POCI vs ZKIN

Comparison between Precision Optics Corp Inc (POCI, Company) and ZK International Group Co Ltd (ZKIN, Company).

POCI is from the Healthcare sector, while ZKIN is from the Basic Materials sector.

5-Year PerformancePOCI has outperformed ZKIN, delivering a return of +27.5% compared to -47.2%

POCI vs ZKIN - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

Metric	POCI(COMPANY)	ZKIN(COMPANY)
Market Cap	$63M	$62M
Max Drawdown	100.00%	98.97%
Sharpe Ratio	0.62	0.06
5Y Beta	0.24	0.44
Industry	Medical Instruments & Supplies	Steel
P/E Ratio	-9.01	-15.67
5Y EPS CAGR	41.38%	11.55%
Debt to Equity	7.13%	20.40%
Free Cash Flow Yield	-2.43%	0.24%

Market Cap

Winner

POCI

$63M

ZKIN

$62M

Max Drawdown

POCI

100.00%

Winner

ZKIN

98.97%

Sharpe Ratio

Winner

POCI

0.62

ZKIN

0.06

5Y Beta

Winner

POCI

0.24

ZKIN

0.44

Industry

POCI

Medical Instruments & Supplies

ZKIN

Steel

P/E Ratio

POCI

-9.01

Winner

ZKIN

-15.67

5Y EPS CAGR

Winner

POCI

41.38%

ZKIN

11.55%

Debt to Equity

Winner

POCI

7.13%

ZKIN

20.40%

Free Cash Flow Yield

POCI

-2.43%

Winner

ZKIN

0.24%

POCI vs ZKIN - Historical Returns

Returns include dividend reinvestment.

Period	POCI	ZKIN
1 month	+12.60%	-5.59%
3 months	+36.84%	-25.82%
6 months	+35.22%	-25.00%
1 year	+25.16%	-40.53%
5 years(CAGR)	+27.47%	-47.21%
10 years(CAGR)	+27.59%	-34.94%
Max(CAGR)	-6.00%	-34.94%

Winner

POCI

+12.60%

ZKIN

-5.59%

Winner

POCI

+36.84%

ZKIN

-25.82%

Winner

POCI

+35.22%

ZKIN

-25.00%

Winner

POCI

+25.16%

ZKIN

-40.53%

5Y(CAGR)

Winner

POCI

+27.47%

ZKIN

-47.21%

10Y(CAGR)

Winner

POCI

+27.59%

ZKIN

-34.94%

Max(CAGR)

Winner

POCI

-6.00%

ZKIN

-34.94%

POCI vs ZKIN - Annual Returns (1999 - 2026)

Returns include dividend reinvestment.

Year	POCI	ZKIN
2026	+34.59%	-12.34%
2025	-16.47%	-67.03%
2024	-22.01%	-40.53%
2023	+6.55%	+133.28%
2022	+131.88%	-70.68%
2021	+50.00%	-47.94%
2020	-25.00%	+94.74%
2019	+39.53%	-17.83%
2018	+229.27%	-87.62%
2017	-30.51%	+15.98%
2016	-6.35%	N/A
2015	+11.67%	N/A
2014	-33.33%	N/A
2013	+5.88%	N/A
2012	-39.29%	N/A
2011	+833.33%	N/A
2010	-86.36%	N/A
2009	+450.00%	N/A
2008	-96.28%	N/A
2007	-55.94%	N/A
2006	+24.14%	N/A
2005	-70.34%	N/A
2004	-41.78%	N/A
2003	+740.00%	N/A
2002	-65.75%	N/A
2001	-69.68%	N/A
2000	-85.16%	N/A
1999	+1384.01%	N/A

POCI vs ZKIN Drawdown Comparison

The maximum drawdown for POCI was -100.00%, occurring on Jul 29, 2010. This drawdown has not yet recovered.

The maximum drawdown for ZKIN was -98.97%, occurring on Apr 16, 2025. This drawdown has not yet recovered.

The current POCI drawdown is -99.41%. The current ZKIN drawdown is -98.44%.

Rank	POCI	ZKIN
#1	-100.00% Mar 2, 2000 - Jul 29, 2010	-98.97% Mar 22, 2021 - Apr 16, 2025
#2	-38.27% Jan 21, 2000 - Feb 15, 2000	-94.30% Jan 9, 2018 - Mar 22, 2021
#3	-36.87% Dec 30, 1999 - Jan 21, 2000	-33.69% Sep 6, 2017 - Jan 2, 2018
#4	-33.33% Nov 26, 1999 - Dec 13, 1999	-1.30% Jan 4, 2018 - Jan 8, 2018
#5	-28.78% Nov 15, 1999 - Nov 19, 1999	N/A
#6	-23.53% Nov 4, 1999 - Nov 15, 1999	N/A
#7	-14.65% Dec 13, 1999 - Dec 15, 1999	N/A
#8	-13.64% Dec 21, 1999 - Dec 27, 1999	N/A
#9	-11.81% Feb 16, 2000 - Feb 25, 2000	N/A
#10	-9.10% Dec 15, 1999 - Dec 21, 1999	N/A
#11	-7.49% Feb 28, 2000 - Mar 2, 2000	N/A
#12	-5.81% Nov 22, 1999 - Nov 24, 1999	N/A

Correlation

Correlation between POCI and ZKIN is -0.60 which considered as a moderate negative correlation - the stocks show some tendency to move in opposite directions.

-0.60

-101