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Better Stock-Split Stock: Fastenal, O'Reilly Automotive, or Interactive Brokers?

Keith Speights, The Motley Fool

5 min read

In This Article:

  • Fastenal is the easy pick for income investors among these three stock-split stocks.

  • Value investors probably won't like any of these stocks, although Interactive Brokers has the lowest forward earnings multiple.

  • Growth investors will likely prefer O'Reilly Automotive.

  • 10 stocks we like better than O'Reilly Automotive ›

On the surface, Fastenal (NASDAQ: FAST), O'Reilly Automotive (NASDAQ: ORLY), and Interactive Brokers Group (NASDAQ: IBKR) might seem to have practically nothing in common. Fastenal is a leader in the distribution of industrial and construction supplies, especially fasteners. O'Reilly operates a chain of after-market auto parts stores. Interactive Brokers runs a popular online brokerage.

But these three stocks share at least one common denominator. They've each announced stock splits this year. Fastenal conducted a 2-for-1 stock split on May 22. O'Reilly had a 15-for-1 stock split on June 9. Interactive Brokers split its stock 4-for-1 on June 17.

Which of these three stock-split stocks is the best pick for investors now? Here's how Fastenal, O'Reilly, and Interactive Brokers compare.

A person with question marks in the background.

Image source: Getty Images.

O'Reilly Automotive leads the pack on some key financial metrics. The company generated revenue of $16.87 billion over the last 12 months, well above Fastenal's $7.61 billion and Interactive Brokers' $5.4 billion. Unsurprisingly, it also posted the greatest profits.

But when it comes to profitability, based on net profit margin, the three stocks are neck-and-neck. Fastenal comes out slightly ahead, though, with a net profit margin of 15.1% versus O'Reilly's and Interactive Brokers' net profit margins of 14.1% and 14.7%, respectively.

Interactive Brokers appears to claim the strongest balance sheet. Its cash position of nearly $89.7 billion is more than five times greater than its debt of $17.15 billion. Fastenal's and O'Reilly's debt loads are larger than their cash stockpiles.

There's no contest between these three stock-split stocks on current growth. Interactive Brokers' revenue jumped 18.6% year over year in the first quarter of 2025, with earnings soaring 21.7%.

The growth delivered by Fastenal and O'Reilly pales in comparison. Fastenal's net sales rose by 3.4% year over year in Q1. Its earnings edged only 0.3% higher. O'Reilly reported revenue growth of 4%, with earnings declining by 1.6%.

What about future growth? O'Reilly comes out on top, at least according to analysts surveyed by LSEG. Wall Street projects the auto parts chain to deliver earnings growth of 12.5% next year, higher than the estimates of 9.8% earnings growth for Fastenal and 7.3% growth for Interactive Brokers.