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 | |
|---|---|---|---|---|---|---|
1026
RCM Technologies
RCMT
$202M
| $10.7M | 0.01% |
452,673
-6,800
| -1% | -$137K |
|
1027
Center Bancorp
CNOB
$1.81B
| $10.6M | 0.01% |
459,746
+278,559
| +154% | +$6.35M |
|
1028
BridgeBio Pharma
BBIO
$16.4B
| $10.6M | 0.01% |
+245,946
| New | +$8.95M |
|
1029
Stanley Black & Decker
SWK
$15.5B
| $10.6M | 0.01% |
156,362
-331,400
| -68% | -$21.4M |
|
1030
TriCo Bancshares
TCBK
$1.84B
| $10.5M | 0.01% |
260,517
+38,174
| +17% | +$1.5M |
|
1031
AngioDynamics
ANGO
$651M
| $10.5M | 0.01% |
1,062,729
+166,800
| +19% | +$1.63M |
|
|
SII
1032
Sprott
SII
$3.03B
| $10.5M | 0.01% |
152,500
+33,400
| +28% | +$1.86M |
|
1033
KBR
KBR
$4.8B
| $10.5M | 0.01% |
219,700
+208,000
| +1,778% | +$10.8M |
|
1034
Zillow
ZG
$7.53B
| $10.5M | 0.01% |
153,600
+26,500
| +21% | +$1.76M |
|
1035
Innodata
INOD
$2.01B
| $10.5M | 0.01% |
204,690
-387,100
| -65% | -$15.3M |
|
1036
Harmony Gold Mining
HMY
$12.4B
| $10.5M | 0.01% |
750,447
-317,673
| -30% | -$4.8M |
|
1037
Assured Guaranty
AGO
$3.29B
| $10.5M | 0.01% |
120,000
+113,000
| +1,614% | +$9.63M |
|
|
GAP
1038
The Gap Inc
GAP
$7.29B
| $10.4M | 0.01% |
+478,700
| New | +$10.7M |
|
|
BRKL
1039
DELISTED
Brookline Bancorp
BRKL
| $10.4M | 0.01% |
989,013
-61,300
| -6% | -$637K |
|
1040
Costamare
CMRE
$1.71B
| $10.4M | 0.01% |
1,145,232
+23,000
| +2% | +$205K |
|
|
LTM
1041
LATAM Airlines Group S.A.
LTM
$15.1B
| $10.4M | 0.01% |
254,900
+84,900
| +50% | +$2.94M |
|
1042
Scholar Rock
SRRK
$6.55B
| $10.3M | 0.01% |
291,200
-26,200
| -8% | -$822K |
|
1043
Rayonier Advanced Materials
RYAM
$561M
| $10.2M | 0.01% |
2,658,046
+608,594
| +30% | +$2.56M |
|
1044
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.7B
| $10.2M | 0.01% |
+126,200
| New | +$10.2M |
|
1045
Primerica
PRI
$9.57B
| $10.2M | 0.01% |
37,300
-25,700
| -41% | -$6.81M |
|
|
UHT
1046
Universal Health Realty Income Trust
UHT
$573M
| $10.2M | 0.01% |
255,010
+400
| +0.2% | +$15.7K |
|
|
DFSD
1047
Dimensional Short-Duration Fixed Income ETF
DFSD
$7.16B
| $10.2M | 0.01% |
212,121
-153,779
| -42% | -$7.32M |
|
1048
1st Source
SRCE
$2.13B
| $10.2M | 0.01% |
163,914
-700
| -0.4% | -$41.6K |
|
1049
Reliance Steel & Aluminium
RS
$21.8B
| $10.2M | 0.01% |
+32,412
| New | +$9.57M |
|
|
SAGE
1050
DELISTED
Sage Therapeutics
SAGE
| $10.2M | 0.01% |
1,113,400
+343,700
| +45% | +$2.53M |
|
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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.