Interactive Brokers Group (IBKR) stock split history
Interactive Brokers Group has split its stock once since 2025. The latest was a 4-for-1 split on 18 Jun 2025: each share held before became 4 shares. The close on 17 Jun 2025 was $208.17 and the first close on or after the effective date, 18 Jun 2025, was $52.60 (prices as traded). Below: every split, what it did to the share count, and the chart with splits marked.
All IBKR stock splits
| Effective date | Split | Close before | First close after | Shares today per 1 held before |
|---|---|---|---|---|
| 18 Jun 2025 | 4-for-1 | $208.17 | $52.60 | 4 |
Split is new shares for old shares: in a 10-for-1 split one share becomes ten. Close before is the last close before the effective date and first close after is the first close on or after it, both as traded in IBKR's own history (not adjusted), so the two differ by about the split ratio plus that day's market move. Shares today shows how many shares one share held just before that split has become after it and every later split. Dates and ratios: EODHD.
IBKR price chart with splits marked
The chart shows split-adjusted prices, so the price does not jump on a split date; each split is marked on the date axis. Use the buttons to change the range.
How to read IBKR's split history
A stock split changes the number of shares and the price per share by the same factor, so the value of a holding stays the same on the day. Interactive Brokers Group's 4-for-1 split on 18 Jun 2025 is the latest in our data: each share held before became 4 shares.
A split does not change what a company earns or what it is worth. Per-share figures such as earnings and dividends per share are restated by the ratio, which is why old prices look different in an adjusted chart than in the newspaper of the day. The IBKR stock page has the current score and fair value range, and the IBKR price history lists daily prices with both as-traded and adjusted closes.
Recent splits in the same sector: Financials
| Company | Latest split | Date |
|---|---|---|
| WRB Berkley W R | 3-for-2 | 11 Jul 2024 |
| NDAQ Nasdaq | 3-for-1 | 29 Aug 2022 |
| RJF Raymond James Financial | 3-for-2 | 22 Sep 2021 |
| ACGL Arch Capital Group | 3-for-1 | 21 Jun 2018 |
| BRO Brown & Brown | 2-for-1 | 29 Mar 2018 |
| FISV Fiserv | 2-for-1 | 20 Mar 2018 |
| AFL Aflac | 2-for-1 | 19 Mar 2018 |
| ICE Intercontinental Exchange | 5-for-1 | 4 Nov 2016 |
Frequently asked questions
When did Interactive Brokers Group last split its stock?
The last IBKR stock split in our data took effect on 18 Jun 2025. It was a 4-for-1 split: each share held before became 4 shares. The close on 17 Jun 2025 was $208.17 and the first close on or after the effective date, 18 Jun 2025, was $52.60 (prices as traded).
How many times has Interactive Brokers Group split its stock?
Interactive Brokers Group (IBKR) has had 1 stock split since 18 Jun 2025 in our data, which goes back to 1990. One share held just before it is 4 shares today.
Has Interactive Brokers Group announced a new stock split?
Our data lists no split for IBKR after 18 Jun 2025 and no announced future one as of 22 Oct 2026. A company announces a split first, usually together with earnings or in a filing, and the split takes effect weeks later. The company's 8-K filings and press releases are the primary source.
What does a 4-for-1 split mean for shareholders?
In a 4-for-1 split the number of shares goes up and the price per share goes down by the same factor: each share held before became 4 shares. The total value of a holding is not changed by the split itself; it only changes with the market price afterwards.
Does a stock split change what a company is worth?
No. A split cuts the same company into more (or fewer) pieces, so market value, earnings and dividends per share are all restated by the ratio. Charts and per-share figures in our data are adjusted for splits so that past and present prices can be compared.
Where does this split data come from?
Split dates and ratios come from EODHD. The closing prices around each split are the as-traded closes in our database. Feed entries that are only price-adjustment factors for spin-offs or special distributions are not counted as splits.
Related
Educational information, not financial advice. Split data to 22 Oct 2026; a company can announce a split at any time.