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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
XPL icon
2776
Solitario Resources
XPL
$74.8M
$561K ﹤0.01%
863,530
+90,298
+12% +$56.8K
NVDY icon
2777
YieldMax NVDA Option Income Strategy ETF
NVDY
$1.47B
$561K ﹤0.01%
+33,469
New +$518K
SARK icon
2778
Tradr 2X Long Innovation ETFShort Innovation Daily ETF
SARK
$39.1M
$561K ﹤0.01%
+15,700
New +$744K
HBT icon
2779
HBT Financial
HBT
$1.35B
$560K ﹤0.01%
22,200
-14,652
-40% -$343K
GSLC icon
2780
Goldman Sachs ActiveBeta US Large Cap Equity ETF
GSLC
$16.1B
$558K ﹤0.01%
4,600
+2,100
+84% +$236K
FVCB icon
2781
FVCBankcorp
FVCB
$340M
$558K ﹤0.01%
47,275
+7,800
+20% +$87.3K
SANA icon
2782
Sana Biotechnology
SANA
$1.03B
$556K ﹤0.01%
+203,712
New +$420K
JRVR icon
2783
James River Group Holdings
JRVR
$194M
$554K ﹤0.01%
94,600
-28,806
-23% -$146K
NFGC
2784
New Found Gold
NFGC
$653M
$552K ﹤0.01%
388,828
+223,409
+135% +$288K
PRME icon
2785
Prime Medicine
PRME
$555M
$552K ﹤0.01%
223,400
-224,200
-50% -$346K
NWPX icon
2786
NWPX Infrastructure Inc
NWPX
$1.12B
$550K ﹤0.01%
13,400
-3,600
-21% -$145K
SWKH
2787
DELISTED
SWK Holdings
SWKH
$548K ﹤0.01%
37,200
+1,738
+5% +$24.6K
PRTA icon
2788
Prothena Corp
PRTA
$458M
$548K ﹤0.01%
90,200
-149,700
-62% -$1.12M
INNV icon
2789
InnovAge Holding
INNV
$1.46B
$547K ﹤0.01%
148,300
-13,300
-8% -$46.6K
TUA icon
2790
Simplify Short Term Treasury Futures Strategy ETF
TUA
$662M
$544K ﹤0.01%
24,700
-8,944
-27% -$196K
INUV icon
2791
Inuvo
INUV
$13M
$542K ﹤0.01%
117,917
+55,592
+89% +$217K
LEGH icon
2792
Legacy Housing
LEGH
$700M
$542K ﹤0.01%
+23,900
New +$559K
FULC icon
2793
Fulcrum Therapeutics
FULC
$285M
$540K ﹤0.01%
78,500
-322,600
-80% -$1.73M
OBT icon
2794
Orange County Bancorp
OBT
$525M
$540K ﹤0.01%
20,900
+11,400
+120% +$278K
BGS icon
2795
B&G Foods
BGS
$293M
$539K ﹤0.01%
127,500
-172,000
-57% -$898K
VIOT
2796
Viomi Technology
VIOT
$48.5M
$537K ﹤0.01%
397,464
+237,900
+149% +$328K
STAA icon
2797
STAAR Surgical
STAA
$1.29B
$535K ﹤0.01%
31,900
-33,500
-51% -$591K
JTEK icon
2798
JPMorgan US Tech Leaders ETF
JTEK
$4.57B
$532K ﹤0.01%
+6,300
New +$463K
MNSB icon
2799
MainStreet Bancshares
MNSB
$177M
$529K ﹤0.01%
28,000
+500
+2% +$9.1K
URA icon
2800
Global X Uranium ETF
URA
$6.32B
$528K ﹤0.01%
+13,600
New +$395K

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.