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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
APLE icon
2251
Apple Hospitality REIT
APLE
$3.78B
$1.6M ﹤0.01%
137,500
-16,100
-10% -$189K
ORI icon
2252
Old Republic International
ORI
$10.3B
$1.6M ﹤0.01%
41,685
-20,400
-33% -$768K
SDY icon
2253
State Street SPDR S&P Dividend ETF
SDY
$22.2B
$1.6M ﹤0.01%
11,800
-17,600
-60% -$2.33M
CBNK icon
2254
Capital Bancorp
CBNK
$621M
$1.6M ﹤0.01%
47,500
+800
+2% +$24.5K
CXDO icon
2255
Crexendo
CXDO
$218M
$1.59M ﹤0.01%
262,400
+82,000
+45% +$428K
BRK.B icon
2256
Berkshire Hathaway Class B
BRK.B
$1.08T
$1.59M ﹤0.01%
3,268
+1,232
+61% +$626K
PFIS icon
2257
Peoples Financial Services
PFIS
$718M
$1.59M ﹤0.01%
32,112
-1,800
-5% -$83.4K
VLUE icon
2258
iShares MSCI USA Value Factor ETF
VLUE
$9.78B
$1.58M ﹤0.01%
14,000
+6,000
+75% +$633K
CHCI icon
2259
Comstock Holding Companies
CHCI
$167M
$1.58M ﹤0.01%
156,979
+800
+0.5% +$7.95K
GROY icon
2260
Gold Royalty Corp
GROY
$736M
$1.58M ﹤0.01%
715,700
-102,500
-13% -$180K
PPLI
2261
People Inc
PPLI
$3.02B
$1.57M ﹤0.01%
+42,127
New +$1.52M
CBFV icon
2262
CB Financial Services
CBFV
$190M
$1.57M ﹤0.01%
55,116
+6,217
+13% +$177K
LION icon
2263
Lionsgate Studios
LION
$3.57B
$1.57M ﹤0.01%
+270,272
New +$1.81M
MXCT icon
2264
MaxCyte
MXCT
$138M
$1.56M ﹤0.01%
717,800
+349,900
+95% +$847K
CCCC icon
2265
C4 Therapeutics
CCCC
$493M
$1.56M ﹤0.01%
1,093,188
+878,688
+410% +$1.28M
AMWL icon
2266
American Well
AMWL
$221M
$1.56M ﹤0.01%
175,423
+500
+0.3% +$3.57K
ATXS
2267
DELISTED
Astria Therapeutics
ATXS
$1.55M ﹤0.01%
289,778
+110,617
+62% +$536K
CATO icon
2268
Cato Corp
CATO
$67.3M
$1.55M ﹤0.01%
551,302
-9,200
-2% -$24.5K
PLYM
2269
DELISTED
Plymouth Industrial REIT
PLYM
$1.55M ﹤0.01%
96,392
-40,820
-30% -$638K
SYPR icon
2270
Sypris Solutions
SYPR
$49.9M
$1.54M ﹤0.01%
698,821
-12,900
-2% -$23.2K
AXGN icon
2271
Axogen
AXGN
$2.56B
$1.54M ﹤0.01%
142,000
+80,000
+129% +$1.05M
VV icon
2272
Vanguard Morningstar Large-Cap ETF
VV
$54.9B
$1.54M ﹤0.01%
+5,400
New +$1.42M
DFSV
2273
Dimensional US Small Cap Value ETF
DFSV
$8.48B
$1.54M ﹤0.01%
52,300
-10,400
-17% -$288K
KBE icon
2274
State Street SPDR S&P Bank ETF
KBE
$1.75B
$1.54M ﹤0.01%
+27,600
New +$1.44M
DFLV icon
2275
Dimensional US Large Cap Value ETF
DFLV
$7.04B
$1.54M ﹤0.01%
+49,500
New +$1.47M

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.