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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
+16.99%
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
$75.2B
AUM Growth
+$9.1B
Cap. Flow
+$1.81B
Cap. Flow %
2.4%
Top 10 Hldgs %
12.06%
Holding
4,018
New
612
Increased
1,577
Reduced
1,314
Closed
496

Top Buys

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$798M
2
NFLX icon
Netflix
NFLX
+$608M
3
UNH icon
UnitedHealth
UNH
+$517M
4
AAPL icon
Apple
AAPL
+$461M
5
GEV icon
GE Vernova
GEV
+$296M

Sector Composition

Rank Sector Weight
1 Technology 19.57%
2 Healthcare 15.8%
3 Consumer Discretionary 12.38%
4 Financials 11.53%
5 Industrials 8.92%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
CZNC icon
2426
Citizens & Northern Corp
CZNC
$463M
$1.16M ﹤0.01%
61,241
+10,200
+20% +$193K
PINE
2427
Alpine Income Property Trust
PINE
$348M
$1.16M ﹤0.01%
78,800
+19,800
+34% +$306K
SSTK icon
2428
Shutterstock
SSTK
$210M
$1.16M ﹤0.01%
61,101
+500
+0.8% +$8.79K
NKTX icon
2429
Nkarta
NKTX
$167M
$1.16M ﹤0.01%
696,372
-115,200
-14% -$211K
OWLT icon
2430
Owlet
OWLT
$189M
$1.16M ﹤0.01%
137,609
+68,750
+100% +$344K
PFFD icon
2431
Global X US Preferred ETF
PFFD
$2.17B
$1.15M ﹤0.01%
+61,300
New +$1.14M
EWCZ
2432
DELISTED
European Wax Center
EWCZ
$1.15M ﹤0.01%
204,500
+106,300
+108% +$483K
CWBC
2433
Community West Bancshares
CWBC
$708M
$1.15M ﹤0.01%
58,945
+2,700
+5% +$47.9K
TCRX icon
2434
TScan Therapeutics
TCRX
$51.5M
$1.15M ﹤0.01%
792,056
+622,350
+367% +$899K
OMER icon
2435
Omeros
OMER
$1.23B
$1.15M ﹤0.01%
+382,700
New +$1.91M
HOUS
2436
DELISTED
Anywhere Real Estate
HOUS
$1.15M ﹤0.01%
316,720
+99,100
+46% +$346K
MPAA icon
2437
Motorcar Parts of America
MPAA
$235M
$1.14M ﹤0.01%
102,200
+75,000
+276% +$752K
FTEC icon
2438
Fidelity MSCI Information Technology Index ETF
FTEC
$21.5B
$1.14M ﹤0.01%
5,800
+1,800
+45% +$311K
IWO icon
2439
iShares Russell 2000 Growth ETF
IWO
$15.1B
$1.14M ﹤0.01%
+4,000
New +$1.05M
IUSG icon
2440
iShares Core S&P US Growth ETF
IUSG
$33.9B
$1.14M ﹤0.01%
7,600
+6,000
+375% +$813K
NWFL icon
2441
Norwood Financial Corp
NWFL
$376M
$1.14M ﹤0.01%
44,275
+900
+2% +$22.5K
EFSC icon
2442
Enterprise Financial Services Corp
EFSC
$2.41B
$1.14M ﹤0.01%
20,700
-2,104
-9% -$110K
CLNE icon
2443
Clean Energy Fuels
CLNE
$403M
$1.14M ﹤0.01%
584,400
+245,200
+72% +$417K
RES icon
2444
RPC Inc
RES
$1.42B
$1.14M ﹤0.01%
240,700
+141,700
+143% +$682K
ELA icon
2445
Envela
ELA
$425M
$1.14M ﹤0.01%
185,869
+25,965
+16% +$161K
RICK icon
2446
RCI Hospitality Holdings
RICK
$229M
$1.14M ﹤0.01%
29,800
-9,500
-24% -$383K
CCO icon
2447
Clear Channel Outdoor Holdings
CCO
$1.19B
$1.13M ﹤0.01%
968,444
+774,044
+398% +$836K
HOG icon
2448
Harley-Davidson
HOG
$2.92B
$1.13M ﹤0.01%
+47,900
New +$1.14M
RCKT icon
2449
Rocket Pharmaceuticals
RCKT
$366M
$1.13M ﹤0.01%
461,374
+122,900
+36% +$623K
IPSC icon
2450
Century Therapeutics
IPSC
$348M
$1.13M ﹤0.01%
2,022,500
+837,182
+71% +$449K

Similar funds

Jim Simons's Q2 2025 Portfolio in Review

As of Q2 2025, Jim Simons held 4,018 positions worth $75.2B, up 14% from $66.1B the previous quarter. Its ten largest holdings account for 12% of the portfolio.

Jim Simons's Q2 2025 filing shows 612 new, 1,577 increased, 1,314 reduced and 496 closed positions. Its largest new stake was UnitedHealth: 1,352,129 shares worth $422M. The largest sale was Broadcom, an estimated $527M.

By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 17% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Jim Simons's largest Q2 2025 buy was UnitedHealth: 1,352,129 shares worth $422M.
  • Jim Simons added most to NVIDIA in Q2 2025, an estimated $798M increase.
  • Jim Simons's biggest Q2 2025 reduction was Broadcom, cutting an estimated $527M.
  • Jim Simons fully exited Advanced Micro Devices in Q2 2025, selling an estimated $328M.
  • Jim Simons's ten largest holdings make up 12% of its $75.2B portfolio in Q2 2025.
  • Jim Simons opened 612 new positions and closed 496 in Q2 2025.
  • Jim Simons's portfolio value rose 14% quarter-over-quarter to $75.2B.

Based on Renaissance Technologies's 13F filing for Q2 2025, filed 13 Aug 2025.