt: Total debt − cash and equivalents. Negative means net cash.
Debt / equity: Total debt / equity including noncontrolling interests. Nonpositive equity yields unavailable.
Debt / assets: Total debt / total assets × 100.
Net debt / EBITDA: Period-end net debt / (TTM operating income + TTM depreciation and amortization). Negative net debt is retained.
Debt / FCF: Period-end reported debt / positive TTM free cash flow. Reflects the selected reported capex scope and SBC option.
Interest coverage: TTM operating income / positive TTM interest expense. IFRS finance costs can include more than interest.
Current ratio: Current assets / positive current liabilities.
Diluted shares: Reported weighted average diluted shares, normalized for subsequent recorded stock splits. Fourth-quarter counts use a day-weighted annual/nine-month reconstruction where possible.
Basic shares: Reported weighted average basic shares, normalized for subsequent recorded stock splits.
Share count growth: Year-over-year change in split-normalized weighted average basic shares × 100. A dilution proxy; negative means a lower share count.
Share repurchases: Reported cash payments for repurchase of common shares. This is spending, not a buyback yield.