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Side-by-side financial comparison of FOSTER L B CO (FSTR) and Ultragenyx Pharmaceutical Inc. (RARE). Click either name above to swap in a different company.

Ultragenyx Pharmaceutical Inc. is the larger business by last-quarter revenue ($207.3M vs $160.4M, roughly 1.3× FOSTER L B CO). FOSTER L B CO runs the higher net margin — 1.5% vs -62.0%, a 63.5% gap on every dollar of revenue. On growth, Ultragenyx Pharmaceutical Inc. posted the faster year-over-year revenue change (25.9% vs 25.1%). FOSTER L B CO produced more free cash flow last quarter ($19.8M vs $-100.8M). Over the past eight quarters, Ultragenyx Pharmaceutical Inc.'s revenue compounded faster (38.0% CAGR vs 13.6%).

Foster L B Co. is a U.S.-headquartered industrial manufacturing firm that develops, produces and distributes engineered access solutions, construction components, and rail infrastructure products. It serves commercial construction, transportation, and industrial end markets across North America and selected international regions.

Ultragenyx Pharmaceutical Inc. is an American biopharmaceutical company involved in the research and development of novel products for treatment of rare and ultra-rare genetic diseases for which there are typically no approved treatments and high unmet medical need. The company works with multiple drug modalities including biologics, small molecule, gene therapies, and ASO and mRNAs in the disease categories of bone, endocrine, metabolic, muscle and CNS diseases.

FSTR vs RARE — Head-to-Head

Bigger by revenue
RARE
RARE
1.3× larger
RARE
$207.3M
$160.4M
FSTR
Growing faster (revenue YoY)
RARE
RARE
+0.8% gap
RARE
25.9%
25.1%
FSTR
Higher net margin
FSTR
FSTR
63.5% more per $
FSTR
1.5%
-62.0%
RARE
More free cash flow
FSTR
FSTR
$120.6M more FCF
FSTR
$19.8M
$-100.8M
RARE
Faster 2-yr revenue CAGR
RARE
RARE
Annualised
RARE
38.0%
13.6%
FSTR

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
FSTR
FSTR
RARE
RARE
Revenue
$160.4M
$207.3M
Net Profit
$2.4M
$-128.6M
Gross Margin
19.7%
Operating Margin
4.9%
-54.7%
Net Margin
1.5%
-62.0%
Revenue YoY
25.1%
25.9%
Net Profit YoY
1098.3%
3.5%
EPS (diluted)
$0.22
$-1.28

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
FSTR
FSTR
RARE
RARE
Q4 25
$160.4M
$207.3M
Q3 25
$138.3M
$159.9M
Q2 25
$143.6M
$166.5M
Q1 25
$97.8M
$139.3M
Q4 24
$128.2M
$164.6M
Q3 24
$137.5M
$139.5M
Q2 24
$140.8M
$147.0M
Q1 24
$124.3M
$108.8M
Net Profit
FSTR
FSTR
RARE
RARE
Q4 25
$2.4M
$-128.6M
Q3 25
$4.4M
$-180.4M
Q2 25
$2.9M
$-115.0M
Q1 25
$-2.1M
$-151.1M
Q4 24
$-242.0K
$-133.2M
Q3 24
$35.9M
$-133.5M
Q2 24
$2.8M
$-131.6M
Q1 24
$4.4M
$-170.7M
Gross Margin
FSTR
FSTR
RARE
RARE
Q4 25
19.7%
Q3 25
22.5%
Q2 25
21.5%
Q1 25
20.6%
Q4 24
22.3%
Q3 24
23.8%
Q2 24
21.7%
Q1 24
21.1%
Operating Margin
FSTR
FSTR
RARE
RARE
Q4 25
4.9%
-54.7%
Q3 25
6.0%
-106.9%
Q2 25
5.3%
-64.8%
Q1 25
-2.0%
-102.6%
Q4 24
2.4%
-74.3%
Q3 24
5.3%
-94.6%
Q2 24
3.2%
-79.1%
Q1 24
4.5%
-151.9%
Net Margin
FSTR
FSTR
RARE
RARE
Q4 25
1.5%
-62.0%
Q3 25
3.1%
-112.8%
Q2 25
2.0%
-69.0%
Q1 25
-2.2%
-108.5%
Q4 24
-0.2%
-80.9%
Q3 24
26.1%
-95.7%
Q2 24
2.0%
-89.5%
Q1 24
3.6%
-156.8%
EPS (diluted)
FSTR
FSTR
RARE
RARE
Q4 25
$0.22
$-1.28
Q3 25
$0.40
$-1.81
Q2 25
$0.27
$-1.17
Q1 25
$-0.20
$-1.57
Q4 24
$-0.04
$-1.34
Q3 24
$3.27
$-1.40
Q2 24
$0.26
$-1.52
Q1 24
$0.40
$-2.03

Balance Sheet & Financial Strength

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

Metric
FSTR
FSTR
RARE
RARE
Cash + ST InvestmentsLiquidity on hand
$4.3M
$421.0M
Total DebtLower is stronger
$42.6M
Stockholders' EquityBook value
$175.3M
$-80.0M
Total Assets
$330.4M
$1.5B
Debt / EquityLower = less leverage
0.24×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FSTR
FSTR
RARE
RARE
Q4 25
$4.3M
$421.0M
Q3 25
$3.4M
$202.5M
Q2 25
$4.2M
$176.3M
Q1 25
$2.6M
$127.1M
Q4 24
$2.5M
$174.0M
Q3 24
$3.1M
$150.6M
Q2 24
$4.0M
$480.7M
Q1 24
$3.1M
$112.3M
Total Debt
FSTR
FSTR
RARE
RARE
Q4 25
$42.6M
Q3 25
$58.6M
Q2 25
$81.4M
Q1 25
$82.3M
Q4 24
$46.8M
Q3 24
$68.4M
Q2 24
$87.0M
Q1 24
$77.9M
Stockholders' Equity
FSTR
FSTR
RARE
RARE
Q4 25
$175.3M
$-80.0M
Q3 25
$174.8M
$9.2M
Q2 25
$174.4M
$151.3M
Q1 25
$170.8M
$144.2M
Q4 24
$178.3M
$255.0M
Q3 24
$181.9M
$346.8M
Q2 24
$147.1M
$432.4M
Q1 24
$144.6M
$140.3M
Total Assets
FSTR
FSTR
RARE
RARE
Q4 25
$330.4M
$1.5B
Q3 25
$333.9M
$1.2B
Q2 25
$349.9M
$1.3B
Q1 25
$342.8M
$1.3B
Q4 24
$334.6M
$1.5B
Q3 24
$344.5M
$1.5B
Q2 24
$333.3M
$1.6B
Q1 24
$326.4M
$1.3B
Debt / Equity
FSTR
FSTR
RARE
RARE
Q4 25
0.24×
Q3 25
0.33×
Q2 25
0.47×
Q1 25
0.48×
Q4 24
0.26×
Q3 24
0.38×
Q2 24
0.59×
Q1 24
0.54×

Cash Flow & Capital Efficiency

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

Metric
FSTR
FSTR
RARE
RARE
Operating Cash FlowLast quarter
$22.2M
$-99.8M
Free Cash FlowOCF − Capex
$19.8M
$-100.8M
FCF MarginFCF / Revenue
12.3%
-48.6%
Capex IntensityCapex / Revenue
1.5%
0.5%
Cash ConversionOCF / Net Profit
9.18×
TTM Free Cash FlowTrailing 4 quarters
$25.2M
$-472.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FSTR
FSTR
RARE
RARE
Q4 25
$22.2M
$-99.8M
Q3 25
$29.2M
$-91.4M
Q2 25
$10.4M
$-108.3M
Q1 25
$-26.1M
$-166.5M
Q4 24
$24.3M
$-79.3M
Q3 24
$24.7M
$-67.0M
Q2 24
$-5.0M
$-77.0M
Q1 24
$-21.4M
$-190.7M
Free Cash Flow
FSTR
FSTR
RARE
RARE
Q4 25
$19.8M
$-100.8M
Q3 25
$26.4M
$-92.7M
Q2 25
$7.7M
$-110.7M
Q1 25
$-28.7M
$-167.8M
Q4 24
$22.3M
$-79.5M
Q3 24
$21.7M
$-68.6M
Q2 24
$-7.0M
$-79.0M
Q1 24
$-24.2M
$-193.9M
FCF Margin
FSTR
FSTR
RARE
RARE
Q4 25
12.3%
-48.6%
Q3 25
19.1%
-58.0%
Q2 25
5.4%
-66.5%
Q1 25
-29.4%
-120.5%
Q4 24
17.4%
-48.3%
Q3 24
15.8%
-49.2%
Q2 24
-5.0%
-53.7%
Q1 24
-19.4%
-178.2%
Capex Intensity
FSTR
FSTR
RARE
RARE
Q4 25
1.5%
0.5%
Q3 25
2.0%
0.8%
Q2 25
1.9%
1.5%
Q1 25
2.6%
1.0%
Q4 24
1.5%
0.1%
Q3 24
2.2%
1.2%
Q2 24
1.5%
1.4%
Q1 24
2.2%
3.0%
Cash Conversion
FSTR
FSTR
RARE
RARE
Q4 25
9.18×
Q3 25
6.70×
Q2 25
3.61×
Q1 25
Q4 24
Q3 24
0.69×
Q2 24
-1.74×
Q1 24
-4.83×

Financial Flow Comparison

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

Revenue Breakdown by Segment

FSTR
FSTR

Rail Technologies And Services Segment$98.0M61%
Over Time Output Method$26.3M16%
Services$19.4M12%
Rail Technologies Products$10.0M6%
Over Time Input Method$8.3M5%

RARE
RARE

Royalty$105.6M51%
Products$101.7M49%

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