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

TREX CO INC is the larger business by last-quarter revenue ($343.4M vs $203.3M, roughly 1.7× IONIS PHARMACEUTICALS INC). TREX CO INC runs the higher net margin — 17.9% vs -112.8%, a 130.7% gap on every dollar of revenue. On growth, TREX CO INC posted the faster year-over-year revenue change (1.0% vs -10.3%). TREX CO INC produced more free cash flow last quarter ($-143.4M vs $-159.0M). Over the past eight quarters, IONIS PHARMACEUTICALS INC's revenue compounded faster (30.4% CAGR vs -4.5%).

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.

Trex Company, Inc. is a manufacturer of wood-alternative composite decking, residential railing, and other outdoor items made from recycled materials. Its headquarters is in Winchester, Virginia.

IONS vs TREX — Head-to-Head

Bigger by revenue
TREX
TREX
1.7× larger
TREX
$343.4M
$203.3M
IONS
Growing faster (revenue YoY)
TREX
TREX
+11.3% gap
TREX
1.0%
-10.3%
IONS
Higher net margin
TREX
TREX
130.7% more per $
TREX
17.9%
-112.8%
IONS
More free cash flow
TREX
TREX
$15.6M more FCF
TREX
$-143.4M
$-159.0M
IONS
Faster 2-yr revenue CAGR
IONS
IONS
Annualised
IONS
30.4%
-4.5%
TREX

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
IONS
IONS
TREX
TREX
Revenue
$203.3M
$343.4M
Net Profit
$-229.4M
$61.4M
Gross Margin
96.1%
40.5%
Operating Margin
-105.5%
24.3%
Net Margin
-112.8%
17.9%
Revenue YoY
-10.3%
1.0%
Net Profit YoY
-119.8%
1.6%
EPS (diluted)
$-1.35
$0.58

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
TREX
TREX
Q1 26
$343.4M
Q4 25
$203.3M
$161.1M
Q3 25
$156.7M
$285.3M
Q2 25
$452.0M
$387.8M
Q1 25
$131.6M
$340.0M
Q4 24
$226.6M
$167.6M
Q3 24
$133.8M
$233.7M
Q2 24
$225.3M
$376.5M
Net Profit
IONS
IONS
TREX
TREX
Q1 26
$61.4M
Q4 25
$-229.4M
$2.3M
Q3 25
$-128.6M
$51.8M
Q2 25
$123.6M
$75.9M
Q1 25
$-146.9M
$60.4M
Q4 24
$-104.3M
$9.8M
Q3 24
$-140.5M
$40.6M
Q2 24
$-66.3M
$87.0M
Gross Margin
IONS
IONS
TREX
TREX
Q1 26
40.5%
Q4 25
96.1%
30.2%
Q3 25
98.5%
40.5%
Q2 25
99.1%
40.8%
Q1 25
98.9%
40.5%
Q4 24
98.3%
32.7%
Q3 24
99.2%
39.9%
Q2 24
98.2%
44.7%
Operating Margin
IONS
IONS
TREX
TREX
Q1 26
24.3%
Q4 25
-105.5%
2.2%
Q3 25
-102.2%
24.7%
Q2 25
30.9%
26.4%
Q1 25
-111.6%
24.0%
Q4 24
-48.9%
9.2%
Q3 24
-111.1%
23.2%
Q2 24
-29.3%
31.1%
Net Margin
IONS
IONS
TREX
TREX
Q1 26
17.9%
Q4 25
-112.8%
1.4%
Q3 25
-82.1%
18.1%
Q2 25
27.3%
19.6%
Q1 25
-111.6%
17.8%
Q4 24
-46.1%
5.8%
Q3 24
-105.0%
17.4%
Q2 24
-29.4%
23.1%
EPS (diluted)
IONS
IONS
TREX
TREX
Q1 26
$0.58
Q4 25
$-1.35
$0.03
Q3 25
$-0.80
$0.48
Q2 25
$0.70
$0.71
Q1 25
$-0.93
$0.56
Q4 24
$-0.66
$0.10
Q3 24
$-0.95
$0.37
Q2 24
$-0.45
$0.80

Balance Sheet & Financial Strength

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

Metric
IONS
IONS
TREX
TREX
Cash + ST InvestmentsLiquidity on hand
$2.7B
$4.5M
Total DebtLower is stronger
$1.8B
Stockholders' EquityBook value
$489.1M
$995.8M
Total Assets
$3.5B
$1.7B
Debt / EquityLower = less leverage
3.71×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IONS
IONS
TREX
TREX
Q1 26
$4.5M
Q4 25
$2.7B
$3.8M
Q3 25
$2.2B
$11.4M
Q2 25
$2.3B
$5.5M
Q1 25
$2.1B
$5.0M
Q4 24
$2.3B
$1.3M
Q3 24
$2.5B
$12.8M
Q2 24
$2.1B
$1.2M
Total Debt
IONS
IONS
TREX
TREX
Q1 26
Q4 25
$1.8B
Q3 25
Q2 25
Q1 25
Q4 24
$1.3B
Q3 24
Q2 24
Stockholders' Equity
IONS
IONS
TREX
TREX
Q1 26
$995.8M
Q4 25
$489.1M
$1.0B
Q3 25
$618.0M
$1.0B
Q2 25
$631.7M
$989.3M
Q1 25
$475.7M
$910.1M
Q4 24
$588.4M
$850.1M
Q3 24
$662.5M
$887.9M
Q2 24
$263.7M
$894.9M
Total Assets
IONS
IONS
TREX
TREX
Q1 26
$1.7B
Q4 25
$3.5B
$1.5B
Q3 25
$3.0B
$1.5B
Q2 25
$3.0B
$1.5B
Q1 25
$2.8B
$1.6B
Q4 24
$3.0B
$1.3B
Q3 24
$3.1B
$1.3B
Q2 24
$2.7B
$1.3B
Debt / Equity
IONS
IONS
TREX
TREX
Q1 26
Q4 25
3.71×
Q3 25
Q2 25
Q1 25
Q4 24
2.13×
Q3 24
Q2 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
TREX
TREX
Operating Cash FlowLast quarter
$-137.7M
$-118.4M
Free Cash FlowOCF − Capex
$-159.0M
$-143.4M
FCF MarginFCF / Revenue
-78.2%
-41.8%
Capex IntensityCapex / Revenue
10.5%
Cash ConversionOCF / Net Profit
-1.93×
TTM Free Cash FlowTrailing 4 quarters
$-320.0M
$224.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IONS
IONS
TREX
TREX
Q1 26
$-118.4M
Q4 25
$-137.7M
$65.5M
Q3 25
$-131.4M
$196.9M
Q2 25
$151.3M
$249.8M
Q1 25
$-150.8M
$-154.0M
Q4 24
$-116.1M
$-8.5M
Q3 24
$-115.0M
$132.8M
Q2 24
$-119.9M
$193.7M
Free Cash Flow
IONS
IONS
TREX
TREX
Q1 26
$-143.4M
Q4 25
$-159.0M
$22.1M
Q3 25
$-136.7M
$142.9M
Q2 25
$139.0M
$203.0M
Q1 25
$-163.4M
$-233.5M
Q4 24
$-141.6M
$-89.3M
Q3 24
$-124.0M
$54.5M
Q2 24
$-126.1M
$158.2M
FCF Margin
IONS
IONS
TREX
TREX
Q1 26
-41.8%
Q4 25
-78.2%
13.7%
Q3 25
-87.2%
50.1%
Q2 25
30.8%
52.3%
Q1 25
-124.1%
-68.7%
Q4 24
-62.5%
-53.3%
Q3 24
-92.7%
23.3%
Q2 24
-56.0%
42.0%
Capex Intensity
IONS
IONS
TREX
TREX
Q1 26
Q4 25
10.5%
26.9%
Q3 25
3.4%
18.9%
Q2 25
2.7%
12.1%
Q1 25
9.6%
23.4%
Q4 24
11.3%
48.2%
Q3 24
6.8%
33.5%
Q2 24
2.8%
9.4%
Cash Conversion
IONS
IONS
TREX
TREX
Q1 26
-1.93×
Q4 25
28.45×
Q3 25
3.80×
Q2 25
1.22×
3.29×
Q1 25
-2.55×
Q4 24
-0.87×
Q3 24
3.27×
Q2 24
2.23×

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%

TREX
TREX

Segment breakdown not available.

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