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 | |
|---|---|---|---|---|---|---|
876
New Jersey Resources
NJR
$5.62B
| $14.1M | 0.02% |
314,200
+138,200
| +79% | +$6.48M |
|
877
First Trust Senior Loan Fund ETF
FTSL
$2.33B
| $14.1M | 0.02% |
306,300
+246,300
| +411% | +$11.2M |
|
878
Tower Semiconductor
TSEM
$29.4B
| $14M | 0.02% |
323,649
-107,086
| -25% | -$4.11M |
|
879
Credit Acceptance
CACC
$5.99B
| $14M | 0.02% |
27,488
+25,988
| +1,733% | +$12.8M |
|
880
Leidos
LDOS
$17.6B
| $14M | 0.02% |
88,550
-220,500
| -71% | -$32.6M |
|
881
Xtrackers USD High Yield Corporate Bond ETF
HYLB
$3.48B
| $13.9M | 0.02% |
377,700
-39,000
| -9% | -$1.41M |
|
|
VRNA
882
DELISTED
Verona Pharma
VRNA
| $13.9M | 0.02% |
147,400
+48,400
| +49% | +$3.58M |
|
883
Sportradar
SRAD
$3.84B
| $13.9M | 0.02% |
496,200
-84,500
| -15% | -$2.01M |
|
884
LSB Industries
LXU
$711M
| $13.8M | 0.02% |
1,766,593
+23,600
| +1% | +$162K |
|
885
RBC Bearings
RBC
$17.6B
| $13.8M | 0.02% |
35,800
+2,600
| +8% | +$918K |
|
|
TXNM
886
TXNM Energy Inc
TXNM
$5.91B
| $13.8M | 0.02% |
244,284
-204,500
| -46% | -$11.1M |
|
887
Bunge Global
BG
$21.5B
| $13.7M | 0.02% |
171,100
+123,000
| +256% | +$9.68M |
|
888
ZTO Express
ZTO
$17.6B
| $13.7M | 0.02% |
772,300
-414,800
| -35% | -$7.51M |
|
889
Castle Biosciences
CSTL
$960M
| $13.7M | 0.02% |
670,500
-30,700
| -4% | -$568K |
|
890
BorgWarner
BWA
$14B
| $13.7M | 0.02% |
+408,798
| New | +$12.5M |
|
|
PBPB
891
DELISTED
Potbelly
PBPB
| $13.6M | 0.02% |
1,113,554
-13,100
| -1% | -$129K |
|
892
Dole
DOLE
$1.23B
| $13.6M | 0.02% |
974,300
+45,600
| +5% | +$646K |
|
893
Realty Income
O
$59.2B
| $13.6M | 0.02% |
+236,144
| New | +$13.4M |
|
|
HDSN
894
Hudson Technologies
HDSN
$236M
| $13.6M | 0.02% |
1,671,850
+183,500
| +12% | +$1.26M |
|
895
MYR Group
MYRG
$5.18B
| $13.6M | 0.02% |
+74,800
| New | +$11M |
|
896
Host Hotels & Resorts
HST
$15.6B
| $13.5M | 0.02% |
881,800
+662,700
| +302% | +$9.82M |
|
|
PRA
897
DELISTED
ProAssurance
PRA
| $13.5M | 0.02% |
590,500
-139,200
| -19% | -$3.21M |
|
898
Atlanta Braves Holdings Series A
BATRA
$3.63B
| $13.5M | 0.02% |
273,700
-10,500
| -4% | -$464K |
|
899
Under Armour
UAA
$2.26B
| $13.4M | 0.02% |
1,968,400
-2,838,694
| -59% | -$17.7M |
|
900
FLEX LNG
FLNG
$1.6B
| $13.4M | 0.02% |
611,335
-58,862
| -9% | -$1.38M |
|
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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.