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 | |
|---|---|---|---|---|---|---|
926
Customers Bancorp
CUBI
$2.8B
| $9.79M | 0.02% |
133,920
-57,200
| -30% | -$3.92M |
|
927
OGE Energy
OGE
$9.69B
| $9.79M | 0.02% |
229,200
+191,800
| +513% | +$8.56M |
|
928
Franklin Electric
FELE
$4.75B
| $9.76M | 0.02% |
102,200
-13,400
| -12% | -$1.28M |
|
929
HCI Group
HCI
$2.28B
| $9.76M | 0.02% |
50,895
-20,124
| -28% | -$3.79M |
|
930
Trex
TREX
$5.05B
| $9.73M | 0.02% |
277,500
-286,100
| -51% | -$11.6M |
|
931
DigitalBridge
DBRG
$2.95B
| $9.73M | 0.02% |
634,512
-541,164
| -46% | -$6.5M |
|
932
LivaNova
LIVN
$4.53B
| $9.73M | 0.02% |
158,100
-36,494
| -19% | -$2.09M |
|
933
Southwest Gas
SWX
$6.68B
| $9.63M | 0.01% |
120,400
-85,900
| -42% | -$6.88M |
|
934
NewMarket
NEU
$8.72B
| $9.61M | 0.01% |
13,983
-817
| -6% | -$624K |
|
935
Ocular Therapeutix
OCUL
$2.25B
| $9.61M | 0.01% |
+791,200
| New | +$9.61M |
|
936
Vitamin Cottage Natural Grocers
NGVC
$632M
| $9.59M | 0.01% |
382,999
-95,910
| -20% | -$3.07M |
|
937
JPMorgan Income ETF
JPIE
$10.3B
| $9.58M | 0.01% |
206,988
-501,553
| -71% | -$23.2M |
|
938
UBS Group
UBS
$176B
| $9.57M | 0.01% |
206,591
-1,396,600
| -87% | -$56.4M |
|
|
BAND
939
Bandwidth Inc
BAND
$1.67B
| $9.56M | 0.01% |
618,900
-30,000
| -5% | -$455K |
|
940
Ooma
OOMA
$553M
| $9.54M | 0.01% |
813,103
-55,700
| -6% | -$635K |
|
941
Popular Inc
BPOP
$11.2B
| $9.53M | 0.01% |
76,525
-44,500
| -37% | -$5.26M |
|
942
Honda
HMC
$40.6B
| $9.5M | 0.01% |
322,100
-162,100
| -33% | -$4.92M |
|
943
Atlanta Braves Holdings Series B
BATRK
$3.41B
| $9.48M | 0.01% |
240,242
-337,179
| -58% | -$13.3M |
|
944
Hayward Holdings
HAYW
$3.25B
| $9.43M | 0.01% |
610,447
+125,000
| +26% | +$1.98M |
|
945
Regional Management Corp
RM
$297M
| $9.42M | 0.01% |
243,137
+33,200
| +16% | +$1.28M |
|
946
ESAB
ESAB
$5.35B
| $9.42M | 0.01% |
84,300
+63,800
| +311% | +$7.3M |
|
947
Columbia Financial
CLBK
$1.21B
| $9.38M | 0.01% |
603,732
-42,600
| -7% | -$661K |
|
948
Omnicom Group
OMC
$23.5B
| $9.38M | 0.01% |
116,185
-1,053,215
| -90% | -$80.5M |
|
949
Fox Factory Holding Corp
FOXF
$886M
| $9.37M | 0.01% |
547,693
+408,800
| +294% | +$7.79M |
|
|
GTLS
950
DELISTED
Chart Industries
GTLS
| $9.34M | 0.01% |
45,300
-186,100
| -80% | -$37.7M |
|
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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.