Borsa Italiana · 1IBKR · stock
Interactive Brokers Group, Inc. (1IBKR) stock price history
Every Borsa Italiana trading session of Interactive Brokers Group, Inc. from May 13, 2025 to Sep 29, 2026: 352 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
1IBKR adjusted close, 2025 to 2026
- €84.64
- All time high, 2026
- €85.31
- 52 week high, €53.63 low
- 352
- Daily sessions since 2025
Last updated Sep 29, 2026, the last stored session. Refreshes after each trading day. Full 2025 to 2026 series and minute bars.
1IBKR key facts
- Interactive Brokers Group, Inc. (1IBKR) closed at €75.88 on Sep 29, 2026 on Borsa Italiana.
- 1IBKR's all time high close is €84.64, set on Jul 15, 2026; its all time low close is €43.40 on Jun 23, 2025.
- 1IBKR's 52 week range is €53.63 to €85.31.
- 1IBKR returned +41.5% over the year to Sep 29, 2026.
- Since May 13, 2025 1IBKR returned +67%, +45.3% a year compounded.
- 1IBKR's deepest drawdown was -14.0% from Jan 27, 2026 to Mar 23, 2026.
- DataCedar holds 352 daily sessions of 1IBKR history from May 13, 2025 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
1IBKR price chart, 2025 to 2026
1IBKR returns
Price return from the last close on or before the window start to Sep 29, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -8.8% |
| 3 months | -9.6% |
| 6 months | +33.0% |
| Year to date | +37.8% |
| 1 year | +41.5% |
| 3 years | n/a |
| 5 years | n/a |
| 10 years | n/a |
| Since May 13, 2025 | +67.4% |
| Compound annual growth, 1.4 years | +45.3% |
1IBKR records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- €84.64 on Jul 15, 2026
- All time low close
- €43.40 on Jun 23, 2025
- 52 week high
- €85.31 on Jul 16, 2026
- 52 week low
- €53.63 on Oct 1, 2025
- Deepest drawdown
- -14.0% from Jan 27, 2026 to Mar 23, 2026, recovered Apr 14, 2026
- Best single session
- +15.6% on Jan 19, 2026
- Worst single session
- -11.4% on May 26, 2026
- Volatility, 1 year annualised
- 38.0%
- Sessions closing higher, 1 year
- 20%
1IBKR price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2025 starts on May 13, 2025; 2026 runs to Sep 29, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | €55.08 | €85.31 | €55.08 | €75.88 | +37.8% | 10.2K | 190 |
| 2025 | €44.28 | €62.13 | €41.23 | €55.08 | n/a | 4.3K | 162 |
1IBKR monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | €75.88 | -7.3% |
| August 2026 | €81.88 | +5.1% |
| July 2026 | €77.90 | -7.2% |
| June 2026 | €83.92 | +14.4% |
| May 2026 | €73.36 | +9.1% |
| April 2026 | €67.26 | +19.5% |
| March 2026 | €56.29 | -9.3% |
| February 2026 | €62.04 | -1.0% |
| January 2026 | €62.70 | +13.8% |
| December 2025 | €55.08 | +0.6% |
| November 2025 | €54.75 | -9.4% |
| October 2025 | €60.44 | +12.7% |
About the 1IBKR data
Daily bars. 352 sessions from May 13, 2025 to Sep 29, 2026, one row per Borsa Italiana trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Sep 17, 2026 forward, most recent session Sep 21, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are Borsa Italiana trading days; minute timestamps are UTC. Prices are in EUR. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to May 13, 2025, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/1IBKR/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Borsa Italiana
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Common questions
1IBKR share price history
