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Side-by-side financial comparison of INTERNATIONAL BANCSHARES CORP (IBOC) and PTC THERAPEUTICS, INC. (PTCT). Click either name above to swap in a different company.

INTERNATIONAL BANCSHARES CORP is the larger business by last-quarter revenue ($217.7M vs $164.7M, roughly 1.3× PTC THERAPEUTICS, INC.). INTERNATIONAL BANCSHARES CORP runs the higher net margin — 62.3% vs -82.0%, a 144.3% gap on every dollar of revenue. On growth, INTERNATIONAL BANCSHARES CORP posted the faster year-over-year revenue change (4.5% vs -22.7%). INTERNATIONAL BANCSHARES CORP produced more free cash flow last quarter ($472.9M vs $-36.6M). Over the past eight quarters, INTERNATIONAL BANCSHARES CORP's revenue compounded faster (2.8% CAGR vs -11.5%).

International Bancshares Corporation is a bank holding company based in Laredo, Texas whose primary subsidiary is International Bank of Commerce. Through its bank subsidiaries, it has 217 banking offices and 315 automated teller machines serving 88 communities in the U.S. states of Texas and Oklahoma.

PTC Therapeutics, Inc. is a US pharmaceutical company focused on the development of orally administered small molecule drugs and gene therapy which regulate gene expression by targeting post-transcriptional control (PTC) mechanisms in orphan diseases.

IBOC vs PTCT — Head-to-Head

Bigger by revenue
IBOC
IBOC
1.3× larger
IBOC
$217.7M
$164.7M
PTCT
Growing faster (revenue YoY)
IBOC
IBOC
+27.3% gap
IBOC
4.5%
-22.7%
PTCT
Higher net margin
IBOC
IBOC
144.3% more per $
IBOC
62.3%
-82.0%
PTCT
More free cash flow
IBOC
IBOC
$509.6M more FCF
IBOC
$472.9M
$-36.6M
PTCT
Faster 2-yr revenue CAGR
IBOC
IBOC
Annualised
IBOC
2.8%
-11.5%
PTCT

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
IBOC
IBOC
PTCT
PTCT
Revenue
$217.7M
$164.7M
Net Profit
$106.9M
$-135.0M
Gross Margin
Operating Margin
62.8%
-43.3%
Net Margin
62.3%
-82.0%
Revenue YoY
4.5%
-22.7%
Net Profit YoY
-7.1%
-104.8%
EPS (diluted)
$1.71
$-1.63

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
IBOC
IBOC
PTCT
PTCT
Q4 25
$217.7M
$164.7M
Q3 25
$218.1M
$211.0M
Q2 25
$208.2M
$178.9M
Q1 25
$198.2M
$1.2B
Q4 24
$208.3M
$213.2M
Q3 24
$211.8M
$196.8M
Q2 24
$207.8M
$186.7M
Q1 24
$205.8M
$210.1M
Net Profit
IBOC
IBOC
PTCT
PTCT
Q4 25
$106.9M
$-135.0M
Q3 25
$108.4M
$15.9M
Q2 25
$100.1M
$-64.8M
Q1 25
$96.9M
$866.6M
Q4 24
$115.1M
$-65.9M
Q3 24
$99.8M
$-106.7M
Q2 24
$97.0M
$-99.2M
Q1 24
$97.3M
$-91.6M
Operating Margin
IBOC
IBOC
PTCT
PTCT
Q4 25
62.8%
-43.3%
Q3 25
62.6%
1.4%
Q2 25
60.5%
-19.5%
Q1 25
61.1%
82.5%
Q4 24
64.2%
-76.2%
Q3 24
60.0%
-27.7%
Q2 24
60.1%
-21.5%
Q1 24
59.9%
-21.6%
Net Margin
IBOC
IBOC
PTCT
PTCT
Q4 25
62.3%
-82.0%
Q3 25
49.7%
7.5%
Q2 25
48.1%
-36.3%
Q1 25
48.9%
73.7%
Q4 24
71.5%
-30.9%
Q3 24
47.1%
-54.2%
Q2 24
46.7%
-53.1%
Q1 24
47.3%
-43.6%
EPS (diluted)
IBOC
IBOC
PTCT
PTCT
Q4 25
$1.71
$-1.63
Q3 25
$1.74
$0.20
Q2 25
$1.61
$-0.83
Q1 25
$1.56
$10.04
Q4 24
$1.85
$-0.85
Q3 24
$1.60
$-1.39
Q2 24
$1.56
$-1.29
Q1 24
$1.56
$-1.20

Balance Sheet & Financial Strength

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

Metric
IBOC
IBOC
PTCT
PTCT
Cash + ST InvestmentsLiquidity on hand
$5.5B
$1.9B
Total DebtLower is stronger
Stockholders' EquityBook value
$3.3B
$-205.3M
Total Assets
$16.6B
$2.9B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IBOC
IBOC
PTCT
PTCT
Q4 25
$5.5B
$1.9B
Q3 25
$5.6B
$1.7B
Q2 25
$5.8B
$2.0B
Q1 25
$5.6B
$2.0B
Q4 24
$5.4B
$1.1B
Q3 24
$5.8B
$1.0B
Q2 24
$5.7B
$1.1B
Q1 24
$5.7B
$884.8M
Stockholders' Equity
IBOC
IBOC
PTCT
PTCT
Q4 25
$3.3B
$-205.3M
Q3 25
$3.1B
$-155.8M
Q2 25
$3.0B
$-206.5M
Q1 25
$2.9B
$-185.8M
Q4 24
$2.8B
$-1.1B
Q3 24
$2.7B
$-1.1B
Q2 24
$2.6B
$-980.2M
Q1 24
$2.5B
$-893.9M
Total Assets
IBOC
IBOC
PTCT
PTCT
Q4 25
$16.6B
$2.9B
Q3 25
$16.6B
$2.6B
Q2 25
$16.5B
$2.6B
Q1 25
$16.3B
$2.7B
Q4 24
$15.7B
$1.7B
Q3 24
$15.9B
$1.8B
Q2 24
$15.5B
$1.9B
Q1 24
$15.4B
$1.8B

Cash Flow & Capital Efficiency

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

Metric
IBOC
IBOC
PTCT
PTCT
Operating Cash FlowLast quarter
$491.1M
$-34.3M
Free Cash FlowOCF − Capex
$472.9M
$-36.6M
FCF MarginFCF / Revenue
217.2%
-22.3%
Capex IntensityCapex / Revenue
8.3%
1.4%
Cash ConversionOCF / Net Profit
4.59×
TTM Free Cash FlowTrailing 4 quarters
$809.9M
$702.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IBOC
IBOC
PTCT
PTCT
Q4 25
$491.1M
$-34.3M
Q3 25
$115.2M
$-66.3M
Q2 25
$95.5M
$-58.3M
Q1 25
$140.5M
$870.1M
Q4 24
$473.9M
$-30.0M
Q3 24
$116.5M
$-77.0M
Q2 24
$107.2M
$-71.5M
Q1 24
$135.4M
$70.8M
Free Cash Flow
IBOC
IBOC
PTCT
PTCT
Q4 25
$472.9M
$-36.6M
Q3 25
$112.2M
$-69.7M
Q2 25
$91.6M
$-59.6M
Q1 25
$133.1M
$868.4M
Q4 24
$459.8M
$-33.8M
Q3 24
$109.6M
$-77.5M
Q2 24
$104.9M
$-78.8M
Q1 24
$128.9M
$61.2M
FCF Margin
IBOC
IBOC
PTCT
PTCT
Q4 25
217.2%
-22.3%
Q3 25
51.5%
-33.1%
Q2 25
44.0%
-33.3%
Q1 25
67.1%
73.8%
Q4 24
220.8%
-15.8%
Q3 24
51.7%
-39.4%
Q2 24
50.5%
-42.2%
Q1 24
62.6%
29.1%
Capex Intensity
IBOC
IBOC
PTCT
PTCT
Q4 25
8.3%
1.4%
Q3 25
1.3%
1.6%
Q2 25
1.9%
0.7%
Q1 25
3.7%
0.1%
Q4 24
6.8%
1.8%
Q3 24
3.3%
0.3%
Q2 24
1.1%
4.0%
Q1 24
3.2%
4.6%
Cash Conversion
IBOC
IBOC
PTCT
PTCT
Q4 25
4.59×
Q3 25
1.06×
-4.17×
Q2 25
0.95×
Q1 25
1.45×
1.00×
Q4 24
4.12×
Q3 24
1.17×
Q2 24
1.11×
Q1 24
1.39×

Financial Flow Comparison

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

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