Question 1

Which hedge funds and institutional investors hold MBI?

Accepted Answer

StonkWhisper tracks 13F filings submitted to the SEC by institutional investment managers with over $100 million in assets. The whale tracker for MBI 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 MBI whale holdings?

Accepted Answer

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

Question 3

How current is the whale data for MBI?

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 MBI?

Accepted Answer

QoQ changes for MBI 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
State Street	1.1M	$6.3M	0.0%	$2896.4B
Renaissance Tech	409.9K	$2.4M	0.0%	$63.9B
Tudor	349.0K	$2.1M	0.0%	$53.9B
Geode Capital	180.9K	$1.1M	0.0%	$1607.5B
Citadel	87.1K	$515K	0.0%	$618.5B
BlackRock	74.8K	$442K	—	$5723.5B
Citadel	49.2K	$291K	—	$618.5B
Invesco	47.0K	$278K	—	$653.3B
Citadel	43.5K	$257K	—	$618.5B
ExodusPoint	33.4K	$197K	0.0%	$12.4B
DE Shaw	24.5K	$145K	0.0%	$166.3B
Point72	21.5K	$127K	0.0%	$78.1B
Two Sigma	16.9K	$100K	0.0%	$123.9B
Brevan Howard	15.5K	$91K	0.0%	$11.3B
Franklin Templeton	13.1K	$77K	—	$408.3B
Millennium	11.8K	$69K	—	$240.3B
Northern Trust	4.9K	$29K	—	$756.6B
AQR Capital	3.0K	$18K	—	$218.4B
Fidelity (FMR)	2.1K	$13K	—	$1898.4B

MBI

Who Holds MBI

Changes This Quarter