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 | |
|---|---|---|---|---|---|---|
|
TGEN
2801
Tecogen Inc
TGEN
$123M
| $268K | ﹤0.01% |
54,300
-47,900
| -47% | -$360K |
|
|
ALLR
2802
Allarity Therapeutics
ALLR
$22.6M
| $267K | ﹤0.01% |
247,612
+181,426
| +274% | +$231K |
|
2803
Westrock Coffee
WEST
$811M
| $267K | ﹤0.01% |
65,675
-42,250
| -39% | -$185K |
|
2804
Eledon Pharmaceuticals
ELDN
$292M
| $267K | ﹤0.01% |
176,990
-172,210
| -49% | -$409K |
|
2805
Fidelity MSCI Health Care Index ETF
FHLC
$3.43B
| $267K | ﹤0.01% |
3,597
-9,403
| -72% | -$677K |
|
2806
Prenetics Global
PRE
$317M
| $267K | ﹤0.01% |
16,922
-9,300
| -35% | -$135K |
|
2807
Destination XL Group
DXLG
$33.2M
| $264K | ﹤0.01% |
287,372
+1,872
| +0.7% | +$1.92K |
|
|
TAOX
2808
Tao Synergies Inc
TAOX
$26.9M
| $263K | ﹤0.01% |
71,500
-3,545
| -5% | -$24.3K |
|
2809
Mannatech
MTEX
$10.4M
| $262K | ﹤0.01% |
31,778
-1,600
| -5% | -$14.5K |
|
|
BZAI
2810
Blaize Holdings
BZAI
$161M
| $261K | ﹤0.01% |
134,063
+48,663
| +57% | +$157K |
|
2811
KLX Energy Services
KLXE
$35.1M
| $261K | ﹤0.01% |
138,000
+8,100
| +6% | +$14.2K |
|
2812
Certara
CERT
$1.22B
| $261K | ﹤0.01% |
29,600
-93,020
| -76% | -$958K |
|
2813
Sono-Tek
SOTK
$82M
| $260K | ﹤0.01% |
62,939
+24,239
| +63% | +$101K |
|
2814
IGC Pharma
IGC
$29.9M
| $259K | ﹤0.01% |
919,641
-299,324
| -25% | -$107K |
|
|
OPENL
2815
Opendoor Technologies Inc Series A Warrants
OPENL
$4.96M
| $258K | ﹤0.01% |
+496,227
| New | +$424K |
|
2816
Bogota Financial
BSBK
$113M
| $258K | ﹤0.01% |
30,551
+1,700
| +6% | +$14.5K |
|
2817
Highway Holdings
HIHO
$5.09M
| $258K | ﹤0.01% |
162,315
-7,000
| -4% | -$9.8K |
|
2818
MediciNova
MNOV
$65.5M
| $258K | ﹤0.01% |
196,800
+4,300
| +2% | +$5.93K |
|
|
ORGN
2819
DELISTED
Origin Materials
ORGN
| $257K | ﹤0.01% |
40,502
+35,772
| +756% | +$522K |
|
2820
Educational Development Corp
EDUC
$11.8M
| $257K | ﹤0.01% |
194,745
-9,800
| -5% | -$13.5K |
|
2821
Rhinebeck Bancorp
RBKB
$200M
| $255K | ﹤0.01% |
21,200
-1,400
| -6% | -$15.4K |
|
|
XRPT
2822
Volatility Shares Trust XRP 2X ETF
XRPT
$44.3M
| $254K | ﹤0.01% |
+2,580
| New | +$464K |
|
2823
Emerson Radio
MSN
$8M
| $254K | ﹤0.01% |
669,388
-5,700
| -0.8% | -$2.62K |
|
|
IRD
2824
Opus Genetics
IRD
$316M
| $254K | ﹤0.01% |
126,309
-47,500
| -27% | -$96.4K |
|
|
AOMR
2825
Angel Oak Mortgage REIT
AOMR
$208M
| $252K | ﹤0.01% |
29,300
-23,578
| -45% | -$211K |
|
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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.