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 | |
|---|---|---|---|---|---|---|
|
DXST
3076
Decent Holding Inc
DXST
$5.65M
| $59.4K | ﹤0.01% |
1,708
+884
| +107% | +$31.3K |
|
3077
Tandy Leather Factory
TLF
$20.3M
| $58.9K | ﹤0.01% |
21,500
+745
| +4% | +$2.12K |
|
3078
Oxbridge Re Holdings
OXBR
$9.64M
| $58.5K | ﹤0.01% |
44,309
-14,691
| -25% | -$21.7K |
|
3079
BARK
BARK
$96.3M
| $58.1K | ﹤0.01% |
4,825
+2,315
| +92% | +$34.4K |
|
3080
Bionano Genomics
BNGO
$13.8M
| $56.6K | ﹤0.01% |
+37,000
| New | +$64K |
|
3081
Gain Therapeutics
GANX
$90.4M
| $56K | ﹤0.01% |
17,400
-108,700
| -86% | -$290K |
|
3082
Lulu's Fashion Lounge
LVLU
$48.5M
| $55.7K | ﹤0.01% |
+10,664
| New | +$54.7K |
|
3083
Mercer International
MERC
$32.3M
| $54.5K | ﹤0.01% |
27,511
-51,600
| -65% | -$109K |
|
|
BYAH
3084
Park Ha Biological Technology Co
BYAH
$2.51M
| $54.2K | ﹤0.01% |
+852
| New | +$103K |
|
|
PSIG
3085
PS International Group
PSIG
$17.5M
| $53.6K | ﹤0.01% |
+10,977
| New | +$44.8K |
|
3086
Wah Fu Education Group
WAFU
$6.4M
| $53K | ﹤0.01% |
34,000
-4,700
| -12% | -$8.1K |
|
|
SAGT
3087
Sagtec Global
SAGT
$13.2M
| $52.8K | ﹤0.01% |
25,500
-1,200
| -4% | -$2.47K |
|
3088
FibroBiologics
FBLG
$7.39M
| $52.1K | ﹤0.01% |
11,580
+8,590
| +287% | +$60.5K |
|
3089
Huadi International Group
HUDI
$12M
| $51.5K | ﹤0.01% |
46,000
+6,600
| +17% | +$8.54K |
|
3090
BGSF Inc
BGSF
$57.6M
| $51.4K | ﹤0.01% |
11,100
-1,900
| -15% | -$7.73K |
|
|
FATN
3091
FatPipe Inc
FATN
$96.2M
| $51.1K | ﹤0.01% |
+25,300
| New | +$90.7K |
|
3092
Urban One Class A
UONE
$23.3M
| $50.1K | ﹤0.01% |
4,860
+60
| +1% | +$737 |
|
|
AACG
3093
ATA Creativity
AACG
$39.3M
| $49.5K | ﹤0.01% |
62,644
-1,200
| -2% | -$1.37K |
|
3094
Microbot Medical
MBOT
$117M
| $49.1K | ﹤0.01% |
+24,560
| New | +$58.2K |
|
|
SACH
3095
Sachem Capital Corp
SACH
$38.4M
| $47.7K | ﹤0.01% |
45,862
+21,862
| +91% | +$23.3K |
|
3096
TOP Financial Group
TOP
$1.34B
| $47.5K | ﹤0.01% |
9,460
+1,240
| +15% | +$7.09K |
|
3097
Cenntro
CENN
$8.53M
| $43.5K | ﹤0.01% |
5,324
+3,750
| +238% | +$48K |
|
3098
ClearSign Technologies
CLIR
$28.1M
| $43.3K | ﹤0.01% |
7,780
+3,677
| +90% | +$29.3K |
|
3099
Iveda Solutions
IVDA
$4.27M
| $41.8K | ﹤0.01% |
+49,800
| New | +$55.6K |
|
3100
Kiora Pharmaceuticals
KPRX
$11.7M
| $41.8K | ﹤0.01% |
21,200
+8,800
| +71% | +$20.1K |
|
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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.