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JY

Jeff Yass Susquehanna International Group

AUM $1.28T
1-Year Est. Return 58.89%
 

Jeff Yass is a co-founder of Susquehanna International Group (SIG), a major global trading and market-making firm. SIG is known for options expertise, quantitative trading, and a training culture grounded in probabilistic decision-making. Yass’s firm is influential across derivatives markets even though it is less of a traditional long-only stock-picking franchise.

This Fund
S&P 500
This Quarter Est. Return
+2.72%
1 Year Est. Return
+58.89%
3 Year Est. Return
+161.44%
5 Year Est. Return
+153.95%
10 Year Est. Return
+561.69%
AUM
$868B
AUM Growth
-$6.92B
Cap. Flow
-$9.51B
Cap. Flow %
-1.1%
Top 10 Hldgs %
24.25%
Holding
14,094
New
1,864
Increased
4,890
Reduced
5,380
Closed
1,914

Sector Composition

Rank Sector Weight
1 Technology 1.7%
2 Consumer Discretionary 0.84%
3 Communication Services 0.67%
4 Financials 0.66%
5 Healthcare 0.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
MGYR icon
13101
Magyar Bancorp
MGYR
$124M
-13,490
Closed -$230K
MGTX icon
13102
CALL
MeiraGTx Holdings
MGTX
$1.42B
-46,600
Closed -$384K
MGTX icon
13103
PUT
MeiraGTx Holdings
MGTX
$1.42B
-45,000
Closed -$370K
MIR icon
13104
Mirion Technologies
MIR
$3.66B
-388,894
Closed -$9.7M
MIRM icon
13105
PUT
Mirum Pharmaceuticals
MIRM
$5.9B
-6,000
Closed -$440K
MITK icon
13106
CALL
Mitek Systems
MITK
$806M
-40,800
Closed -$399K
MJ icon
13107
Amplify Alternative Harvest ETF
MJ
$116M
-10,546
Closed -$335K
MKTW icon
13108
MarketWise
MKTW
$51.1M
-11,571
Closed -$191K
MLAB icon
13109
Mesa Laboratories
MLAB
$696M
-4,193
Closed -$281K
MLGO
13110
PUT
MicroAlgo
MLGO
$45M
-13,200
Closed -$121K
MLI icon
13111
Mueller Industries
MLI
$14B
-35,606
Closed -$1.91M
MLKN icon
13112
MillerKnoll
MLKN
$1.58B
-45,121
Closed -$736K
MLNK
13113
CALL
DELISTED
MeridianLink
MLNK
-53,200
Closed -$1.06M
MLNK
13114
PUT
DELISTED
MeridianLink
MLNK
-16,700
Closed -$333K
MLPB icon
13115
ETRACS Alerian MLP Infrastructure Index ETN Series B due Apr 2 2040
MLPB
$255M
-21,132
Closed -$528K
MMIN icon
13116
IQ MacKay Municipal Insured ETF
MMIN
$477M
-29,659
Closed -$706K
MMU
13117
Western Asset Managed Municipals Fund
MMU
$553M
-10,729
Closed -$111K
MNA icon
13118
IQ ARB Merger Arbitrage ETF
MNA
$254M
-5,915
Closed -$212K
MNDO icon
13119
Mind CTI
MNDO
$20.4M
-19,320
Closed -$21.4K
MNPR icon
13120
Monopar Therapeutics
MNPR
$747M
-4,328
Closed -$353K
MNRO icon
13121
CALL
Monro
MNRO
$402M
-43,900
Closed -$789K
MOAT icon
13122
CALL
VanEck Morningstar Wide Moat ETF
MOAT
$12.5B
-4,700
Closed -$466K
MOBX icon
13123
Mobix Labs
MOBX
$20M
-1,597
Closed -$12.9K
MOFG
13124
DELISTED
MidWestOne Financial Group
MOFG
-10,828
Closed -$395K
MOG.A icon
13125
PUT
Moog Inc Class A
MOG.A
$12B
-2,200
Closed -$457K

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Jeff Yass's Q4 2025 Portfolio in Review

As of Q4 2025, Jeff Yass held 14,094 positions worth $868B, down 0.79% from $875B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

Jeff Yass's Q4 2025 filing shows 1,864 new, 4,890 increased, 5,380 reduced and 1,914 closed positions. Its largest new stake was iShares Core MSCI Total International Stock ETF: 1,468,872 shares worth $124M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $2.08B.

By sector, the portfolio is most concentrated in Technology at 1.7% of assets, down from 1.7% a quarter earlier, followed by Consumer Discretionary and Communication Services.

  • Jeff Yass's largest Q4 2025 buy was iShares Core MSCI Total International Stock ETF: 1,468,872 shares worth $124M.
  • Jeff Yass added most to Invesco QQQ Trust in Q4 2025, an estimated $1.17B increase.
  • Jeff Yass's biggest Q4 2025 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $2.08B.
  • Jeff Yass fully exited Innovator US Equity Power Buffer ETF September in Q4 2025, selling an estimated $26.5M.
  • Jeff Yass's ten largest holdings make up 24% of its $868B portfolio in Q4 2025.
  • Jeff Yass opened 1,864 new positions and closed 1,914 in Q4 2025.
  • Jeff Yass's portfolio value fell 0.79% quarter-over-quarter to $868B.

Based on Susquehanna International Group's 13F filing for Q4 2025, filed 17 Feb 2026.