Q1 2026 results set the stage for the latest IBKR narrative

Interactive Brokers Group (IBKR) has opened 2026 with Q1 total revenue of US$1.6 billion and basic EPS of US$0.60, alongside net income excluding extra items of US$267 million, while the trailing twelve months show revenue of US$6.4 billion, EPS of US$2.34 and net income of US$1.0 billion as the broader earnings backdrop. Over recent quarters the company has seen revenue move from US$1,407 million in Q1 2025 through US$1,533 million, US$1,651 million and US$1,618 million to US$1,643 million in Q1 2026, with basic EPS ranging between US$0.49 and US$0.64 across the same stretch. With trailing net profit margins running at 16.1%, these latest numbers put the focus squarely on how efficiently IBKR is translating its trading and brokerage activity into bottom line results.

See our full analysis for Interactive Brokers Group.

With the headline figures on the table, the next step is to see how this earnings profile lines up with the most widely held stories about IBKR, highlighting where the numbers support existing views and where they start to challenge them.

Trailing growth picture behind the Q1 snapshot

• On a trailing 12 month basis, IBKR generated US$6.4b of revenue and US$1.0b of net income excluding extra items, with basic EPS of US$2.34 compared with US$1.75 at the end of 2024 in the same dataset.
• Bulls point to these trailing figures as backing their view that earnings expansion can be durable, yet the bullish narrative assumes revenue grows around 8.4% a year and earnings reach about US$1.4b by 2028. This means:
  • The move from US$5.2b to US$6.4b of trailing revenue and from US$755 million to US$1.0b of trailing net income in the data aligns with the idea that the business has already been scaling, but it also sets a higher base that bullish forecasts need to build from.
  • Basic EPS in the trailing set has climbed from US$1.75 to US$2.34, which heavily supports the bullish argument that past expansion has been strong, while also making it important for investors to compare these realised numbers with the bullish assumptions around future margins and account growth.

Bulls argue that this recent earnings run is just the first chapter, and that product expansion and global growth could carry it further, so it can be helpful to see how that story is laid out in full 🐂 Interactive Brokers Group Bull Case

Margins, P/E and what the market is paying for

• The trailing net profit margin sits at 16.1%, up from 14.7% a year earlier in the dataset, while the current P/E of 33.5x is above the peer average of 23.5x yet below the US Capital Markets industry average of 42.4x.
• Consensus narrative suggests the business quality helps justify a higher multiple, but current numbers give a mixed picture:
  • The shift in trailing margin from 14.7% to 16.1% fits with the idea that profitability has strengthened, which can support a premium P/E relative to peers, even if it still sits under the sector average.
  • At the same time, the DCF fair value in the dataset is US$31.71 against a current share price of US$78.11, and the only allowed analyst price target reference of US$84.30 is close to where the stock trades, so investors weighing the consensus story have to balance margin strength with the gap between price and DCF fair value.

Testing the cautious view on rates and activity

• Over the last year, earnings in the dataset grew 30.9% with a five year compounded growth rate of 28.4% a year, while Q1 2026 net income excluding extra items of US$267 million sits within a recent quarterly range of US$213 million to US$284 million.
• Bears highlight that a 1% cut in benchmark rates is estimated to reduce annual net interest income by about US$417 million and that trading activity could cool, yet current figures give a more balanced backdrop:
  • The earnings growth rates of 30.9% for the last year and 28.4% a year over five years sit alongside the Q1 revenue of US$1.6b and trailing revenue of US$6.4b, which shows the business has been generating higher earnings from a larger base even as results move around within that quarterly band.
  • Forecast revenue growth of about 12.3% a year and earnings growth of roughly 13.7% a year in the dataset are slower than the past 5 year pace but still positive, so while a US$417 million hit from rate cuts would matter for net interest income, the current numbers do not yet show the sharp reversal in earnings power that the bearish narrative is concerned about.

Skeptics focus on interest rate sensitivity and the chance that trading volumes cool from recent highs, so it can be useful to see how that caution is built into a full bear case 🐻 Interactive Brokers Group Bear Case

Next Steps

To see how these results tie into long-term growth, risks, and valuation, check out the full range of community narratives for Interactive Brokers Group on Simply Wall St. Add the company to your watchlist or portfolio so you'll be alerted when the story evolves.

With both risks and rewards in play, the real question is how this balance fits with your own priorities and time horizon. If you want to weigh those trade offs for yourself, start by checking the 3 key rewards and 1 important warning sign

See What Else Is Out There

IBKR carries a P/E of 33.5x against a DCF fair value of US$31.71 per share, so some investors may see limited value support at current prices.

If that gap between price and DCF value makes you uneasy, you can compare this setup with companies that screen as potentially better value using the 61 high quality undervalued stocks.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.