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 | |
|---|---|---|---|---|---|---|
|
AIFA
3126
All In FutureTech Alliance Inc
AIFA
$17.7M
| $27.1K | ﹤0.01% |
11,532
+6,299
| +120% | +$20.7K |
|
3127
Energy Focus
EFOI
$19.2M
| $26.6K | ﹤0.01% |
+11,500
| New | +$28.4K |
|
|
ORIO
3128
Orion Digital Corp
ORIO
$19.8M
| $26.5K | ﹤0.01% |
24,800
-28,983
| -54% | -$41.2K |
|
|
BTTC
3129
Black Titan Corp
BTTC
$7.9M
| $26.5K | ﹤0.01% |
+15,841
| New | +$65.5K |
|
|
RNTX
3130
Rein Therapeutics
RNTX
$68.9M
| $26.3K | ﹤0.01% |
22,700
+4,402
| +24% | +$6.07K |
|
3131
Alight
ALIT
$377M
| $25.5K | ﹤0.01% |
+655
| New | +$32.6K |
|
|
ANEB
3132
DELISTED
Anebulo Pharmaceuticals
ANEB
| $25.3K | ﹤0.01% |
25,098
-3,402
| -12% | -$7.76K |
|
3133
Versus Systems
VS
$8.2M
| $24.7K | ﹤0.01% |
20,267
-4,973
| -20% | -$8.24K |
|
3134
CollPlant Biotechnologies
CLGN
$6.04M
| $24.6K | ﹤0.01% |
17,600
-4,300
| -20% | -$8.8K |
|
3135
Polar Power
POLA
$7.13M
| $24.4K | ﹤0.01% |
+14,600
| New | +$45.1K |
|
|
SAFX
3136
XCF Global Inc
SAFX
$196M
| $24.4K | ﹤0.01% |
+89,300
| New | +$69.5K |
|
3137
CCSC Technology International Holdings
CCTG
$10.8M
| $24.3K | ﹤0.01% |
+15,902
| New | +$103K |
|
|
REE
3138
DELISTED
REE Automotive
REE
| $23.3K | ﹤0.01% |
31,777
-531
| -2% | -$469 |
|
3139
KALA BIO
KALA
$17.1M
| $22.7K | ﹤0.01% |
+818
| New | +$36.6K |
|
3140
Milestone Scientific
MLSS
$46.8M
| $22.6K | ﹤0.01% |
82,897
+2,600
| +3% | +$989 |
|
|
MRDN
3141
Meridian Holdings Inc
MRDN
$178M
| $22.4K | ﹤0.01% |
2,333
+1,383
| +146% | +$15.1K |
|
|
NCT
3142
Intercont (Cayman) Ltd
NCT
$34.4M
| $22.1K | ﹤0.01% |
+4,623
| New | +$96.7K |
|
3143
Amesite
AMST
$6.75M
| $21.6K | ﹤0.01% |
+11,403
| New | +$32.1K |
|
3144
ZW Data Action Technologies
CNET
$4.88M
| $21.5K | ﹤0.01% |
15,825
+200
| +1% | +$352 |
|
3145
Bluejay Diagnostics
BJDX
$1.09M
| $21.4K | ﹤0.01% |
+8,025
| New | +$52.7K |
|
|
TDTH
3146
Trident Digital Tech Holdings Ltd Class B Ordinary Shares
TDTH
$2.48B
| $19.7K | ﹤0.01% |
+2,183
| New | +$41.4K |
|
3147
Planet Image International
YIBO
$69.3M
| $19.6K | ﹤0.01% |
20,682
-5,918
| -22% | -$6.94K |
|
|
CURX
3148
Curanex Pharmaceuticals
CURX
$6.41M
| $19.6K | ﹤0.01% |
+59,297
| New | +$32.6K |
|
3149
Scienjoy Holding
SJ
$36.9M
| $19.5K | ﹤0.01% |
28,104
-2,440
| -8% | -$1.43K |
|
|
PW
3150
Power REIT
PW
$2.92M
| $19.4K | ﹤0.01% |
2,222
-530
| -19% | -$4.52K |
|
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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.