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 | |
|---|---|---|---|---|---|---|
|
BTCI
1826
NEOS Bitcoin High Income ETF
BTCI
$1.1B
| $2.11M | ﹤0.01% |
+47,900
| New | +$2.46M |
|
1827
iShares Core S&P Small-Cap ETF
IJR
$113B
| $2.1M | ﹤0.01% |
+17,500
| New | +$2.09M |
|
1828
Culp Inc
CULP
$43.8M
| $2.1M | ﹤0.01% |
590,717
-22,200
| -4% | -$87.5K |
|
1829
Vanguard Morningstar Value ETF
VTV
$194B
| $2.1M | ﹤0.01% |
11,000
-15,400
| -58% | -$2.9M |
|
|
CAN
1830
Canaan Creative
CAN
$159M
| $2.1M | ﹤0.01% |
3,043,871
+327,999
| +12% | +$376K |
|
1831
AC Immune
ACIU
$267M
| $2.1M | ﹤0.01% |
668,867
-101,552
| -13% | -$320K |
|
1832
Air T
AIRT
$78.1M
| $2.1M | ﹤0.01% |
109,911
-1,300
| -1% | -$27.6K |
|
|
MFA
1833
MFA Financial
MFA
$925M
| $2.1M | ﹤0.01% |
225,098
+52,373
| +30% | +$488K |
|
|
BHR
1834
Braemar Hotels & Resorts
BHR
$139M
| $2.09M | ﹤0.01% |
728,900
+4,700
| +0.6% | +$12.7K |
|
1835
Knowles
KN
$3.23B
| $2.09M | ﹤0.01% |
97,374
-34,126
| -26% | -$778K |
|
1836
iShares MSCI Switzerland ETF
EWL
$2.22B
| $2.08M | ﹤0.01% |
+34,696
| New | +$1.99M |
|
1837
Orion Energy Systems
OESX
$78.9M
| $2.07M | ﹤0.01% |
134,776
+506
| +0.4% | +$6.46K |
|
1838
Lakeland Industries
LAKE
$119M
| $2.07M | ﹤0.01% |
233,902
-101,200
| -30% | -$1.42M |
|
1839
AdaptHealth
AHCO
$760M
| $2.07M | ﹤0.01% |
207,373
-15,492
| -7% | -$148K |
|
|
AAT
1840
American Assets Trust
AAT
$1.39B
| $2.07M | ﹤0.01% |
109,100
+16,400
| +18% | +$317K |
|
1841
Comstock Holding Companies
CHCI
$152M
| $2.06M | ﹤0.01% |
177,266
+6,587
| +4% | +$90.1K |
|
1842
Blue Ridge Bankshares
BRBS
$339M
| $2.05M | ﹤0.01% |
481,153
+853
| +0.2% | +$3.7K |
|
1843
The Joint Corp
JYNT
$119M
| $2.05M | ﹤0.01% |
235,378
-16,700
| -7% | -$142K |
|
1844
iShares Global 100 ETF
IOO
$9.46B
| $2.05M | ﹤0.01% |
16,200
+11,500
| +245% | +$1.43M |
|
1845
Horizon Bancorp
HBNC
$1.05B
| $2.05M | ﹤0.01% |
120,900
-53,681
| -31% | -$889K |
|
1846
Appian
APPN
$2.49B
| $2.05M | ﹤0.01% |
+57,800
| New | +$2.06M |
|
1847
Adicet Bio
ACET
$77.3M
| $2.05M | ﹤0.01% |
242,945
+128,636
| +113% | +$1.42M |
|
1848
Gossamer Bio
GOSS
$83.3M
| $2.04M | ﹤0.01% |
658,888
-2,321,300
| -78% | -$6.62M |
|
1849
Designer Brands
DBI
$311M
| $2.04M | ﹤0.01% |
+274,800
| New | +$1.32M |
|
1850
1stdibs.com
DIBS
$163M
| $2.04M | ﹤0.01% |
340,600
-79,199
| -19% | -$357K |
|
Similar funds
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.