Investors in AI Chip Makers See Gains
Investors holding shares in AI chip manufacturers, particularly Nvidia, have witnessed a remarkable rally. The company is currently experiencing a surge in demand, boosting its stock price significantly last year, and it may continue to rise into 2026.
However, there are questions about the sustainability of this demand. As the AI data center market evolves, supply might eventually meet demand or hyperscalers might pull back from large-scale operations. In such cases, Nvidia might lose some pricing power, potentially leading to compressed margins.
Looking ahead, I’m considering a different type of growth stock—one that has consistently grown market share, maintains a lower cost structure, and perhaps faces less cyclical risk for long-term returns.
The stock I’m eyeing is Interactive Brokers. Surprisingly, this company outperformed Nvidia in earnings last year and is still ahead this year.
Strong Growth for Interactive Brokers
Interactive Brokers has shown impressive business momentum lately. In 2025, it reported a 32% growth in the number of customer accounts, and this trend seems likely to carry on into 2026. Just this past March, it indicated that its average daily revenue transactions (DART) hit 4.33 million, a 25% increase from the previous year.
What stands out about Interactive Brokers is its automated, low-cost operational model. In the fourth quarter of 2025, it boasted a pre-tax profit margin of 79%. This automation means that even with spikes in trading volumes, the company doesn’t have to significantly raise its expenses, which allows for excellent operational leverage. So, when revenue goes up quickly, most of that increase translates directly to profit.
Given that Interactive Brokers is already a low-cost player, the risk of margin compression is probably lower than that faced by hardware companies like Nvidia. Nvidia needs to maintain its high gross profit margins—around 75%—by keeping ahead of better-funded competitors, which can be quite challenging. In contrast, Interactive Brokers has built its margins over decades through software improvements and automation, ensuring it remains a competitive low-cost broker with excellent value propositions.
Regulatory Changes Could Boost Growth
Further growth seems plausible. Recently, the SEC approved a FINRA proposal to eliminate the $25,000 minimum capital requirement for pattern day traders, a rule that had been in place since 2001.
This change favors Interactive Brokers—an electronic brokerage popular among active traders—as it reduces barriers for retail traders with smaller accounts, potentially boosting DART growth.
Valuation Considerations
Now, it’s essential to consider the stock price’s implications. Currently, Interactive Brokers is trading at about a 37 times price-to-earnings ratio. This suggests that a robust, double-digit growth in customer accounts and revenue is factored in. That said, the company has consistently delivered on those expectations for its shareholders.
Of course, there are risks to keep in mind.
Firstly, part of Interactive Brokers’ strategy relies on earning substantial net interest income from its customers’ cash and margin balances, which tends to work well when interest rates are high. If rates fall, it could face short-term pressure. On the other hand, lower rates might also stimulate trading activity and margin borrowing, offsetting some negative effects from drops in interest rates.
Secondly, a major downturn in the stock market could negatively impact Interactive Brokers, reducing trading activity and customer stock balances.
Ultimately, though, I believe Interactive Brokers presents a more sustainable growth narrative than Nvidia because its model is anchored in competitive pricing and interest income rather than premium pricing. I wouldn’t be surprised if this low-cost operator quietly outperforms Nvidia over the next ten years.
