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 | |
|---|---|---|---|---|---|---|
1226
Bilibili
BILI
$7.25B
| $5.64M | 0.01% |
+229,435
| New | +$6.17M |
|
1227
Invesco Senior Loan ETF
BKLN
$6.76B
| $5.64M | 0.01% |
268,458
-3,154,742
| -92% | -$66M |
|
1228
GFL Environmental
GFL
$15B
| $5.63M | 0.01% |
+131,161
| New | +$5.86M |
|
1229
CNB Financial Corp
CCNE
$1.04B
| $5.63M | 0.01% |
215,145
-35,000
| -14% | -$888K |
|
1230
DXP Enterprises
DXPE
$3.01B
| $5.62M | 0.01% |
51,209
-33,900
| -40% | -$3.69M |
|
1231
BlackBerry
BB
$5.24B
| $5.62M | 0.01% |
1,482,390
-1,880,653
| -56% | -$8.27M |
|
1232
ICL Group
ICL
$7.14B
| $5.61M | 0.01% |
982,276
-163,200
| -14% | -$945K |
|
1233
Advance Auto Parts
AAP
$3.39B
| $5.61M | 0.01% |
142,650
+129,900
| +1,019% | +$6.51M |
|
1234
NexGen Energy
NXE
$7.06B
| $5.6M | 0.01% |
+609,200
| New | +$5.38M |
|
1235
RE/MAX Holdings
RMAX
$278M
| $5.6M | 0.01% |
738,265
-48,104
| -6% | -$390K |
|
1236
Palisade Bio
PALI
$359M
| $5.6M | 0.01% |
+2,382,500
| New | +$4.58M |
|
1237
iShares Russell 1000 Growth ETF
IWF
$129B
| $5.58M | 0.01% |
47,200
+32,800
| +228% | +$3.89M |
|
|
HTBK
1238
DELISTED
Heritage Commerce
HTBK
| $5.58M | 0.01% |
464,700
-23,700
| -5% | -$257K |
|
1239
Equity Residential
EQR
$24.7B
| $5.58M | 0.01% |
88,466
-78,734
| -47% | -$4.83M |
|
1240
Bath & Body Works
BBWI
$3.91B
| $5.57M | 0.01% |
277,233
-2,325,000
| -89% | -$51.3M |
|
1241
Future Fuel
FF
$252M
| $5.55M | 0.01% |
1,740,100
-84,400
| -5% | -$303K |
|
1242
iShares MSCI Japan ETF
EWJ
$23.3B
| $5.54M | 0.01% |
+68,563
| New | +$5.63M |
|
1243
Cousins Properties
CUZ
$4.93B
| $5.53M | 0.01% |
214,631
-322,300
| -60% | -$8.38M |
|
1244
ArcelorMittal
MT
$56.2B
| $5.52M | 0.01% |
121,171
-236,800
| -66% | -$9.73M |
|
|
TRUE
1245
DELISTED
TrueCar
TRUE
| $5.52M | 0.01% |
2,442,599
+370,398
| +18% | +$794K |
|
1246
Allegiant Air
ALGT
$2.38B
| $5.51M | 0.01% |
64,600
-88,800
| -58% | -$6.35M |
|
1247
Affiliated Managers Group
AMG
$9.7B
| $5.51M | 0.01% |
19,100
-48,200
| -72% | -$12.5M |
|
1248
Southern Missouri Bancorp
SMBC
$850M
| $5.5M | 0.01% |
93,015
-20,719
| -18% | -$1.15M |
|
|
MNTN
1249
MNTN Inc
MNTN
$940M
| $5.48M | 0.01% |
459,189
+338,189
| +279% | +$4.87M |
|
1250
Relay Therapeutics
RLAY
$4.32B
| $5.48M | 0.01% |
647,899
-375,211
| -37% | -$2.68M |
|
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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.