MGY Magnolia Oil & Gas Corporation

NYSE
$27.75

Magnolia Oil & Gas Corporation (MGY) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
-24.14
11 buyers / 18 sellers
SELLING
Funds compared
29
funds with comparable MGY positions
24 current holders · 23 prior-quarter holders
Net share change
-2.24M
+965.3K added, -3.20M cut
Position activity
6 new 5 increased 13 reduced 5 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
Bridgewater Associates Quant Macro New +42.9K — $1.1M 0.0% 63
CITADEL ADVISORS LLC Quant Sold Out -364.2K -100.0% $9.3M 0.0% 60
MARSHALL WACE, LLP Long/Short New +328.3K — $8.4M 0.0% 58
Tudor Investment Corporation Macro Sold Out -93.6K -100.0% $2.4M 0.0% 56
Magnetar Capital Event Quant New +32.1K — $820.3K 0.0% 55
ExodusPoint Capital Management Long/Short Quant New +20.9K — $533.6K 0.0% 52
Graham Capital Management Quant Macro New +109.5K — $2.8M 0.1% 52
Walleye Capital Long/Short Quant New +3.2K — $80.9K 0.0% 51
Y-Intercept Quant Sold Out -153.4K -100.0% $3.9M 0.0% 51
Centiva Capital Long/Short Quant Sold Out -25.2K -100.0% $643.4K 0.0% 48

Most significant buyers

By move score, not size.

  • Bridgewater Associates New · +42.9K
  • MARSHALL WACE, LLP New · +328.3K
  • Magnetar Capital New · +32.1K
  • ExodusPoint Capital Management New · +20.9K
  • Graham Capital Management New · +109.5K

Most significant sellers

By move score, not size.

  • CITADEL ADVISORS LLC Sold Out · -364.2K
  • Tudor Investment Corporation Sold Out · -93.6K
  • Y-Intercept Sold Out · -153.4K
  • Centiva Capital Sold Out · -25.2K
  • Voloridge Investment Management Reduced · -828.8K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Bridgewater Associates 1 42.9K 0 +42.9K — 0.0% New 63
CITADEL ADVISORS LLC 1 0 364.2K -364.2K -100.0% 0.0% Sold Out 60
MARSHALL WACE, LLP 2 328.3K 0 +328.3K — 0.0% New 58
Tudor Investment Corporation 2 0 93.6K -93.6K -100.0% 0.0% Sold Out 56
Magnetar Capital 2 32.1K 0 +32.1K — 0.0% New 55
ExodusPoint Capital Management 3 20.9K 0 +20.9K — 0.0% New 52
Graham Capital Management 3 109.5K 0 +109.5K — 0.1% New 52
Walleye Capital 3 3.2K 0 +3.2K — 0.0% New 51
Y-Intercept 4 0 153.4K -153.4K -100.0% 0.0% Sold Out 51
Centiva Capital 4 0 25.2K -25.2K -100.0% 0.0% Sold Out 48
Voloridge Investment Management 2 155.1K 983.9K -828.8K -84.2% 0.0% Reduced 48
Engineers Gate 4 0 8.5K -8.5K -100.0% 0.0% Sold Out 48
Schonfeld Strategic Advisors 3 14.3K 98.0K -83.7K -85.4% 0.0% Reduced 43
MILLENNIUM MANAGEMENT LLC 2 261.4K 599.0K -337.6K -56.4% 0.0% Reduced 42
Point72 Asset Management, L.P. 1 385.6K 692.6K -307.0K -44.3% 0.0% Reduced 42
Aquatic Capital Management 4 8.3K 53.6K -45.3K -84.5% 0.0% Reduced 40
Brevan Howard Capital Management 3 27.0K 128.1K -101.2K -79.0% 0.0% Reduced 40
Quantbot Technologies 4 64.4K 30.8K +33.7K +109.5% 0.1% Increased 40
Trexquant Investment 3 422.7K 258.6K +164.1K +63.4% 0.1% Increased 38
RENAISSANCE TECHNOLOGIES LLC 1 1.3M 1.7M -404.9K -23.8% 0.0% Reduced 38
Man Group 3 89.6K 204.3K -114.8K -56.2% 0.0% Reduced 37
Gotham Asset Management, LLC 2 26.6K 49.8K -23.2K -46.5% 0.0% Reduced 35
D. E. Shaw & Co., Inc. 1 47.3K 39.1K +8.3K +21.2% 0.0% Increased 32
TWO SIGMA INVESTMENTS, LP 2 1.4M 1.7M -277.1K -16.4% 0.0% Reduced 32
Edgestream Partners 4 478.7K 353.0K +125.7K +35.6% 0.4% Increased 31
Balyasny Asset Management L.P. 2 58.2K 64.5K -6.3K -9.8% 0.0% Reduced 29
AQR Capital Management 3 594.6K 497.9K +96.8K +19.4% 0.0% Increased 27
Holocene Advisors, LP 2 66.7K 68.9K -2.2K -3.2% 0.0% Reduced 25
Squarepoint Ops LLC 2 430.4K 454.9K -24.5K -5.4% 0.0% Reduced 25

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

Sign in or subscribe

Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.