Question 1

Which hedge funds and institutional investors hold OPEN?

Accepted Answer

StonkWhisper tracks 13F filings submitted to the SEC by institutional investment managers with over $100 million in assets. The whale tracker for OPEN shows which major funds hold positions, their portfolio weight, share counts, and how those positions changed quarter over quarter.

Question 2

What does conviction level mean for OPEN whale holdings?

Accepted Answer

Conviction level reflects how significant OPEN is within a fund's overall portfolio. A high-conviction position means the manager has allocated a large percentage of their portfolio to OPEN, suggesting strong directional confidence in the stock.

Question 3

How current is the whale data for OPEN?

Accepted Answer

Institutional 13F filings are required within 45 days of each calendar quarter end (March 31, June 30, September 30, December 31). StonkWhisper processes filings as they are published on SEC EDGAR, so data reflects the most recently reported quarter.

Question 4

What do quarter-over-quarter changes tell me about OPEN?

Accepted Answer

QoQ changes for OPEN show whether institutional managers are increasing, decreasing, initiating, or exiting their positions. New positions and significant increases can signal growing institutional conviction, while exits or decreases may indicate waning confidence.

Manager	Shares	Value	% of Portfolio	Manager AUM
American Century	14.2M	$66.5M	0.0%	$194.3B
Renaissance Tech	11.8M	$55.3M	0.1%	$63.9B
Millennium	10.8M	$50.7M	0.0%	$240.3B
Citadel	9.8M	$45.8M	0.0%	$618.5B
Two Sigma	6.8M	$31.7M	0.0%	$123.9B
State Street	6.0M	$28.0M	0.0%	$2896.4B
Citadel	4.8M	$22.6M	0.0%	$618.5B
DE Shaw	3.4M	$16.0M	0.0%	$166.3B
Citadel	2.1M	$9.9M	0.0%	$618.5B
Geode Capital	1.8M	$8.6M	0.0%	$1607.5B
Marshall Wace	1.6M	$7.4M	0.0%	$100.4B
DE Shaw	826.0K	$3.9M	0.0%	$166.3B
Tudor	640.8K	$3.0M	0.0%	$53.9B
DFA	484.8K	$2.3M	0.0%	$481.4B
Brevan Howard	351.1K	$1.6M	0.0%	$11.3B
AQR Capital	307.8K	$1.4M	0.0%	$218.4B
Hudson Bay	283.2K	$1.3M	0.0%	$29.0B
Schonfeld	207.8K	$973K	0.0%	$14.2B
Man Group	155.4K	$727K	0.0%	$55.1B
BlackRock	100.0K	$468K	—	$5723.5B
ExodusPoint	67.0K	$313K	0.0%	$12.4B
Tudor	50.8K	$238K	0.0%	$53.9B
Polen Capital	17.5K	$82K	0.0%	$14.5B
Northern Trust	5.3K	$25K	—	$756.6B
Fidelity (FMR)	513	$2K	—	$1898.4B

OPEN

Who Holds OPEN

Changes This Quarter