NASDAQ: IBKR · Investment Banking & Services
Interactive Brokers Group (IBKR) fair value and price range
As of 3 Oct 2026, Faircurve's model values Interactive Brokers Group (IBKR) at $68.78 a share. The stock last closed at $88.30, which puts the model's fair value 22.1% below the price. The model grades the evidence behind this valuation as low, so no verdict is shown. For banks, insurers and mortgage real estate investment trusts (REITs) the grade looks at how many comparable companies there are and how closely they agree, how wide the range of outcomes is, and whether the model's valuation methods agree with each other. It does not say how likely the fair value is to be right.
Revalued . Price is the close of 2 Oct 2026. Interactive Brokers Group, Inc.
Faircurve Insights · 3 Oct 2026
Interactive Brokers Group, Inc. operates as a sophisticated electronic brokerage, serving clients across the United States and globally.
Faircurve's model found a fair value of $68.78 a share for Interactive Brokers Group, Inc. on 3 Oct 2026, the midpoint of 2,000 simulations. This fair value moved -1.0% since the previous run on 26 Sep 2026, which gave $69.47. The calibrated range over 63 trading days is $79.15 to $105.83, built around the price from the volatility the stock's own options imply, calibrated weekly against realised prices (3,562 past valuations, refreshed 3 Oct 2026). Ranges built this way held the price 60% of the time at this horizon. The model grades the evidence behind this valuation as low.
The median size of moves around the last 8 earnings reports, ignoring direction, was 4.5%. Faircurve's model compares Interactive Brokers Group, Inc. with Bank of New York Mellon Corp (BNY), Stifel Financial Corp (SF), Houlihan Lokey, Inc. (HLI), Piper Sandler Companies (PIPR), and PJT Partners Inc. (PJT), all with no verdict on this date.
Written from the figures on this page for the 3 Oct 2026 valuation and checked by rule before publishing: every number is one printed here, no forecast, no instruction. The price, the gap and the verdict are the page's own and change daily. Not a recommendation.
What price range does the model give IBKR?
The calibrated range for IBKR over 63 trading days is $79.15 to $105.83. It sits around the last close, and its width comes from the volatility that IBKR's own options imply (41% a year), calibrated weekly against realised prices (n = 3,562 past valuations, refreshed 3 Oct 2026). Ranges built this way held the price 60% of the time at this horizon. The fair value is the model's opinion and rides beside the range. It is not the centre of it.
The model's own simulated range, from the 20th to the 80th percentile of its runs, is $53.38 to $86.97. In 19% of the simulations the fair value came out above the price the model ran on.
How does IBKR compare with similar companies?
The companies in investment banking & services closest to Interactive Brokers Group in market value, each on the same model and the same date.
| Company | Last close | Model fair value | Gap | Model verdict |
|---|---|---|---|---|
| BNY Bank of New York Mellon Corp | $145.40 | $69.22 | -52.4% | Low evidence grade |
| SF Stifel Financial Corp | $70.28 | $77.95 | +10.9% | Low evidence grade |
| HLI Houlihan Lokey, Inc. | $126.37 | $71.13 | -43.7% | Low evidence grade |
| PIPR Piper Sandler Companies | $65.36 | $69.97 | +7.1% | Low evidence grade |
| PJT PJT Partners Inc. | $138.69 | $111.29 | -19.8% | Low evidence grade |
All investment banking & services stocks ranked by gap to fair value
When does IBKR report earnings, and how has the stock reacted?
Interactive Brokers Group's next earnings report is scheduled for 20 Oct 2026. Companies can move their dates.
Options prices on 2 Oct 2026 imply a move of about 7.1% in either direction through the nearest expiry, about 13 days out. That is the size the market is pricing, not a direction. IBKR's 30 day implied volatility works out to about 11.9% over one month.
How IBKR moved around its last 8 earnings reports
Each move runs from the last close before the report to the first close after it, so it covers companies that report before the open and after the close. The median size across these 8 reports, ignoring direction, was 4.5%.
| Report date | Two session move |
|---|---|
| 21 Jul 2026 | +2.0% |
| 21 Apr 2026 | -3.9% |
| 20 Jan 2026 | +3.3% |
| 16 Oct 2025 | -5.1% |
| 17 Jul 2025 | +7.7% |
| 15 Apr 2025 | -8.7% |
| 21 Jan 2025 | +10.4% |
| 15 Oct 2024 | -3.0% |
Interactive Brokers Group at a glance
Interactive Brokers Group, Inc. operates as a sophisticated electronic brokerage, serving clients across the United States and globally.
- Market value
- $152.6B
- Sector
- Financial Services
- Industry
- Investment Banking & Services
- Consensus revenue growth, next fiscal year
- -27.4%
- Analysts with estimates
- 7
- Beta to the US market
- 2.21
- First valued by Faircurve
- 4 Jul 2026
How the fair value is worked out: the model prices Interactive Brokers Group on the share price against the net assets on the balance sheet, adjusted for the earnings analysts expect (price to book value), runs 2,000 simulations across its inputs and takes the midpoint. The full method is documented here.
What changed in the latest valuation?
On 26 Sep 2026 the model's fair value for IBKR was $69.47. As of 3 Oct 2026 it is $68.78, a change of -1.0%. The model revalues every stock it covers each week, and again after an earnings report.
Questions about Interactive Brokers Group's valuation
Is Interactive Brokers Group stock undervalued or overvalued?
Faircurve's model puts IBKR's fair value at $68.78 a share against a last close of $88.30, as of 3 Oct 2026. The model grades the evidence behind this valuation as low, so no verdict is shown. For banks, insurers and mortgage real estate investment trusts (REITs) the grade looks at how many comparable companies there are and how closely they agree, how wide the range of outcomes is, and whether the model's valuation methods agree with each other. It does not say how likely the fair value is to be right.
What is IBKR's fair value?
$68.78 a share as of 3 Oct 2026, the midpoint of 2,000 simulations. The model's own 20th to 80th percentile range is $53.38 to $86.97.
What price range does the model give IBKR?
$79.15 to $105.83 over 63 trading days. Ranges built this way held the price 60% of the time across 3,562 past valuations, refreshed 3 Oct 2026.
When does Interactive Brokers Group report earnings next?
The next report is scheduled for 20 Oct 2026. Companies can move their dates.
How much has IBKR moved on past earnings reports?
Across its last 8 reports the median two session move was 4.5%, ignoring direction. The largest was +10.4% around the report of 21 Jan 2025.
How confident is the model in this valuation?
The model's evidence grade for IBKR is low. For banks, insurers and mortgage real estate investment trusts (REITs) the grade looks at how many comparable companies there are and how closely they agree, how wide the range of outcomes is, and whether the model's valuation methods agree with each other. It is not a probability that the fair value is right, or that the price reaches it.