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Side-by-side financial comparison of IONIS PHARMACEUTICALS INC (IONS) and STURM RUGER & CO INC (RGR). Click either name above to swap in a different company.

IONIS PHARMACEUTICALS INC is the larger business by last-quarter revenue ($203.3M vs $151.1M, roughly 1.3× STURM RUGER & CO INC). On growth, STURM RUGER & CO INC posted the faster year-over-year revenue change (3.6% vs -10.3%). STURM RUGER & CO INC produced more free cash flow last quarter ($12.3M vs $-159.0M). Over the past eight quarters, IONIS PHARMACEUTICALS INC's revenue compounded faster (30.4% CAGR vs 5.1%).

Ionis Pharmaceuticals, Inc. is a biotechnology company that specializes in discovering and developing antisense therapy, as well as RNA interference and CRISPR therapeutics. The company was founded in 1989 is based in Carlsbad, California. The company was previously known as Isis Pharmaceuticals until December 2015.

Sturm, Ruger & Company, Inc., better known by the shortened name Ruger, is an American firearm manufacturing company based in Southport, Connecticut, with production facilities also in Newport, New Hampshire; Mayodan, North Carolina; and Prescott, Arizona. The company was founded in 1949 by Alexander McCormick Sturm and William B. Ruger and has been publicly traded since 1969.

IONS vs RGR — Head-to-Head

Bigger by revenue
IONS
IONS
1.3× larger
IONS
$203.3M
$151.1M
RGR
Growing faster (revenue YoY)
RGR
RGR
+13.9% gap
RGR
3.6%
-10.3%
IONS
More free cash flow
RGR
RGR
$171.3M more FCF
RGR
$12.3M
$-159.0M
IONS
Faster 2-yr revenue CAGR
IONS
IONS
Annualised
IONS
30.4%
5.1%
RGR

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
IONS
IONS
RGR
RGR
Revenue
$203.3M
$151.1M
Net Profit
$-229.4M
Gross Margin
96.1%
17.8%
Operating Margin
-105.5%
2.3%
Net Margin
-112.8%
Revenue YoY
-10.3%
3.6%
Net Profit YoY
-119.8%
EPS (diluted)
$-1.35
$0.22

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
IONS
IONS
RGR
RGR
Q4 25
$203.3M
$151.1M
Q3 25
$156.7M
$126.8M
Q2 25
$452.0M
$132.5M
Q1 25
$131.6M
$135.7M
Q4 24
$226.6M
$145.8M
Q3 24
$133.8M
$122.3M
Q2 24
$225.3M
$130.8M
Q1 24
$119.5M
$136.8M
Net Profit
IONS
IONS
RGR
RGR
Q4 25
$-229.4M
Q3 25
$-128.6M
$1.6M
Q2 25
$123.6M
$-17.2M
Q1 25
$-146.9M
$7.8M
Q4 24
$-104.3M
Q3 24
$-140.5M
$4.7M
Q2 24
$-66.3M
$8.3M
Q1 24
$-142.8M
$7.1M
Gross Margin
IONS
IONS
RGR
RGR
Q4 25
96.1%
17.8%
Q3 25
98.5%
15.1%
Q2 25
99.1%
3.9%
Q1 25
98.9%
22.0%
Q4 24
98.3%
22.8%
Q3 24
99.2%
18.5%
Q2 24
98.2%
22.3%
Q1 24
98.2%
21.5%
Operating Margin
IONS
IONS
RGR
RGR
Q4 25
-105.5%
2.3%
Q3 25
-102.2%
-2.7%
Q2 25
30.9%
-15.6%
Q1 25
-111.6%
6.2%
Q4 24
-48.9%
7.8%
Q3 24
-111.1%
3.1%
Q2 24
-29.3%
6.9%
Q1 24
-125.1%
5.5%
Net Margin
IONS
IONS
RGR
RGR
Q4 25
-112.8%
Q3 25
-82.1%
1.2%
Q2 25
27.3%
-13.0%
Q1 25
-111.6%
5.7%
Q4 24
-46.1%
Q3 24
-105.0%
3.9%
Q2 24
-29.4%
6.3%
Q1 24
-119.5%
5.2%
EPS (diluted)
IONS
IONS
RGR
RGR
Q4 25
$-1.35
$0.22
Q3 25
$-0.80
$0.10
Q2 25
$0.70
$-1.05
Q1 25
$-0.93
$0.46
Q4 24
$-0.66
$0.62
Q3 24
$-0.95
$0.28
Q2 24
$-0.45
$0.47
Q1 24
$-0.98
$0.40

Balance Sheet & Financial Strength

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

Metric
IONS
IONS
RGR
RGR
Cash + ST InvestmentsLiquidity on hand
$2.7B
$92.5M
Total DebtLower is stronger
$1.8B
Stockholders' EquityBook value
$489.1M
$283.8M
Total Assets
$3.5B
$342.0M
Debt / EquityLower = less leverage
3.71×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IONS
IONS
RGR
RGR
Q4 25
$2.7B
$92.5M
Q3 25
$2.2B
$80.8M
Q2 25
$2.3B
$101.4M
Q1 25
$2.1B
$108.3M
Q4 24
$2.3B
$105.5M
Q3 24
$2.5B
$96.0M
Q2 24
$2.1B
$105.6M
Q1 24
$2.2B
$115.3M
Total Debt
IONS
IONS
RGR
RGR
Q4 25
$1.8B
Q3 25
Q2 25
Q1 25
Q4 24
$1.3B
Q3 24
Q2 24
Q1 24
Stockholders' Equity
IONS
IONS
RGR
RGR
Q4 25
$489.1M
$283.8M
Q3 25
$618.0M
$279.6M
Q2 25
$631.7M
$289.3M
Q1 25
$475.7M
$321.5M
Q4 24
$588.4M
$319.6M
Q3 24
$662.5M
$314.9M
Q2 24
$263.7M
$321.5M
Q1 24
$296.5M
$332.0M
Total Assets
IONS
IONS
RGR
RGR
Q4 25
$3.5B
$342.0M
Q3 25
$3.0B
$342.3M
Q2 25
$3.0B
$349.5M
Q1 25
$2.8B
$379.0M
Q4 24
$3.0B
$384.0M
Q3 24
$3.1B
$373.5M
Q2 24
$2.7B
$376.7M
Q1 24
$2.8B
$385.0M
Debt / Equity
IONS
IONS
RGR
RGR
Q4 25
3.71×
Q3 25
Q2 25
Q1 25
Q4 24
2.13×
Q3 24
Q2 24
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
IONS
IONS
RGR
RGR
Operating Cash FlowLast quarter
$-137.7M
$15.5M
Free Cash FlowOCF − Capex
$-159.0M
$12.3M
FCF MarginFCF / Revenue
-78.2%
8.2%
Capex IntensityCapex / Revenue
10.5%
2.1%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-320.0M
$38.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IONS
IONS
RGR
RGR
Q4 25
$-137.7M
$15.5M
Q3 25
$-131.4M
$12.9M
Q2 25
$151.3M
$14.7M
Q1 25
$-150.8M
$11.1M
Q4 24
$-116.1M
$20.0M
Q3 24
$-115.0M
$9.4M
Q2 24
$-119.9M
$18.7M
Q1 24
$-149.9M
$7.3M
Free Cash Flow
IONS
IONS
RGR
RGR
Q4 25
$-159.0M
$12.3M
Q3 25
$-136.7M
$7.0M
Q2 25
$139.0M
$9.1M
Q1 25
$-163.4M
$10.0M
Q4 24
$-141.6M
$16.4M
Q3 24
$-124.0M
$2.6M
Q2 24
$-126.1M
$10.1M
Q1 24
$-154.4M
$5.6M
FCF Margin
IONS
IONS
RGR
RGR
Q4 25
-78.2%
8.2%
Q3 25
-87.2%
5.5%
Q2 25
30.8%
6.9%
Q1 25
-124.1%
7.4%
Q4 24
-62.5%
11.2%
Q3 24
-92.7%
2.1%
Q2 24
-56.0%
7.7%
Q1 24
-129.2%
4.1%
Capex Intensity
IONS
IONS
RGR
RGR
Q4 25
10.5%
2.1%
Q3 25
3.4%
4.6%
Q2 25
2.7%
4.2%
Q1 25
9.6%
0.8%
Q4 24
11.3%
2.5%
Q3 24
6.8%
5.5%
Q2 24
2.8%
6.6%
Q1 24
3.8%
1.3%
Cash Conversion
IONS
IONS
RGR
RGR
Q4 25
Q3 25
8.15×
Q2 25
1.22×
Q1 25
1.43×
Q4 24
Q3 24
1.98×
Q2 24
2.27×
Q1 24
1.04×

Financial Flow Comparison

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

Revenue Breakdown by Segment

IONS
IONS

Products$58.0M29%
Spinraza Royalties$54.0M27%
Collaborative Agreement Revenue$52.4M26%
Wainus Royalties$16.0M8%
Wainua Joint Development Revenue$9.6M5%
Other Commercial$7.6M4%
Other Royalties$5.7M3%

RGR
RGR

Firearms$150.6M100%
Castings$7.3M5%

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