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 | |
|---|---|---|---|---|---|---|
|
MGIC
2026
DELISTED
Magic Software Enterprises
MGIC
| $1.57M | ﹤0.01% |
60,856
-314,356
| -84% | -$7.24M |
|
2027
Enact Holdings
ACT
$6.79B
| $1.57M | ﹤0.01% |
39,509
-115,100
| -74% | -$4.33M |
|
2028
VanEck Intermediate Muni ETF
ITM
$2.14B
| $1.57M | ﹤0.01% |
33,200
-90,334
| -73% | -$4.25M |
|
2029
Norwood Financial Corp
NWFL
$376M
| $1.57M | ﹤0.01% |
55,806
+7,981
| +17% | +$218K |
|
2030
Aviat Networks
AVNW
$282M
| $1.56M | ﹤0.01% |
73,174
-119,406
| -62% | -$2.66M |
|
2031
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$306M
| $1.56M | ﹤0.01% |
44,700
-170,200
| -79% | -$5.72M |
|
2032
Merchants Bancorp
MBIN
$2.52B
| $1.54M | ﹤0.01% |
45,300
-13,100
| -22% | -$430K |
|
|
API
2033
Agora
API
$379M
| $1.54M | ﹤0.01% |
378,300
-14,700
| -4% | -$54K |
|
|
MAPS
2034
DELISTED
WM TECHNOLOGY INC A
MAPS
| $1.54M | ﹤0.01% |
1,862,314
-375,480
| -17% | -$370K |
|
2035
Tenax Therapeutics
TENX
$68.5M
| $1.53M | ﹤0.01% |
125,579
+68,979
| +122% | +$600K |
|
2036
GrowGeneration
GRWG
$105M
| $1.53M | ﹤0.01% |
1,019,333
+270,023
| +36% | +$443K |
|
2037
Acrivon Therapeutics
ACRV
$73.6M
| $1.53M | ﹤0.01% |
634,169
+10,769
| +2% | +$23.4K |
|
2038
Ring Energy
REI
$354M
| $1.52M | ﹤0.01% |
1,750,707
-1,130,297
| -39% | -$1.08M |
|
2039
Empire State Realty Trust
ESRT
$817M
| $1.52M | ﹤0.01% |
233,600
-390,800
| -63% | -$2.79M |
|
2040
Vanguard S&P 500 Value ETF
VOOV
$6.8B
| $1.52M | ﹤0.01% |
7,400
-2,800
| -27% | -$567K |
|
2041
Sinclair Inc
SBGI
$1B
| $1.52M | ﹤0.01% |
99,071
-58,800
| -37% | -$873K |
|
2042
Definitive Healthcare
DH
$69.4M
| $1.51M | ﹤0.01% |
527,640
-142,600
| -21% | -$395K |
|
2043
Princeton Bancorp
BPRN
$295M
| $1.51M | ﹤0.01% |
43,423
-2,000
| -4% | -$65.8K |
|
|
DFUS
2044
Dimensional US Equity ETF
DFUS
$21.8B
| $1.51M | ﹤0.01% |
20,300
-8,900
| -30% | -$654K |
|
2045
J&J Snack Foods
JJSF
$1.67B
| $1.51M | ﹤0.01% |
16,656
-19,050
| -53% | -$1.73M |
|
2046
Tilly's
TLYS
$121M
| $1.5M | ﹤0.01% |
754,212
-27,600
| -4% | -$45.2K |
|
2047
Kimco Realty
KIM
$16.2B
| $1.5M | ﹤0.01% |
+74,036
| New | +$1.54M |
|
2048
Newell Brands
NWL
$2.62B
| $1.5M | ﹤0.01% |
403,348
-61,779
| -13% | -$250K |
|
2049
First Trust NASDAQ-100 Technology Index Fund
QTEC
$4.92B
| $1.5M | ﹤0.01% |
+6,500
| New | +$1.52M |
|
2050
Kosmos Energy
KOS
$1.51B
| $1.5M | ﹤0.01% |
1,647,838
+1,347,585
| +449% | +$1.78M |
|
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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.