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Jim Simons

Jim Simons Renaissance Technologies

AUM $72.6B
1-Year Est. Return 54.88%
 

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
+54.88%
3 Year Est. Return
+169.34%
5 Year Est. Return
+186.18%
10 Year Est. Return
+887.93%
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
INTC icon
1101
Intel
INTC
$527B
$8.43M 0.01%
370,994
-4,287,000
-92% -$93.8M
ANGO icon
1102
AngioDynamics
ANGO
$647M
$8.41M 0.01%
895,929
-17,100
-2% -$180K
FYBR
1103
DELISTED
Frontier Communications
FYBR
$8.41M 0.01%
+234,500
New +$8.38M
SNDX icon
1104
Syndax Pharmaceuticals
SNDX
$1.7B
$8.37M 0.01%
681,427
+462
+0.1% +$6.52K
PBI icon
1105
Pitney Bowes
PBI
$2.28B
$8.33M 0.01%
920,971
+53,000
+6% +$480K
LNT icon
1106
Alliant Energy
LNT
$18.2B
$8.31M 0.01%
+129,200
New +$7.9M
LKFT
1107
Lakefront Biotherapeutics American Depositary Shares
LKFT
$1.84B
$8.31M 0.01%
330,800
+34,700
+12% +$877K
MNKD icon
1108
MannKind Corp
MNKD
$1.2B
$8.3M 0.01%
1,649,745
+668,100
+68% +$3.74M
POWL icon
1109
Powell Industries
POWL
$7.43B
$8.27M 0.01%
145,605
-328,500
-69% -$22.9M
FPE icon
1110
First Trust Preferred Securities and Income ETF
FPE
$6.34B
$8.26M 0.01%
+469,688
New +$8.34M
KNOP icon
1111
KNOT Offshore Partners
KNOP
$366M
$8.26M 0.01%
1,182,835
+29,133
+3% +$168K
NE icon
1112
Noble Corp
NE
$7.07B
$8.25M 0.01%
+348,290
New +$9.97M
KN icon
1113
Knowles
KN
$3.23B
$8.25M 0.01%
542,574
+288,974
+114% +$5.17M
CARG icon
1114
CarGurus
CARG
$3.38B
$8.23M 0.01%
282,427
+142,600
+102% +$4.99M
ACH
1115
Accendra Health
ACH
$84.6M
$8.21M 0.01%
908,850
-169,250
-16% -$1.79M
SWTX
1116
DELISTED
SpringWorks Therapeutics
SWTX
$8.2M 0.01%
+185,900
New +$8.56M
DMC
1117
Del Monte Corp
DMC
$1.44B
$8.18M 0.01%
265,300
+54,500
+26% +$1.67M
MUR icon
1118
Murphy Oil
MUR
$4.99B
$8.16M 0.01%
287,400
+179,300
+166% +$5.06M
ASAN icon
1119
Asana
ASAN
$2.28B
$8.14M 0.01%
558,600
-58,748
-10% -$1.11M
JILL icon
1120
J. Jill
JILL
$283M
$8.11M 0.01%
415,500
-49,000
-11% -$1.17M
IRDM icon
1121
Iridium Communications
IRDM
$5.27B
$8.11M 0.01%
296,699
+280,669
+1,751% +$8.23M
HFWA icon
1122
Heritage Financial
HFWA
$1.23B
$8.09M 0.01%
332,430
+86,700
+35% +$2.11M
NWE icon
1123
NorthWestern Energy
NWE
$4.4B
$8.09M 0.01%
139,726
+131,400
+1,578% +$7.14M
CGNX icon
1124
Cognex
CGNX
$10.4B
$8.06M 0.01%
270,350
-86,450
-24% -$3.04M
AIG icon
1125
American International
AIG
$39.8B
$8.06M 0.01%
+92,700
New +$7.2M
43 44
45
46 47

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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.