Ole Andreas Halvorsen
Viking Global Investors
Ole Andreas Halvorsen Interactive Brokers Group Inc stake
total: 670
Viking Global Investors IBKR trades
- Total transactions:
- 2
- New positions:
- 1
- Added:
- 1
- Held since:
- 2026 Q1
- Held for:
- 2 quarters
- Latest activity:
- 2026 Q2
According to 2026 Q2 report, Ole Andreas Halvorsen holds 4,830,748 Interactive Brokers Group Inc (IBKR) shares with a market value of roughly $420.47M accounting for 1.20% of the overall portfolio. To date, the estimated cost basis is nearly $81.28 for "buy" trades. Viking Global Investors first purchased IBKR in 2026 Q1, initially acquiring about 1.39M shares. Since the initial investment in Interactive Brokers Group Inc (IBKR), Viking Global Investors has made 1 more transaction.
When did Ole Andreas Halvorsen buy Interactive Brokers Group Inc (IBKR)?
Ole Andreas Halvorsen first invested in Interactive Brokers Group Inc (IBKR) in 2026 Q1 at the reported quarter-end price of $67.07 per share.
What's the cost basis of Viking Global Investors's IBKR stake?
The estimated cost basis for Interactive Brokers Group Inc (IBKR) stake is around $81.28 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $81.28
Ole Andreas Halvorsen's historical trades in Interactive Brokers Group Inc
2 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q2
|
1.20%
|
4,830,748
|
$87.04
|
$420,468,306
|
+246.46% (+3,436,419)
|
+0.85%
|
|
2026 Q1
|
0.26%
|
1,394,329
|
$67.07
|
$93,517,646
|
new
|
+0.26%
|
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.