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Side-by-side financial comparison of BLACK HILLS CORP (BKH) and Proto Labs Inc (PRLB). Click either name above to swap in a different company.

BLACK HILLS CORP is the larger business by last-quarter revenue ($241.6M vs $139.3M, roughly 1.7× Proto Labs Inc). BLACK HILLS CORP runs the higher net margin — 55.1% vs 5.8%, a 49.3% gap on every dollar of revenue. On growth, Proto Labs Inc posted the faster year-over-year revenue change (10.4% vs -3.0%). Over the past eight quarters, Proto Labs Inc's revenue compounded faster (5.3% CAGR vs -22.0%).

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.

Protolabs is a company that provides rapid manufacturing of 3D printed, CNC-machined, sheet metal, and injection-molded custom parts for prototyping and production. Markets like medical devices, aerospace, electronics, appliances, automotive and consumer products use these parts. Protolabs' headquarters are located in Maple Plain, Minnesota, with Minnesota-based manufacturing facilities in Plymouth, Brooklyn Park, and Rosemount, along with additional facilities in Nashua, New Hampshire and Ca...

BKH vs PRLB — Head-to-Head

Bigger by revenue
BKH
BKH
1.7× larger
BKH
$241.6M
$139.3M
PRLB
Growing faster (revenue YoY)
PRLB
PRLB
+13.4% gap
PRLB
10.4%
-3.0%
BKH
Higher net margin
BKH
BKH
49.3% more per $
BKH
55.1%
5.8%
PRLB
Faster 2-yr revenue CAGR
PRLB
PRLB
Annualised
PRLB
5.3%
-22.0%
BKH

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
BKH
BKH
PRLB
PRLB
Revenue
$241.6M
$139.3M
Net Profit
$133.1M
$8.1M
Gross Margin
45.6%
Operating Margin
83.6%
7.1%
Net Margin
55.1%
5.8%
Revenue YoY
-3.0%
10.4%
Net Profit YoY
-2.4%
125.4%
EPS (diluted)
$1.73
$0.29

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
PRLB
PRLB
Q1 26
$241.6M
$139.3M
Q4 25
$622.7M
$136.5M
Q3 25
$427.4M
$135.4M
Q2 25
$435.7M
$135.1M
Q1 25
$800.4M
$126.2M
Q4 24
$585.1M
$121.8M
Q3 24
$398.6M
$125.6M
Q2 24
$397.1M
$125.6M
Net Profit
BKH
BKH
PRLB
PRLB
Q1 26
$133.1M
$8.1M
Q4 25
$104.9M
Q3 25
$24.9M
$7.2M
Q2 25
$27.5M
$4.4M
Q1 25
$134.3M
$3.6M
Q4 24
$98.0M
Q3 24
$24.4M
$7.2M
Q2 24
$22.8M
$4.5M
Gross Margin
BKH
BKH
PRLB
PRLB
Q1 26
45.6%
Q4 25
44.2%
Q3 25
45.3%
Q2 25
44.3%
Q1 25
44.1%
Q4 24
42.7%
Q3 24
45.6%
Q2 24
45.0%
Operating Margin
BKH
BKH
PRLB
PRLB
Q1 26
83.6%
7.1%
Q4 25
27.5%
5.0%
Q3 25
18.4%
6.5%
Q2 25
18.9%
3.7%
Q1 25
25.6%
3.6%
Q4 24
27.9%
-1.2%
Q3 24
19.0%
6.8%
Q2 24
17.8%
4.8%
Net Margin
BKH
BKH
PRLB
PRLB
Q1 26
55.1%
5.8%
Q4 25
16.8%
Q3 25
5.8%
5.3%
Q2 25
6.3%
3.3%
Q1 25
16.8%
2.9%
Q4 24
16.7%
Q3 24
6.1%
5.7%
Q2 24
5.7%
3.6%
EPS (diluted)
BKH
BKH
PRLB
PRLB
Q1 26
$1.73
$0.29
Q4 25
$1.39
$0.25
Q3 25
$0.34
$0.30
Q2 25
$0.38
$0.18
Q1 25
$1.87
$0.15
Q4 24
$1.36
$-0.01
Q3 24
$0.35
$0.29
Q2 24
$0.33
$0.18

Balance Sheet & Financial Strength

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

Metric
BKH
BKH
PRLB
PRLB
Cash + ST InvestmentsLiquidity on hand
$124.0M
Total DebtLower is stronger
Stockholders' EquityBook value
$683.1M
Total Assets
$778.6M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BKH
BKH
PRLB
PRLB
Q1 26
$124.0M
Q4 25
$182.8M
$128.1M
Q3 25
$21.1M
$119.2M
Q2 25
$8.1M
$103.2M
Q1 25
$6.6M
$96.8M
Q4 24
$16.1M
$103.1M
Q3 24
$12.5M
$100.5M
Q2 24
$624.8M
$112.9M
Stockholders' Equity
BKH
BKH
PRLB
PRLB
Q1 26
$683.1M
Q4 25
$3.8B
$673.9M
Q3 25
$3.8B
$664.7M
Q2 25
$3.6B
$664.7M
Q1 25
$3.6B
$656.8M
Q4 24
$3.5B
$670.2M
Q3 24
$3.4B
$680.0M
Q2 24
$3.4B
$685.2M
Total Assets
BKH
BKH
PRLB
PRLB
Q1 26
$778.6M
Q4 25
$10.9B
$763.4M
Q3 25
$10.3B
$756.9M
Q2 25
$10.1B
$743.3M
Q1 25
$10.1B
$737.5M
Q4 24
$10.0B
$743.5M
Q3 24
$9.7B
$753.8M
Q2 24
$10.2B
$758.2M

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
PRLB
PRLB
Operating Cash FlowLast quarter
$17.5M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
2.16×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BKH
BKH
PRLB
PRLB
Q1 26
$17.5M
Q4 25
$168.1M
$16.5M
Q3 25
$88.9M
$29.1M
Q2 25
$188.6M
$10.6M
Q1 25
$227.8M
$18.4M
Q4 24
$153.2M
$17.3M
Q3 24
$102.1M
$24.8M
Q2 24
$230.6M
$14.4M
Free Cash Flow
BKH
BKH
PRLB
PRLB
Q1 26
Q4 25
$-101.5M
$8.4M
Q3 25
$-89.5M
$25.0M
Q2 25
$-30.3M
$9.1M
Q1 25
$74.9M
$17.1M
Q4 24
$-60.5M
$16.5M
Q3 24
$-86.0M
$23.2M
Q2 24
$64.4M
$10.2M
FCF Margin
BKH
BKH
PRLB
PRLB
Q1 26
Q4 25
-16.3%
6.2%
Q3 25
-20.9%
18.5%
Q2 25
-7.0%
6.7%
Q1 25
9.4%
13.6%
Q4 24
-10.3%
13.5%
Q3 24
-21.6%
18.5%
Q2 24
16.2%
8.2%
Capex Intensity
BKH
BKH
PRLB
PRLB
Q1 26
Q4 25
43.3%
5.9%
Q3 25
41.7%
3.0%
Q2 25
50.2%
1.1%
Q1 25
19.1%
1.0%
Q4 24
36.5%
0.7%
Q3 24
47.2%
1.2%
Q2 24
41.9%
3.3%
Cash Conversion
BKH
BKH
PRLB
PRLB
Q1 26
2.16×
Q4 25
1.60×
Q3 25
3.57×
4.03×
Q2 25
6.86×
2.39×
Q1 25
1.70×
5.11×
Q4 24
1.56×
Q3 24
4.18×
3.44×
Q2 24
10.11×
3.18×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BKH
BKH

Segment breakdown not available.

PRLB
PRLB

CNC Machining$63.2M45%
Injection Molding$51.1M37%
3D Printing$20.5M15%
Sheet Metal$4.4M3%
Other Revenue$207.0K0%

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