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 |
Costco
COST
|
+$616M |
| 2 |
Netflix
NFLX
|
+$481M |
| 3 |
Micron Technology
MU
|
+$416M |
| 4 |
Tesla
TSLA
|
+$416M |
| 5 |
Procter & Gamble
PG
|
+$322M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$885M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$660M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$463M |
| 4 |
Applovin
APP
|
+$430M |
| 5 |
Meta Platforms (Facebook)
META
|
+$354M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 20.84% |
| 2 | Healthcare | 15.77% |
| 3 | Consumer Discretionary | 13.88% |
| 4 | Industrials | 9.94% |
| 5 | Financials | 8.79% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
976
Foster
FSTR
$405M
| $8.91M | 0.01% |
330,582
-13,400
| -4% | -$362K |
|
|
UHT
977
Universal Health Realty Income Trust
UHT
$573M
| $8.9M | 0.01% |
227,110
-23,100
| -9% | -$901K |
|
|
CAI
978
Caris Life Sciences
CAI
$6.27B
| $8.9M | 0.01% |
329,900
+104,800
| +47% | +$2.95M |
|
979
Tradr TSLA Bear Daily ETF
TSLQ
$99.9M
| $8.89M | 0.01% |
+489,500
| New | +$10.9M |
|
980
Envista
NVST
$4.61B
| $8.86M | 0.01% |
408,265
-166,200
| -29% | -$3.41M |
|
981
Preformed Line Products
PLPC
$2.29B
| $8.85M | 0.01% |
42,816
-33,472
| -44% | -$7.13M |
|
982
Patrick Industries
PATK
$2.79B
| $8.84M | 0.01% |
81,503
-97,200
| -54% | -$10.2M |
|
|
AHL
983
DELISTED
Aspen Insurance
AHL
| $8.82M | 0.01% |
237,700
+109,000
| +85% | +$4.02M |
|
984
Artesian Resources
ARTNA
$362M
| $8.8M | 0.01% |
278,456
+400
| +0.1% | +$12.9K |
|
985
Legend Biotech
LEGN
$3.93B
| $8.76M | 0.01% |
402,800
-440,400
| -52% | -$12.6M |
|
986
Hanmi Financial
HAFC
$956M
| $8.73M | 0.01% |
322,852
+103,300
| +47% | +$2.76M |
|
987
Atmos Energy
ATO
$28.7B
| $8.72M | 0.01% |
52,000
-21,400
| -29% | -$3.7M |
|
988
Community Trust Bancorp
CTBI
$1.44B
| $8.71M | 0.01% |
154,173
-14,109
| -8% | -$780K |
|
989
GoodRx Holdings
GDRX
$1.27B
| $8.7M | 0.01% |
3,210,938
-258,400
| -7% | -$848K |
|
990
Fox Class A
FOXA
$27.5B
| $8.69M | 0.01% |
118,909
-37,791
| -24% | -$2.47M |
|
991
Cleveland-Cliffs
CLF
$6.99B
| $8.68M | 0.01% |
653,359
+360,700
| +123% | +$4.55M |
|
992
Frontline
FRO
$9.02B
| $8.67M | 0.01% |
397,338
-372,962
| -48% | -$8.72M |
|
993
Accel Entertainment
ACEL
$1B
| $8.67M | 0.01% |
759,505
-41,600
| -5% | -$438K |
|
994
APi Group
APG
$18.8B
| $8.66M | 0.01% |
226,450
-1,645,200
| -88% | -$60.8M |
|
|
MIAX
995
Miami International Holdings
MIAX
$4.36B
| $8.66M | 0.01% |
+195,099
| New | +$8.7M |
|
996
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.9B
| $8.64M | 0.01% |
111,200
-230,400
| -67% | -$18M |
|
997
Gilat Satellite Networks
GILT
$895M
| $8.64M | 0.01% |
667,346
-219,238
| -25% | -$2.82M |
|
998
Natural Gas Services Group
NGS
$474M
| $8.63M | 0.01% |
256,442
-44,500
| -15% | -$1.33M |
|
|
DCH
999
Dauch Corp
DCH
$1.61B
| $8.61M | 0.01% |
1,343,899
| – | – |
|
1000
TriCo Bancshares
TCBK
$1.84B
| $8.6M | 0.01% |
181,543
-30,900
| -15% | -$1.42M |
|
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Jim Simons's Q4 2025 Portfolio in Review
As of Q4 2025, Jim Simons held 3,923 positions worth $64.5B, down 15% from $75.8B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons withdrew a net $10.1B in Q4 2025, closing 737 positions and reducing 1,682 holdings. Its most notable exit was Meta Platforms (Facebook), an estimated $354M position sold in full.
By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in ServiceNow worth $204M.
- Jim Simons's largest Q4 2025 buy was ServiceNow: 1,331,977 shares worth $204M.
- Jim Simons added most to Costco in Q4 2025, an estimated $616M increase.
- Jim Simons's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $885M.
- Jim Simons fully exited Meta Platforms (Facebook) in Q4 2025, selling an estimated $354M.
- Jim Simons's ten largest holdings make up 12% of its $64.5B portfolio in Q4 2025.
- Jim Simons opened 466 new positions and closed 737 in Q4 2025.
- Jim Simons's portfolio value fell 15% quarter-over-quarter to $64.5B.
Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.