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Side-by-side financial comparison of Apellis Pharmaceuticals, Inc. (APLS) 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 $199.9M, roughly 1.6× Apellis Pharmaceuticals, Inc.). FIRST INTERSTATE BANCSYSTEM INC runs the higher net margin — 34.8% vs -29.5%, a 64.2% gap on every dollar of revenue. On growth, FIRST INTERSTATE BANCSYSTEM INC posted the faster year-over-year revenue change (19.8% vs -5.9%). Over the past eight quarters, FIRST INTERSTATE BANCSYSTEM INC's revenue compounded faster (13.7% CAGR vs 7.7%).

Apellis Pharmaceuticals is a clinical-stage biopharmaceutical company focused on developing targeted therapies that modulate the complement system to address serious unmet medical needs. Its core products target ophthalmic conditions like geographic atrophy secondary to age-related macular degeneration, as well as rare hematological and autoimmune disorders, with primary operations in the United States and European markets.

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.

APLS vs FIBK — Head-to-Head

Bigger by revenue
FIBK
FIBK
1.6× larger
FIBK
$313.0M
$199.9M
APLS
Growing faster (revenue YoY)
FIBK
FIBK
+25.7% gap
FIBK
19.8%
-5.9%
APLS
Higher net margin
FIBK
FIBK
64.2% more per $
FIBK
34.8%
-29.5%
APLS
Faster 2-yr revenue CAGR
FIBK
FIBK
Annualised
FIBK
13.7%
7.7%
APLS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
APLS
APLS
FIBK
FIBK
Revenue
$199.9M
$313.0M
Net Profit
$-59.0M
$108.8M
Gross Margin
Operating Margin
-25.6%
44.5%
Net Margin
-29.5%
34.8%
Revenue YoY
-5.9%
19.8%
Net Profit YoY
-62.2%
108.8%
EPS (diluted)
$-0.40
$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
APLS
APLS
FIBK
FIBK
Q4 25
$199.9M
$313.0M
Q3 25
$458.6M
$250.5M
Q2 25
$178.5M
$248.3M
Q1 25
$166.8M
$247.0M
Q4 24
$212.5M
$261.3M
Q3 24
$196.8M
$251.9M
Q2 24
$199.7M
$244.3M
Q1 24
$172.3M
$242.2M
Net Profit
APLS
APLS
FIBK
FIBK
Q4 25
$-59.0M
$108.8M
Q3 25
$215.7M
$71.4M
Q2 25
$-42.2M
$71.7M
Q1 25
$-92.2M
$50.2M
Q4 24
$-36.4M
$52.1M
Q3 24
$-57.4M
$55.5M
Q2 24
$-37.7M
$60.0M
Q1 24
$-66.4M
$58.4M
Operating Margin
APLS
APLS
FIBK
FIBK
Q4 25
-25.6%
44.5%
Q3 25
48.7%
37.0%
Q2 25
-18.6%
37.7%
Q1 25
-50.0%
26.9%
Q4 24
-12.3%
25.5%
Q3 24
-24.0%
28.9%
Q2 24
-14.7%
32.1%
Q1 24
-36.0%
31.7%
Net Margin
APLS
APLS
FIBK
FIBK
Q4 25
-29.5%
34.8%
Q3 25
47.0%
28.5%
Q2 25
-23.6%
28.9%
Q1 25
-55.3%
20.3%
Q4 24
-17.1%
19.9%
Q3 24
-29.2%
22.0%
Q2 24
-18.9%
24.6%
Q1 24
-38.5%
24.1%
EPS (diluted)
APLS
APLS
FIBK
FIBK
Q4 25
$-0.40
$1.07
Q3 25
$1.67
$0.69
Q2 25
$-0.33
$0.69
Q1 25
$-0.74
$0.49
Q4 24
$-0.30
$0.50
Q3 24
$-0.46
$0.54
Q2 24
$-0.30
$0.58
Q1 24
$-0.54
$0.57

Balance Sheet & Financial Strength

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

Metric
APLS
APLS
FIBK
FIBK
Cash + ST InvestmentsLiquidity on hand
$466.2M
Total DebtLower is stronger
$146.3M
Stockholders' EquityBook value
$370.1M
$3.4B
Total Assets
$1.1B
$26.6B
Debt / EquityLower = less leverage
0.04×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
APLS
APLS
FIBK
FIBK
Q4 25
$466.2M
Q3 25
$479.2M
Q2 25
$370.0M
Q1 25
$358.4M
Q4 24
$411.3M
Q3 24
$396.9M
Q2 24
$360.1M
Q1 24
$325.9M
Total Debt
APLS
APLS
FIBK
FIBK
Q4 25
$146.3M
Q3 25
$146.2M
Q2 25
$252.0M
Q1 25
Q4 24
$132.2M
Q3 24
$137.3M
Q2 24
$383.4M
Q1 24
$93.1M
$370.8M
Stockholders' Equity
APLS
APLS
FIBK
FIBK
Q4 25
$370.1M
$3.4B
Q3 25
$401.2M
$3.4B
Q2 25
$156.3M
$3.4B
Q1 25
$164.2M
$3.4B
Q4 24
$228.5M
$3.3B
Q3 24
$237.1M
$3.4B
Q2 24
$264.3M
$3.2B
Q1 24
$266.7M
$3.2B
Total Assets
APLS
APLS
FIBK
FIBK
Q4 25
$1.1B
$26.6B
Q3 25
$1.1B
$27.3B
Q2 25
$821.4M
$27.6B
Q1 25
$807.3M
$28.3B
Q4 24
$885.1M
$29.1B
Q3 24
$901.9M
$29.6B
Q2 24
$904.5M
$30.3B
Q1 24
$831.9M
$30.1B
Debt / Equity
APLS
APLS
FIBK
FIBK
Q4 25
0.04×
Q3 25
0.04×
Q2 25
0.07×
Q1 25
Q4 24
0.04×
Q3 24
0.04×
Q2 24
0.12×
Q1 24
0.35×
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
APLS
APLS
FIBK
FIBK
Operating Cash FlowLast quarter
$-14.2M
$305.6M
Free Cash FlowOCF − Capex
$-14.3M
FCF MarginFCF / Revenue
-7.1%
Capex IntensityCapex / Revenue
0.1%
Cash ConversionOCF / Net Profit
2.81×
TTM Free Cash FlowTrailing 4 quarters
$45.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
APLS
APLS
FIBK
FIBK
Q4 25
$-14.2M
$305.6M
Q3 25
$108.5M
$91.7M
Q2 25
$4.4M
$68.1M
Q1 25
$-53.4M
$78.5M
Q4 24
$19.4M
$355.0M
Q3 24
$34.1M
$89.9M
Q2 24
$-8.3M
$82.3M
Q1 24
$-133.0M
$87.6M
Free Cash Flow
APLS
APLS
FIBK
FIBK
Q4 25
$-14.3M
Q3 25
$108.3M
Q2 25
$4.4M
Q1 25
$-53.4M
Q4 24
$19.3M
Q3 24
Q2 24
$-8.4M
Q1 24
$-133.3M
FCF Margin
APLS
APLS
FIBK
FIBK
Q4 25
-7.1%
Q3 25
23.6%
Q2 25
2.5%
Q1 25
-32.0%
Q4 24
9.1%
Q3 24
Q2 24
-4.2%
Q1 24
-77.3%
Capex Intensity
APLS
APLS
FIBK
FIBK
Q4 25
0.1%
Q3 25
0.0%
Q2 25
0.0%
Q1 25
0.0%
Q4 24
0.0%
Q3 24
0.0%
Q2 24
0.0%
Q1 24
0.2%
Cash Conversion
APLS
APLS
FIBK
FIBK
Q4 25
2.81×
Q3 25
0.50×
1.28×
Q2 25
0.95×
Q1 25
1.56×
Q4 24
6.81×
Q3 24
1.62×
Q2 24
1.37×
Q1 24
1.50×

Financial Flow Comparison

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

Revenue Breakdown by Segment

APLS
APLS

Syfovre$155.2M78%
Empaveli Pegcetacoplan$35.1M18%
Licensing And Other Revenue$9.6M5%

FIBK
FIBK

Segment breakdown not available.

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