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Side-by-side financial comparison of ATN International, Inc. (ATNI) 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 $169.1M, roughly 1.9× ATN International, Inc.). FIRST INTERSTATE BANCSYSTEM INC runs the higher net margin — 34.8% vs -4.0%, a 38.8% gap on every dollar of revenue. On growth, FIRST INTERSTATE BANCSYSTEM INC posted the faster year-over-year revenue change (19.8% vs 1.2%). Over the past eight quarters, FIRST INTERSTATE BANCSYSTEM INC's revenue compounded faster (13.7% CAGR vs -1.1%).

ATN International, Inc. (ATN) formerly known as Atlantic Tele-Network, Inc., is a publicly traded telecommunications company that is headquartered in Beverly, Massachusetts. It operates digital wireless, wireline, and both terrestrial and submarine fiber optic networks, serving markets that are geographically separated and technically challenging, such as the plains, deserts, and mountainous areas of the United States.

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.

ATNI vs FIBK — Head-to-Head

Bigger by revenue
FIBK
FIBK
1.9× larger
FIBK
$313.0M
$169.1M
ATNI
Growing faster (revenue YoY)
FIBK
FIBK
+18.6% gap
FIBK
19.8%
1.2%
ATNI
Higher net margin
FIBK
FIBK
38.8% more per $
FIBK
34.8%
-4.0%
ATNI
Faster 2-yr revenue CAGR
FIBK
FIBK
Annualised
FIBK
13.7%
-1.1%
ATNI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ATNI
ATNI
FIBK
FIBK
Revenue
$169.1M
$313.0M
Net Profit
$-6.8M
$108.8M
Gross Margin
Operating Margin
9.3%
44.5%
Net Margin
-4.0%
34.8%
Revenue YoY
1.2%
19.8%
Net Profit YoY
-261.7%
108.8%
EPS (diluted)
$-0.31
$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
ATNI
ATNI
FIBK
FIBK
Q4 25
$169.1M
$313.0M
Q3 25
$166.9M
$250.5M
Q2 25
$166.5M
$248.3M
Q1 25
$164.6M
$247.0M
Q4 24
$167.1M
$261.3M
Q3 24
$164.6M
$251.9M
Q2 24
$169.4M
$244.3M
Q1 24
$172.9M
$242.2M
Net Profit
ATNI
ATNI
FIBK
FIBK
Q4 25
$-6.8M
$108.8M
Q3 25
$3.9M
$71.4M
Q2 25
$-9.3M
$71.7M
Q1 25
$-11.4M
$50.2M
Q4 24
$4.2M
$52.1M
Q3 24
$-39.5M
$55.5M
Q2 24
$11.3M
$60.0M
Q1 24
$-7.9M
$58.4M
Operating Margin
ATNI
ATNI
FIBK
FIBK
Q4 25
9.3%
44.5%
Q3 25
5.9%
37.0%
Q2 25
0.1%
37.7%
Q1 25
1.6%
26.9%
Q4 24
5.2%
25.5%
Q3 24
-23.3%
28.9%
Q2 24
14.4%
32.1%
Q1 24
2.6%
31.7%
Net Margin
ATNI
ATNI
FIBK
FIBK
Q4 25
-4.0%
34.8%
Q3 25
2.4%
28.5%
Q2 25
-5.6%
28.9%
Q1 25
-6.9%
20.3%
Q4 24
2.5%
19.9%
Q3 24
-24.0%
22.0%
Q2 24
6.7%
24.6%
Q1 24
-4.6%
24.1%
EPS (diluted)
ATNI
ATNI
FIBK
FIBK
Q4 25
$-0.31
$1.07
Q3 25
$0.18
$0.69
Q2 25
$-0.56
$0.69
Q1 25
$-0.69
$0.49
Q4 24
$0.16
$0.50
Q3 24
$-2.26
$0.54
Q2 24
$0.50
$0.58
Q1 24
$-0.50
$0.57

Balance Sheet & Financial Strength

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

Metric
ATNI
ATNI
FIBK
FIBK
Cash + ST InvestmentsLiquidity on hand
$102.9M
Total DebtLower is stronger
$565.2M
$146.3M
Stockholders' EquityBook value
$444.3M
$3.4B
Total Assets
$1.7B
$26.6B
Debt / EquityLower = less leverage
1.27×
0.04×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ATNI
ATNI
FIBK
FIBK
Q4 25
$102.9M
Q3 25
$106.6M
Q2 25
$99.4M
Q1 25
$83.8M
Q4 24
$73.7M
Q3 24
$101.0M
Q2 24
$59.2M
Q1 24
$56.8M
Total Debt
ATNI
ATNI
FIBK
FIBK
Q4 25
$565.2M
$146.3M
Q3 25
$579.6M
$146.2M
Q2 25
$583.4M
$252.0M
Q1 25
$562.4M
Q4 24
$557.4M
$132.2M
Q3 24
$568.9M
$137.3M
Q2 24
$540.8M
$383.4M
Q1 24
$541.3M
$370.8M
Stockholders' Equity
ATNI
ATNI
FIBK
FIBK
Q4 25
$444.3M
$3.4B
Q3 25
$452.3M
$3.4B
Q2 25
$458.7M
$3.4B
Q1 25
$473.3M
$3.4B
Q4 24
$489.5M
$3.3B
Q3 24
$490.8M
$3.4B
Q2 24
$526.8M
$3.2B
Q1 24
$530.0M
$3.2B
Total Assets
ATNI
ATNI
FIBK
FIBK
Q4 25
$1.7B
$26.6B
Q3 25
$1.7B
$27.3B
Q2 25
$1.7B
$27.6B
Q1 25
$1.7B
$28.3B
Q4 24
$1.7B
$29.1B
Q3 24
$1.8B
$29.6B
Q2 24
$1.8B
$30.3B
Q1 24
$1.8B
$30.1B
Debt / Equity
ATNI
ATNI
FIBK
FIBK
Q4 25
1.27×
0.04×
Q3 25
1.28×
0.04×
Q2 25
1.27×
0.07×
Q1 25
1.19×
Q4 24
1.14×
0.04×
Q3 24
1.16×
0.04×
Q2 24
1.03×
0.12×
Q1 24
1.02×
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
ATNI
ATNI
FIBK
FIBK
Operating Cash FlowLast quarter
$36.2M
$305.6M
Free Cash FlowOCF − Capex
$7.1M
FCF MarginFCF / Revenue
4.2%
Capex IntensityCapex / Revenue
17.2%
Cash ConversionOCF / Net Profit
2.81×
TTM Free Cash FlowTrailing 4 quarters
$43.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ATNI
ATNI
FIBK
FIBK
Q4 25
$36.2M
$305.6M
Q3 25
$37.8M
$91.7M
Q2 25
$23.9M
$68.1M
Q1 25
$35.9M
$78.5M
Q4 24
$30.5M
$355.0M
Q3 24
$39.0M
$89.9M
Q2 24
$35.2M
$82.3M
Q1 24
$23.2M
$87.6M
Free Cash Flow
ATNI
ATNI
FIBK
FIBK
Q4 25
$7.1M
Q3 25
$18.9M
Q2 25
$2.8M
Q1 25
$15.1M
Q4 24
$5.8M
Q3 24
$15.2M
Q2 24
$9.4M
Q1 24
$-12.8M
FCF Margin
ATNI
ATNI
FIBK
FIBK
Q4 25
4.2%
Q3 25
11.3%
Q2 25
1.7%
Q1 25
9.2%
Q4 24
3.5%
Q3 24
9.2%
Q2 24
5.6%
Q1 24
-7.4%
Capex Intensity
ATNI
ATNI
FIBK
FIBK
Q4 25
17.2%
Q3 25
11.3%
Q2 25
12.7%
Q1 25
12.7%
Q4 24
14.8%
Q3 24
14.5%
Q2 24
15.2%
Q1 24
20.8%
Cash Conversion
ATNI
ATNI
FIBK
FIBK
Q4 25
2.81×
Q3 25
9.62×
1.28×
Q2 25
0.95×
Q1 25
1.56×
Q4 24
7.24×
6.81×
Q3 24
1.62×
Q2 24
3.11×
1.37×
Q1 24
1.50×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ATNI
ATNI

Us Telecommunications$86.9M51%
Fixed Consumer$42.8M25%
Fixed Business$18.5M11%
Transferred At Point In Time$7.2M4%
Mobility Business$5.3M3%
Other Revenue$4.2M2%
Other Communication Services$3.2M2%
Managed Services$1.2M1%
Construction Services$448.0K0%

FIBK
FIBK

Segment breakdown not available.

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