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Side-by-side financial comparison of Fastenal (FAST) and Interactive Brokers Group, Inc. (IBKR). Click either name above to swap in a different company.

Fastenal is the larger business by last-quarter revenue ($2.0B vs $667.0M, roughly 3.0× Interactive Brokers Group, Inc.). Interactive Brokers Group, Inc. runs the higher net margin — 180.1% vs 14.5%, a 165.6% gap on every dollar of revenue. On growth, Interactive Brokers Group, Inc. posted the faster year-over-year revenue change (19.5% vs 3.5%). Over the past eight quarters, Interactive Brokers Group, Inc.'s revenue compounded faster (23.4% CAGR vs 2.9%).

Fastenal Company is an American publicly traded company based in Winona, Minnesota, founded in 1967. Fastenal is a major distributor of industrial and construction supplies, and the largest fastener distributor in North America. Fastenal provides supply chain solutions including bin stock, vending machines, inventory management, and logistics services.

Interactive Brokers, Inc. is an American multinational brokerage firm headquartered in Greenwich, Connecticut. It operates the largest electronic trading platform in the United States by number of daily average revenue trades. In 2024, the platform processed an average of 2.6 million trades per trading day. Interactive Brokers is the largest foreign exchange market broker and is one of the largest prime brokers servicing commodity brokers. The company brokers stocks, options, futures contract...

FAST vs IBKR — Head-to-Head

Bigger by revenue
FAST
FAST
3.0× larger
FAST
$2.0B
$667.0M
IBKR
Growing faster (revenue YoY)
IBKR
IBKR
+16.1% gap
IBKR
19.5%
3.5%
FAST
Higher net margin
IBKR
IBKR
165.6% more per $
IBKR
180.1%
14.5%
FAST
Faster 2-yr revenue CAGR
IBKR
IBKR
Annualised
IBKR
23.4%
2.9%
FAST

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
FAST
FAST
IBKR
IBKR
Revenue
$2.0B
$667.0M
Net Profit
$293.9M
$1.2B
Gross Margin
44.3%
Operating Margin
18.9%
Net Margin
14.5%
180.1%
Revenue YoY
3.5%
19.5%
Net Profit YoY
-1.6%
23.9%
EPS (diluted)
$-0.01
$-0.82

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
FAST
FAST
IBKR
IBKR
Q1 26
$2.0B
Q4 25
$2.0B
$667.0M
Q3 25
$2.1B
$603.0M
Q2 25
$2.1B
$578.0M
Q1 25
$2.0B
$592.0M
Q4 24
$1.8B
$558.0M
Q3 24
$1.9B
$507.0M
Q2 24
$1.9B
$474.0M
Net Profit
FAST
FAST
IBKR
IBKR
Q1 26
$293.9M
Q4 25
$293.9M
$1.2B
Q3 25
$335.5M
$1.2B
Q2 25
$330.3M
$1.0B
Q1 25
$298.7M
$964.0M
Q4 24
$262.1M
$969.0M
Q3 24
$298.1M
$834.0M
Q2 24
$292.7M
$809.0M
Gross Margin
FAST
FAST
IBKR
IBKR
Q1 26
44.3%
Q4 25
44.3%
Q3 25
45.3%
Q2 25
45.3%
Q1 25
45.1%
Q4 24
44.8%
Q3 24
44.9%
Q2 24
45.1%
Operating Margin
FAST
FAST
IBKR
IBKR
Q1 26
18.9%
Q4 25
18.9%
Q3 25
20.7%
Q2 25
21.0%
Q1 25
20.1%
Q4 24
18.9%
Q3 24
20.3%
Q2 24
20.2%
Net Margin
FAST
FAST
IBKR
IBKR
Q1 26
14.5%
Q4 25
14.5%
180.1%
Q3 25
15.7%
196.7%
Q2 25
15.9%
174.0%
Q1 25
15.2%
162.8%
Q4 24
14.4%
173.7%
Q3 24
15.6%
164.5%
Q2 24
15.3%
170.7%
EPS (diluted)
FAST
FAST
IBKR
IBKR
Q1 26
$-0.01
Q4 25
$-0.01
$-0.82
Q3 25
$0.29
$0.59
Q2 25
$0.29
$0.51
Q1 25
$0.52
$1.94
Q4 24
$0.45
$2.00
Q3 24
$0.52
$1.67
Q2 24
$0.51
$1.65

Balance Sheet & Financial Strength

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

Metric
FAST
FAST
IBKR
IBKR
Cash + ST InvestmentsLiquidity on hand
$276.8M
$5.0B
Total DebtLower is stronger
$125.0M
Stockholders' EquityBook value
$3.9B
$5.4B
Total Assets
$5.1B
$203.2B
Debt / EquityLower = less leverage
0.03×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FAST
FAST
IBKR
IBKR
Q1 26
$276.8M
Q4 25
$276.8M
$5.0B
Q3 25
$288.1M
$5.1B
Q2 25
$237.8M
$4.7B
Q1 25
$231.8M
$3.5B
Q4 24
$255.8M
$3.6B
Q3 24
$292.2M
$3.6B
Q2 24
$255.5M
$3.9B
Total Debt
FAST
FAST
IBKR
IBKR
Q1 26
$125.0M
Q4 25
$125.0M
Q3 25
$195.0M
Q2 25
$230.0M
Q1 25
$200.0M
Q4 24
$200.0M
Q3 24
$240.0M
Q2 24
$235.0M
Stockholders' Equity
FAST
FAST
IBKR
IBKR
Q1 26
$3.9B
Q4 25
$3.9B
$5.4B
Q3 25
$3.9B
$5.1B
Q2 25
$3.8B
$4.8B
Q1 25
$3.7B
$4.5B
Q4 24
$3.6B
$4.3B
Q3 24
$3.6B
$4.1B
Q2 24
$3.5B
$3.9B
Total Assets
FAST
FAST
IBKR
IBKR
Q1 26
$5.1B
Q4 25
$5.1B
$203.2B
Q3 25
$5.1B
$200.2B
Q2 25
$5.0B
$181.5B
Q1 25
$4.9B
$157.7B
Q4 24
$4.7B
$150.1B
Q3 24
$4.7B
$148.5B
Q2 24
$4.6B
$136.6B
Debt / Equity
FAST
FAST
IBKR
IBKR
Q1 26
0.03×
Q4 25
0.03×
Q3 25
0.05×
Q2 25
0.06×
Q1 25
0.05×
Q4 24
0.06×
Q3 24
0.07×
Q2 24
0.07×

Cash Flow & Capital Efficiency

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

Metric
FAST
FAST
IBKR
IBKR
Operating Cash FlowLast quarter
$368.2M
$1.6B
Free Cash FlowOCF − Capex
$308.2M
FCF MarginFCF / Revenue
15.2%
Capex IntensityCapex / Revenue
3.0%
Cash ConversionOCF / Net Profit
1.25×
1.34×
TTM Free Cash FlowTrailing 4 quarters
$1.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FAST
FAST
IBKR
IBKR
Q1 26
$368.2M
Q4 25
$368.2M
$1.6B
Q3 25
$386.9M
$4.5B
Q2 25
$278.6M
$7.1B
Q1 25
$262.2M
$2.6B
Q4 24
$282.8M
$1.8B
Q3 24
$296.9M
$3.6B
Q2 24
$258.0M
$1.6B
Free Cash Flow
FAST
FAST
IBKR
IBKR
Q1 26
$308.2M
Q4 25
$308.2M
Q3 25
$326.6M
Q2 25
$209.3M
Q1 25
$206.5M
Q4 24
$222.6M
Q3 24
$237.5M
Q2 24
$201.9M
FCF Margin
FAST
FAST
IBKR
IBKR
Q1 26
15.2%
Q4 25
15.2%
Q3 25
15.3%
Q2 25
10.1%
Q1 25
10.5%
Q4 24
12.2%
Q3 24
12.4%
Q2 24
10.5%
Capex Intensity
FAST
FAST
IBKR
IBKR
Q1 26
3.0%
Q4 25
3.0%
Q3 25
2.8%
Q2 25
3.3%
Q1 25
2.8%
Q4 24
3.3%
Q3 24
3.1%
Q2 24
2.9%
Cash Conversion
FAST
FAST
IBKR
IBKR
Q1 26
1.25×
Q4 25
1.25×
1.34×
Q3 25
1.15×
3.78×
Q2 25
0.84×
7.10×
Q1 25
0.88×
2.68×
Q4 24
1.08×
1.90×
Q3 24
1.00×
4.29×
Q2 24
0.88×
2.00×

Financial Flow Comparison

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

Revenue Breakdown by Segment

FAST
FAST

Reportable Segment Aggregation Before Other Operating Segment$1.8B90%
Other$211.2M10%

IBKR
IBKR

Commissions$582.0M87%
Risk Exposure Fees$21.0M3%
Market Data Fees$20.0M3%
Payments For Order Flow$17.0M3%
Other$17.0M3%
Fdic Sweep Fees$10.0M1%

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