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Jim Simons

Jim Simons Renaissance Technologies

AUM $63.9B
1-Year Est. Return 45.56%
 

Jim Simons is the founder of Renaissance Technologies, one of the most successful quantitative hedge funds in the world. Before his career in finance, he served as a mathematics professor and made significant contributions to differential geometry. Simons applied his analytical expertise to develop sophisticated, algorithm-driven trading strategies, earning consistently high returns for investors.

This Fund
S&P 500
This Quarter Est. Return
+1.01%
1 Year Est. Return
+45.56%
3 Year Est. Return
+129.95%
5 Year Est. Return
+153.6%
10 Year Est. Return
+738.31%
AUM
$66.1B
AUM Growth
-$1.48B
Cap. Flow
+$425M
Cap. Flow %
0.64%
Top 10 Hldgs %
10.65%
Holding
3,989
New
456
Increased
1,472
Reduced
1,441
Closed
583

Top Buys

Rank Stock Value
1
AVGO icon
Broadcom
AVGO
+$513M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$412M
3
META icon
Meta Platforms (Facebook)
META
+$354M
4
NOW icon
ServiceNow
NOW
+$262M
5
AAL icon
American Airlines Group
AAL
+$259M

Top Sells

Rank Stock Value
1
PLTR icon
Palantir
PLTR
+$571M
2
AAPL icon
Apple
AAPL
+$571M
3
NFLX icon
Netflix
NFLX
+$388M
4
NVDA icon
NVIDIA
NVDA
+$313M
5
TSM icon
TSMC
TSM
+$211M

Sector Composition

Rank Sector Weight
1 Technology 17.32%
2 Healthcare 15.28%
3 Consumer Discretionary 11.85%
4 Financials 11.11%
5 Industrials 8.48%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SEG
3926
Seaport Entertainment Group
SEG
$374M
– –
-95,421
Closed -$2.67M
CTOR
3927
Citius Oncology
CTOR
$69.7M
– –
-11,196
Closed -$12.9K
PTIR
3928
GraniteShares 2x Long PLTR Daily ETF
PTIR
$404M
– –
-61,500
Closed -$538K
INVX
3929
Innovex International
INVX
$2.09B
– –
-52,059
Closed -$727K
GLXG
3930
Galaxy Payroll Group
GLXG
$7.63M
– –
-1,808
Closed -$17.9K
ZBIO
3931
Zenas BioPharma
ZBIO
$2.03B
– –
-38,400
Closed -$314K
SCNX
3932
Scienture Holdings
SCNX
$15.2M
– –
-20,100
Closed -$122K
PC
3933
Premium Catering Holdings
PC
– –
-4,556
Closed -$29.1K
FVR
3934
FrontView REIT
FVR
$482M
– –
-41,400
Closed -$751K
NIXX
3935
Nixxy Inc
NIXX
$16.3M
– –
-17,600
Closed -$92.6K
WCT
3936
Wellchange Holdings
WCT
$3.99M
– –
-848
Closed -$40.7K
SKYQ
3937
Sky Quarry Inc
SKYQ
$15.9M
– –
-3,824
Closed -$35.2K
CBLL
3938
CeriBell Inc
CBLL
$816M
– –
-41,900
Closed -$1.08M
MAGN
3939
Magnera Corp
MAGN
$443M
– –
-36,704
Closed -$667K
UOKA
3940
DELISTED
MDJM Ltd
UOKA
– –
-18
Closed -$3.2K
XYZ
3941
Block Inc
XYZ
$46.9B
– –
-258,700
Closed -$22M
LAR
3942
Lithium Argentina AG
LAR
$1.11B
– –
-56,750
Closed -$149K
SGI
3943
Somnigroup International
SGI
$13.6B
– –
-282,200
Closed -$16M
NWTG
3944
Newton Golf Co
NWTG
$5.83M
– –
-5,743
Closed -$72.3K
VIVS
3945
VivoSim Labs
VIVS
$1.18M
– –
-2,636
Closed -$14.5K
BECN
3946
DELISTED
Beacon Roofing Supply, Inc.
BECN
– –
-68,757
Closed -$6.98M
PYCR
3947
DELISTED
Paycor HCM, Inc. Common Stock
PYCR
– –
-113,100
Closed -$2.1M
BACK
3948
DELISTED
IMAC Holdings, Inc. Common Stock
BACK
– –
-13,600
Closed -$17.3K
EDR
3949
DELISTED
Endeavor Group Holdings, Inc.
EDR
– –
-66,100
Closed -$2.07M
ACHL
3950
DELISTED
Achilles Therapeutics
ACHL
– –
-547,233
Closed -$624K
156 157
158
159 160

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Jim Simons's Q1 2025 Portfolio in Review

As of Q1 2025, Jim Simons held 3,989 positions worth $66.1B, down 2.2% from $67.6B the previous quarter. Its ten largest holdings account for 11% of the portfolio.

Jim Simons's Q1 2025 filing shows 456 new, 1,472 increased, 1,441 reduced and 583 closed positions. Its largest new stake was ServiceNow: 1,361,505 shares worth $217M. The largest sale was Palantir, an estimated $571M.

By sector, the portfolio is most concentrated in Technology at 17% of assets, down from 21% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Jim Simons's largest Q1 2025 buy was ServiceNow: 1,361,505 shares worth $217M.
  • Jim Simons added most to Broadcom in Q1 2025, an estimated $513M increase.
  • Jim Simons's biggest Q1 2025 reduction was Palantir, cutting an estimated $571M.
  • Jim Simons fully exited Nike in Q1 2025, selling an estimated $197M.
  • Jim Simons's ten largest holdings make up 11% of its $66.1B portfolio in Q1 2025.
  • Jim Simons opened 456 new positions and closed 583 in Q1 2025.
  • Jim Simons's portfolio value fell 2.2% quarter-over-quarter to $66.1B.

Based on Renaissance Technologies's 13F filing for Q1 2025, filed 14 May 2025.