RHUMBLINE ADVISERS

Position in IBKR — Interactive Brokers Group, Inc.

CIK 1115418 BOSTON, MA

Position in IBKR

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$51,408,148

+$1,796,585 QoQ

Shares Held

766,485

-0.6% QoQ

Ownership

0.172%

of shares outstanding

% of Portfolio

0.05%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 60.32225027234715.ToString("F0")% Shared 0.ToString("F0")% None 39.67774972765285.ToString("F0")%

Financial Services · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $1,472,696,182 across 46 Capital Markets names. IBKR ranks #5 (3.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GS	Goldman Sachs Group Inc	501,345	$424,132,856
2	MS	Morgan Stanley	2,149,365	$353,720,998
3	SCHW	Schwab Charles Corp	2,890,722	$271,670,053
4	HOOD	Robinhood Markets, Inc.	1,318,086	$91,343,359
5	IBKR	Interactive Brokers Group, Inc. This page	766,485	$51,408,148
6	LPLA	LPL Financial Holdings Inc.	101,065	$30,403,383
7	EVR	Evercore Inc.	100,437	$29,981,448
8	SF	Stifel Financial Corp	389,919	$28,822,812

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$51,408,148	766,485	-0.6%	Shares	Sole	2026-05-12
2025-12-31	$49,611,563	771,444	-1.6%	Shares	Sole	2026-02-13
2025-09-30	$53,938,576	783,877	-38.4%	Shares	Sole	2025-11-06
2025-06-30	$70,565,854	1,273,522	+298.6%	Shares	Sole	2025-08-12
2025-03-31	$13,226,708	319,505	+13.5%	Shares	Sole	2025-05-29
2024-12-31	$12,429,529	281,418	-0.8%	Shares	Sole	2025-05-29
2024-09-30	$9,878,847	283,549	-22.2%	Shares	Sole	2024-11-12
2024-06-30	$11,176,062	364,635	+25.0%	Shares	Sole	2024-08-01
2024-03-31	$8,145,725	291,674	-3.7%	Shares	Sole	2024-05-09
2023-12-31	$6,274,327	302,742	-2.3%	Shares	Sole	2024-02-08
2023-09-30	$6,702,578	309,731	+2.4%	Shares	Sole	2023-11-09
2023-06-30	$6,282,916	302,536	+4.3%	Shares	Sole	2023-08-08
2023-03-31	$5,986,673	290,052	-1.2%	Shares	Sole	2023-05-11
2022-12-31	$5,308,174	293,472	+4.6%	Shares	Sole	2023-02-14
2022-09-30	$4,484,452	280,673	+14.3%	Shares	Sole	2022-11-10
2022-06-30	$3,375,867	245,473	+15.4%	Shares	Sole	2022-08-11
2022-03-31	$3,505,126	212,722	+3.0%	Shares	Sole	2022-05-12
2021-12-31	$4,099,759	206,485	+3.9%	Shares	Sole	2022-02-10
2021-09-30	$3,098,142	198,790	+1.6%	Shares	Sole	2021-11-12
2021-06-30	$3,216,711	195,753	+1.0%	Shares	Sole	2021-08-05
2021-03-31	$3,538,221	193,769	-0.8%	Shares	Sole	2021-05-06
2020-12-31	$2,974,860	195,329	+6.5%	Shares	Sole	2021-02-10
2020-09-30	$2,215,120	183,333	-1.5%	Shares	Sole	2020-11-12
2020-06-30	$1,943,171	186,083	+1.3%	Shares	Sole	2020-08-13
2020-03-31	$1,982,636	183,705	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.