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Side-by-side financial comparison of BLACK HILLS CORP (BKH) and OSI SYSTEMS INC (OSIS). Click either name above to swap in a different company.

BLACK HILLS CORP is the larger business by last-quarter revenue ($622.7M vs $464.1M, roughly 1.3× OSI SYSTEMS INC). BLACK HILLS CORP runs the higher net margin — 16.8% vs 8.3%, a 8.5% gap on every dollar of revenue. On growth, OSI SYSTEMS INC posted the faster year-over-year revenue change (10.5% vs 6.4%). OSI SYSTEMS INC produced more free cash flow last quarter ($55.5M vs $-101.5M). Over the past eight quarters, OSI SYSTEMS INC's revenue compounded faster (7.0% CAGR vs -6.8%).

Black Hills Corporation is an American diversified energy company that is an electric and gas utility in South Dakota, Montana, Wyoming, Colorado, Arkansas, Kansas, Nebraska, and Iowa. The company sells power throughout the American West. The company is based in Rapid City, South Dakota. It derives its name from its home in the Black Hills of South Dakota.

OSI Systems, Inc. is an American company based in California that develops and markets security and inspection systems such as airport security X-ray machines and metal detectors, medical monitoring and anesthesia systems, and optoelectronic devices. As of June 2010, the company employs approximately 3,180 personnel globally and includes subsidiary companies Spacelabs Healthcare, Rapiscan Systems and OSI Optoelectronics.

BKH vs OSIS — Head-to-Head

Bigger by revenue
BKH
BKH
1.3× larger
BKH
$622.7M
$464.1M
OSIS
Growing faster (revenue YoY)
OSIS
OSIS
+4.1% gap
OSIS
10.5%
6.4%
BKH
Higher net margin
BKH
BKH
8.5% more per $
BKH
16.8%
8.3%
OSIS
More free cash flow
OSIS
OSIS
$157.0M more FCF
OSIS
$55.5M
$-101.5M
BKH
Faster 2-yr revenue CAGR
OSIS
OSIS
Annualised
OSIS
7.0%
-6.8%
BKH

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
BKH
BKH
OSIS
OSIS
Revenue
$622.7M
$464.1M
Net Profit
$104.9M
$38.7M
Gross Margin
32.7%
Operating Margin
27.5%
12.7%
Net Margin
16.8%
8.3%
Revenue YoY
6.4%
10.5%
Net Profit YoY
7.0%
2.3%
EPS (diluted)
$1.39
$2.22

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
BKH
BKH
OSIS
OSIS
Q4 25
$622.7M
$464.1M
Q3 25
$427.4M
$384.6M
Q2 25
$435.7M
$505.0M
Q1 25
$800.4M
$444.4M
Q4 24
$585.1M
$419.8M
Q3 24
$398.6M
$344.0M
Q2 24
$397.1M
$480.9M
Q1 24
$717.2M
$405.4M
Net Profit
BKH
BKH
OSIS
OSIS
Q4 25
$104.9M
$38.7M
Q3 25
$24.9M
$20.6M
Q2 25
$27.5M
$52.7M
Q1 25
$134.3M
$41.1M
Q4 24
$98.0M
$37.8M
Q3 24
$24.4M
$17.9M
Q2 24
$22.8M
$44.7M
Q1 24
$127.9M
$34.0M
Gross Margin
BKH
BKH
OSIS
OSIS
Q4 25
32.7%
Q3 25
32.0%
Q2 25
33.3%
Q1 25
33.8%
Q4 24
35.1%
Q3 24
35.3%
Q2 24
32.1%
Q1 24
33.6%
Operating Margin
BKH
BKH
OSIS
OSIS
Q4 25
27.5%
12.7%
Q3 25
18.4%
8.6%
Q2 25
18.9%
14.5%
Q1 25
25.6%
12.7%
Q4 24
27.9%
13.8%
Q3 24
19.0%
8.8%
Q2 24
17.8%
13.1%
Q1 24
27.0%
12.7%
Net Margin
BKH
BKH
OSIS
OSIS
Q4 25
16.8%
8.3%
Q3 25
5.8%
5.3%
Q2 25
6.3%
10.4%
Q1 25
16.8%
9.3%
Q4 24
16.7%
9.0%
Q3 24
6.1%
5.2%
Q2 24
5.7%
9.3%
Q1 24
17.8%
8.4%
EPS (diluted)
BKH
BKH
OSIS
OSIS
Q4 25
$1.39
$2.22
Q3 25
$0.34
$1.18
Q2 25
$0.38
$3.04
Q1 25
$1.87
$2.40
Q4 24
$1.36
$2.22
Q3 24
$0.35
$1.05
Q2 24
$0.33
$2.57
Q1 24
$1.87
$1.95

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
BKH
BKH
OSIS
OSIS
Cash + ST InvestmentsLiquidity on hand
$182.8M
$336.7M
Total DebtLower is stronger
$1.0B
Stockholders' EquityBook value
$3.8B
$845.5M
Total Assets
$10.9B
$2.5B
Debt / EquityLower = less leverage
1.19×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BKH
BKH
OSIS
OSIS
Q4 25
$182.8M
$336.7M
Q3 25
$21.1M
$124.4M
Q2 25
$8.1M
$106.4M
Q1 25
$6.6M
$95.8M
Q4 24
$16.1M
$101.6M
Q3 24
$12.5M
$85.1M
Q2 24
$624.8M
$95.4M
Q1 24
$123.0M
$101.4M
Total Debt
BKH
BKH
OSIS
OSIS
Q4 25
$1.0B
Q3 25
$442.2M
Q2 25
$471.6M
Q1 25
$473.2M
Q4 24
$474.8M
Q3 24
$476.3M
Q2 24
$137.6M
Q1 24
Stockholders' Equity
BKH
BKH
OSIS
OSIS
Q4 25
$3.8B
$845.5M
Q3 25
$3.8B
$946.0M
Q2 25
$3.6B
$951.1M
Q1 25
$3.6B
$879.3M
Q4 24
$3.5B
$825.8M
Q3 24
$3.4B
$786.5M
Q2 24
$3.4B
$863.5M
Q1 24
$3.3B
$813.4M
Total Assets
BKH
BKH
OSIS
OSIS
Q4 25
$10.9B
$2.5B
Q3 25
$10.3B
$2.3B
Q2 25
$10.1B
$2.2B
Q1 25
$10.1B
$2.1B
Q4 24
$10.0B
$2.1B
Q3 24
$9.7B
$2.1B
Q2 24
$10.2B
$1.9B
Q1 24
$9.7B
$1.8B
Debt / Equity
BKH
BKH
OSIS
OSIS
Q4 25
1.19×
Q3 25
0.47×
Q2 25
0.50×
Q1 25
0.54×
Q4 24
0.57×
Q3 24
0.61×
Q2 24
0.16×
Q1 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
BKH
BKH
OSIS
OSIS
Operating Cash FlowLast quarter
$168.1M
$62.2M
Free Cash FlowOCF − Capex
$-101.5M
$55.5M
FCF MarginFCF / Revenue
-16.3%
12.0%
Capex IntensityCapex / Revenue
43.3%
1.4%
Cash ConversionOCF / Net Profit
1.60×
1.61×
TTM Free Cash FlowTrailing 4 quarters
$-146.4M
$137.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BKH
BKH
OSIS
OSIS
Q4 25
$168.1M
$62.2M
Q3 25
$88.9M
$17.1M
Q2 25
$188.6M
$562.0K
Q1 25
$227.8M
$81.6M
Q4 24
$153.2M
$52.5M
Q3 24
$102.1M
$-37.2M
Q2 24
$230.6M
$-29.0M
Q1 24
$233.4M
$-52.1M
Free Cash Flow
BKH
BKH
OSIS
OSIS
Q4 25
$-101.5M
$55.5M
Q3 25
$-89.5M
$10.1M
Q2 25
$-30.3M
$-5.6M
Q1 25
$74.9M
$77.1M
Q4 24
$-60.5M
$47.1M
Q3 24
$-86.0M
$-44.9M
Q2 24
$64.4M
$-37.5M
Q1 24
$57.2M
$-57.0M
FCF Margin
BKH
BKH
OSIS
OSIS
Q4 25
-16.3%
12.0%
Q3 25
-20.9%
2.6%
Q2 25
-7.0%
-1.1%
Q1 25
9.4%
17.4%
Q4 24
-10.3%
11.2%
Q3 24
-21.6%
-13.0%
Q2 24
16.2%
-7.8%
Q1 24
8.0%
-14.1%
Capex Intensity
BKH
BKH
OSIS
OSIS
Q4 25
43.3%
1.4%
Q3 25
41.7%
1.8%
Q2 25
50.2%
1.2%
Q1 25
19.1%
1.0%
Q4 24
36.5%
1.3%
Q3 24
47.2%
2.2%
Q2 24
41.9%
1.8%
Q1 24
24.6%
1.2%
Cash Conversion
BKH
BKH
OSIS
OSIS
Q4 25
1.60×
1.61×
Q3 25
3.57×
0.83×
Q2 25
6.86×
0.01×
Q1 25
1.70×
1.98×
Q4 24
1.56×
1.39×
Q3 24
4.18×
-2.07×
Q2 24
10.11×
-0.65×
Q1 24
1.82×
-1.53×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

BKH
BKH

Gas Utilities$391.1M63%
Retail Electric Natural Gasand Coal$189.7M30%
Other$15.3M2%
Market Off System Sales$13.6M2%
Transferred At Point In Time$8.9M1%
Wholesale$4.9M1%
Inter Segment Revenues$2.4M0%

OSIS
OSIS

Security Division$334.7M72%
Optoelectronics And Manufacturing Division$92.8M20%
Healthcare Division$36.5M8%

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