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Side-by-side financial comparison of CALIFORNIA WATER SERVICE GROUP (CWT) and FIRST INTERSTATE BANCSYSTEM INC (FIBK). Click either name above to swap in a different company.

FIRST INTERSTATE BANCSYSTEM INC is the larger business by last-quarter revenue ($313.0M vs $210.7M, roughly 1.5× CALIFORNIA WATER SERVICE GROUP). FIRST INTERSTATE BANCSYSTEM INC runs the higher net margin — 34.8% vs 5.4%, a 29.3% gap on every dollar of revenue. On growth, FIRST INTERSTATE BANCSYSTEM INC posted the faster year-over-year revenue change (19.8% vs -3.3%). Over the past eight quarters, CALIFORNIA WATER SERVICE GROUP's revenue compounded faster (16.6% CAGR vs 13.7%).

California Water Service Group (CWSG) is an American public utility company providing drinking water and wastewater services. It is the third-largest investor-owned publicly traded water utility in the United States, serving roughly two million people through its subsidiary companies in California, Hawaii, New Mexico and Washington. CWSG was formed in 1997 as a new holding company for California Water Service to expand into other states regulated by their own public utilities commissions, and...

First Interstate BancSystem, Inc. is a financial holding company headquartered in Billings, Montana. It is the parent company of First Interstate Bank, a community bank with locations throughout 14 states within the Western and Midwestern United States. It is the largest bank based in Montana, as measured by total assets.

CWT vs FIBK — Head-to-Head

Bigger by revenue
FIBK
FIBK
1.5× larger
FIBK
$313.0M
$210.7M
CWT
Growing faster (revenue YoY)
FIBK
FIBK
+23.1% gap
FIBK
19.8%
-3.3%
CWT
Higher net margin
FIBK
FIBK
29.3% more per $
FIBK
34.8%
5.4%
CWT
Faster 2-yr revenue CAGR
CWT
CWT
Annualised
CWT
16.6%
13.7%
FIBK

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CWT
CWT
FIBK
FIBK
Revenue
$210.7M
$313.0M
Net Profit
$11.5M
$108.8M
Gross Margin
Operating Margin
12.2%
44.5%
Net Margin
5.4%
34.8%
Revenue YoY
-3.3%
19.8%
Net Profit YoY
-41.0%
108.8%
EPS (diluted)
$0.19
$1.07

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
CWT
CWT
FIBK
FIBK
Q4 25
$210.7M
$313.0M
Q3 25
$314.1M
$250.5M
Q2 25
$256.2M
$248.3M
Q1 25
$182.7M
$247.0M
Q4 24
$217.8M
$261.3M
Q3 24
$306.2M
$251.9M
Q2 24
$226.7M
$244.3M
Q1 24
$154.9M
$242.2M
Net Profit
CWT
CWT
FIBK
FIBK
Q4 25
$11.5M
$108.8M
Q3 25
$61.2M
$71.4M
Q2 25
$42.2M
$71.7M
Q1 25
$13.3M
$50.2M
Q4 24
$19.5M
$52.1M
Q3 24
$60.7M
$55.5M
Q2 24
$40.6M
$60.0M
Q1 24
$69.9M
$58.4M
Operating Margin
CWT
CWT
FIBK
FIBK
Q4 25
12.2%
44.5%
Q3 25
22.5%
37.0%
Q2 25
20.2%
37.7%
Q1 25
12.2%
26.9%
Q4 24
14.8%
25.5%
Q3 24
21.8%
28.9%
Q2 24
21.2%
32.1%
Q1 24
50.3%
31.7%
Net Margin
CWT
CWT
FIBK
FIBK
Q4 25
5.4%
34.8%
Q3 25
19.5%
28.5%
Q2 25
16.5%
28.9%
Q1 25
7.3%
20.3%
Q4 24
8.9%
19.9%
Q3 24
19.8%
22.0%
Q2 24
17.9%
24.6%
Q1 24
45.1%
24.1%
EPS (diluted)
CWT
CWT
FIBK
FIBK
Q4 25
$0.19
$1.07
Q3 25
$1.03
$0.69
Q2 25
$0.71
$0.69
Q1 25
$0.22
$0.49
Q4 24
$0.31
$0.50
Q3 24
$1.03
$0.54
Q2 24
$0.70
$0.58
Q1 24
$1.21
$0.57

Balance Sheet & Financial Strength

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

Metric
CWT
CWT
FIBK
FIBK
Cash + ST InvestmentsLiquidity on hand
$51.8M
Total DebtLower is stronger
$1.5B
$146.3M
Stockholders' EquityBook value
$1.7B
$3.4B
Total Assets
$5.7B
$26.6B
Debt / EquityLower = less leverage
0.87×
0.04×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CWT
CWT
FIBK
FIBK
Q4 25
$51.8M
Q3 25
$76.0M
Q2 25
$50.5M
Q1 25
$44.5M
Q4 24
$50.1M
Q3 24
$59.6M
Q2 24
$37.3M
Q1 24
$42.8M
Total Debt
CWT
CWT
FIBK
FIBK
Q4 25
$1.5B
$146.3M
Q3 25
$1.1B
$146.2M
Q2 25
$1.1B
$252.0M
Q1 25
$1.1B
Q4 24
$1.1B
$132.2M
Q3 24
$137.3M
Q2 24
$383.4M
Q1 24
$370.8M
Stockholders' Equity
CWT
CWT
FIBK
FIBK
Q4 25
$1.7B
$3.4B
Q3 25
$1.7B
$3.4B
Q2 25
$1.7B
$3.4B
Q1 25
$1.6B
$3.4B
Q4 24
$1.6B
$3.3B
Q3 24
$1.6B
$3.4B
Q2 24
$1.5B
$3.2B
Q1 24
$1.5B
$3.2B
Total Assets
CWT
CWT
FIBK
FIBK
Q4 25
$5.7B
$26.6B
Q3 25
$5.5B
$27.3B
Q2 25
$5.4B
$27.6B
Q1 25
$5.3B
$28.3B
Q4 24
$5.2B
$29.1B
Q3 24
$5.0B
$29.6B
Q2 24
$4.9B
$30.3B
Q1 24
$4.8B
$30.1B
Debt / Equity
CWT
CWT
FIBK
FIBK
Q4 25
0.87×
0.04×
Q3 25
0.65×
0.04×
Q2 25
0.67×
0.07×
Q1 25
0.68×
Q4 24
0.67×
0.04×
Q3 24
0.04×
Q2 24
0.12×
Q1 24
0.12×

Cash Flow & Capital Efficiency

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

Metric
CWT
CWT
FIBK
FIBK
Operating Cash FlowLast quarter
$47.9M
$305.6M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
4.17×
2.81×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CWT
CWT
FIBK
FIBK
Q4 25
$47.9M
$305.6M
Q3 25
$167.3M
$91.7M
Q2 25
$48.9M
$68.1M
Q1 25
$38.4M
$78.5M
Q4 24
$68.1M
$355.0M
Q3 24
$101.8M
$89.9M
Q2 24
$94.4M
$82.3M
Q1 24
$26.5M
$87.6M
Cash Conversion
CWT
CWT
FIBK
FIBK
Q4 25
4.17×
2.81×
Q3 25
2.73×
1.28×
Q2 25
1.16×
0.95×
Q1 25
2.88×
1.56×
Q4 24
3.50×
6.81×
Q3 24
1.68×
1.62×
Q2 24
2.33×
1.37×
Q1 24
0.38×
1.50×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CWT
CWT

Residential$133.2M63%
Business$47.7M23%
Public Authorities$13.4M6%
Industrial$6.9M3%
Non Regulated Services$4.8M2%
Other Non Regulated Service$1.2M1%

FIBK
FIBK

Segment breakdown not available.

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