Jeremy Grantham's IBKR Position Overview
Jeremy Grantham (via Grantham, Mayo, Van Otterloo & Co. LLC) currently holds 21,049 shares of Interactive Brokers Group, Inc. (IBKR) worth $1.83 M, representing 0.00% of the portfolio. First purchased in 2013-Q4, this long-term strategic position has been held for 30 quarters.
Based on 13F filings, Jeremy Grantham has maintained a strategic position in IBKR, demonstrating sustained confidence in this investment. Largest addition occurred in Q3 2014, adding 3.46 M shares. Largest reduction occurred in Q2 2018, reducing 2.36 M shares.
Analysis based on 13F filings available since 2013 Q2
Jeremy Grantham's Interactive Brokers Group (IBKR) Holding Value Over Time
Track share changes against reported price movement
Quarterly Interactive Brokers Group (IBKR) Trades by Jeremy Grantham
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2026 | +21,049 | New Buy | 21,049 | $87.04 |
| Q1 2021 | -990,480 | Sold Out | 0 | $0.00 |
| Q2 2020 | -200,000 | Reduce 16.80% | 990,480 | $10.44 |
| Q1 2020 | -388,608 | Reduce 24.61% | 1.19 M | $10.79 |
| Q4 2019 | -200,000 | Reduce 11.24% | 1.58 M | $11.65 |
| Q3 2019 | -632,000 | Reduce 26.21% | 1.78 M | $13.45 |
| Q1 2019 | +416,000 | Add 20.85% | 2.41 M | $12.97 |
| Q2 2018 | -2.36 M | Reduce 54.14% | 2 M | $16.10 |
| Q1 2018 | -1 M | Reduce 18.69% | 4.35 M | $16.81 |
| Q4 2017 | -1.04 M | Reduce 16.27% | 5.35 M | $14.80 |
| Q1 2016 | +1.51 M | Add 30.95% | 6.39 M | $9.83 |
| Q4 2015 | -669,404 | Reduce 12.06% | 4.88 M | $10.90 |
| Q1 2015 | +6,400 | Add 0.12% | 5.55 M | $8.51 |
| Q4 2014 | +2.08 M | Add 60.20% | 5.54 M | $7.29 |
| Q3 2014 | +3.46 M | New Buy | 3.46 M | $6.24 |
| Q1 2014 | -50,652 | Sold Out | 0 | $0.00 |
| Q4 2013 | +50,652 | New Buy | 50,652 | $6.08 |
Jeremy Grantham's Interactive Brokers Group Investment FAQs
Jeremy Grantham first purchased Interactive Brokers Group, Inc. (IBKR) in Q4 2013, acquiring 50,652 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Jeremy Grantham has held Interactive Brokers Group, Inc. (IBKR) for 30 quarters since Q4 2013.
Jeremy Grantham's largest addition to Interactive Brokers Group, Inc. (IBKR) was in Q3 2014, adding 3,460,000 shares worth $21.58 M.
According to the latest 13F filing for Q2 2026, Jeremy Grantham's firm, Grantham, Mayo, Van Otterloo & Co. LLC, owns 21,049 shares of Interactive Brokers Group, Inc. (IBKR), valued at approximately $1.83 M.
As of the Q2 2026 filing, Interactive Brokers Group, Inc. (IBKR) represents approximately 0.00% of Jeremy Grantham's publicly disclosed stock portfolio, making it one of their key holdings.
Jeremy Grantham's peak holding in Interactive Brokers Group, Inc. (IBKR) was 6,390,176 shares, as reported at the end of Q1 2016.