Jim Simons Renaissance Technologies
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.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$798M |
| 2 |
Netflix
NFLX
|
+$608M |
| 3 |
UnitedHealth
UNH
|
+$517M |
| 4 |
Apple
AAPL
|
+$461M |
| 5 |
GE Vernova
GEV
|
+$296M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$527M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$372M |
| 3 |
Meta Platforms (Facebook)
META
|
+$362M |
| 4 |
Advanced Micro Devices
AMD
|
+$328M |
| 5 |
Palantir
PLTR
|
+$327M |
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 | |
|---|---|---|---|---|---|---|
3151
Zura Bio
ZURA
$554M
| $214K | ﹤0.01% |
204,133
-218,090
| -52% | -$261K |
|
3152
UTStarcom
UTSI
$23M
| $213K | ﹤0.01% |
76,388
-10,441
| -12% | -$25.7K |
|
|
ASPSZ
3153
Altisource Portfolio Solutions SA Cash Exercise Stakeholder Warrants
ASPSZ
$7.05M
| $213K | ﹤0.01% |
+417,522
| New | +$215K |
|
|
NOTE
3154
DELISTED
FiscalNote
NOTE
| $213K | ﹤0.01% |
+33,047
| New | +$248K |
|
|
3155
Broadcom
AVGO
$1.99T
| $212K | ﹤0.01% |
764
-2,426,950
| -100% | -$527M |
|
3156
McCormick & Company Voting
MKC.V
$14.2B
| $211K | ﹤0.01% |
+2,800
| New | +$210K |
|
3157
First Capital
FCAP
$220M
| $211K | ﹤0.01% |
+5,100
| New | +$229K |
|
3158
iShares S&P Mid-Cap 400 Growth ETF
IJK
$11.3B
| $209K | ﹤0.01% |
+2,300
| New | +$197K |
|
3159
Avalon Holdings
AWX
$10.7M
| $209K | ﹤0.01% |
83,985
+2,675
| +3% | +$6.71K |
|
3160
KLX Energy Services
KLXE
$36M
| $208K | ﹤0.01% |
111,300
+11,000
| +11% | +$22.9K |
|
|
SSY
3161
DELISTED
SunLink Health Systems
SSY
| $207K | ﹤0.01% |
235,578
-2,700
| -1% | -$2.45K |
|
3162
NN Inc
NNBR
$298M
| $206K | ﹤0.01% |
98,200
-12,900
| -12% | -$25.7K |
|
3163
Citi Trends
CTRN
$617M
| $206K | ﹤0.01% |
+6,157
| New | +$157K |
|
3164
Comscore
SCOR
$108M
| $205K | ﹤0.01% |
42,521
+500
| +1% | +$2.55K |
|
3165
Gray Television
GTN
$520M
| $205K | ﹤0.01% |
+45,200
| New | +$175K |
|
3166
Eli Lilly
LLY
$1.08T
| $205K | ﹤0.01% |
261
-96,051
| -100% | -$74.6M |
|
3167
Escalade
ESCA
$284M
| $205K | ﹤0.01% |
14,630
+1,100
| +8% | +$16.2K |
|
|
ASPSW
3168
Altisource Portfolio Solutions SA Net Settle Stakeholder Warrants
ASPSW
$12M
| $203K | ﹤0.01% |
+406,122
| New | +$191K |
|
3169
Cartesian Therapeutics
RNAC
$262M
| $203K | ﹤0.01% |
+19,500
| New | +$208K |
|
3170
FlexShares High Yield Value-Scored Bond Index Fund
HYGV
$1.11B
| $201K | ﹤0.01% |
+4,900
| New | +$196K |
|
3171
Bluerock Homes Trust
BHM
$35.7M
| $200K | ﹤0.01% |
16,000
-400
| -2% | -$4.39K |
|
3172
Cardlytics
CDLX
$24.7M
| $198K | ﹤0.01% |
+12,058
| New | +$208K |
|
3173
Luxfer Holdings
LXFR
$457M
| $197K | ﹤0.01% |
16,200
+6,200
| +62% | +$69.4K |
|
3174
Comtech Telecommunications
CMTL
$52.1M
| $197K | ﹤0.01% |
80,400
+7,400
| +10% | +$13.3K |
|
3175
AYTU BioPharma
AYTU
$25.3M
| $196K | ﹤0.01% |
89,913
+13,090
| +17% | +$20.3K |
|
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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.