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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
+3.01%
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
$63.9B
AUM Growth
-$531M
Cap. Flow
+$1.07B
Cap. Flow %
1.67%
Top 10 Hldgs %
11.2%
Holding
3,809
New
624
Increased
1,320
Reduced
1,262
Closed
596

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$800M
2
NVDA icon
NVIDIA
NVDA
+$304M
3
AVGO icon
Broadcom
AVGO
+$261M
4
LIN icon
Linde
LIN
+$237M
5
JPM icon
JPMorgan Chase
JPM
+$208M

Top Sells

Rank Stock Value
1
COST icon
Costco
COST
+$656M
2
NFLX icon
Netflix
NFLX
+$632M
3
TSLA icon
Tesla
TSLA
+$474M
4
PG icon
Procter & Gamble
PG
+$428M
5
MU icon
Micron Technology
MU
+$332M

Sector Composition

Rank Sector Weight
1 Technology 22.04%
2 Healthcare 15.35%
3 Industrials 11.13%
4 Consumer Discretionary 10.88%
5 Financials 10.52%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ROST icon
1026
Ross Stores
ROST
$79.6B
$8.95M 0.01%
+41,300
New +$8.23M
TERN
1027
DELISTED
Terns Pharmaceuticals
TERN
$8.91M 0.01%
169,034
-297,813
-64% -$12.2M
UHT
1028
Universal Health Realty Income Trust
UHT
$573M
$8.91M 0.01%
220,110
-7,000
-3% -$290K
APG icon
1029
APi Group
APG
$18.8B
$8.88M 0.01%
219,250
-7,200
-3% -$305K
ADT icon
1030
ADT
ADT
$5.34B
$8.88M 0.01%
1,351,406
-1,585,800
-54% -$11.9M
ST icon
1031
Sensata Technologies
ST
$6.72B
$8.87M 0.01%
251,900
-259,300
-51% -$9.18M
FLR icon
1032
Fluor
FLR
$6.96B
$8.86M 0.01%
+189,900
New +$8.85M
HDSN
1033
Hudson Technologies
HDSN
$236M
$8.84M 0.01%
1,504,250
-193,000
-11% -$1.32M
CURB
1034
Curbline Properties
CURB
$3.46B
$8.83M 0.01%
342,501
+233,684
+215% +$5.99M
TH icon
1035
Target Hospitality
TH
$1.61B
$8.83M 0.01%
951,302
+40,878
+4% +$324K
FSTR icon
1036
Foster
FSTR
$405M
$8.83M 0.01%
316,382
-14,200
-4% -$419K
ATRC icon
1037
AtriCure
ATRC
$2.22B
$8.81M 0.01%
308,700
-13,200
-4% -$450K
ETOR
1038
eToro Group
ETOR
$2.26B
$8.8M 0.01%
292,950
+100,100
+52% +$3.06M
AVAV icon
1039
AeroVironment
AVAV
$9.81B
$8.78M 0.01%
47,976
-64,880
-57% -$17.1M
SAIC icon
1040
Saic
SAIC
$5.34B
$8.78M 0.01%
92,450
+1,700
+2% +$167K
VONG icon
1041
Vanguard Russell 1000 Growth ETF
VONG
$45.7B
$8.74M 0.01%
+79,700
New +$9.31M
PYPL icon
1042
PayPal
PYPL
$50.6B
$8.74M 0.01%
+193,200
New +$9.32M
WWW icon
1043
Wolverine World Wide
WWW
$1.48B
$8.72M 0.01%
534,045
+281,845
+112% +$4.97M
AMSF icon
1044
AMERISAFE
AMSF
$517M
$8.71M 0.01%
261,375
+42,375
+19% +$1.53M
GRC icon
1045
Gorman-Rupp
GRC
$2.15B
$8.7M 0.01%
140,031
-32,584
-19% -$1.93M
KWEB icon
1046
KraneShares CSI China Internet ETF
KWEB
$5.45B
$8.69M 0.01%
305,700
-818,300
-73% -$26.8M
NGVT icon
1047
Ingevity
NGVT
$2.62B
$8.69M 0.01%
122,000
+35,800
+42% +$2.45M
IOSP icon
1048
Innospec
IOSP
$2.29B
$8.68M 0.01%
118,900
-1,400
-1% -$109K
SNAP icon
1049
Snap
SNAP
$8.79B
$8.67M 0.01%
1,885,600
-3,231,800
-63% -$19M
TCOM icon
1050
Trip.com Group
TCOM
$28.7B
$8.66M 0.01%
173,912
-62,800
-27% -$3.66M
40 41
42
43 44

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Jim Simons's Q1 2026 Portfolio in Review

As of Q1 2026, Jim Simons held 3,809 positions worth $63.9B, down 0.82% from $64.5B the previous quarter. Its ten largest holdings account for 11% of the portfolio.

Jim Simons's Q1 2026 filing shows 624 new, 1,320 increased, 1,262 reduced and 596 closed positions. Its largest new stake was Apple: 3,075,638 shares worth $781M. The largest sale was Costco, an estimated $656M.

By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 21% a quarter earlier, followed by Healthcare and Industrials.

  • Jim Simons's largest Q1 2026 buy was Apple: 3,075,638 shares worth $781M.
  • Jim Simons added most to NVIDIA in Q1 2026, an estimated $304M increase.
  • Jim Simons's biggest Q1 2026 reduction was Costco, cutting an estimated $656M.
  • Jim Simons fully exited Procter & Gamble in Q1 2026, selling an estimated $428M.
  • Jim Simons's ten largest holdings make up 11% of its $63.9B portfolio in Q1 2026.
  • Jim Simons opened 624 new positions and closed 596 in Q1 2026.
  • Jim Simons's portfolio value fell 0.82% quarter-over-quarter to $63.9B.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.