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 | |
|---|---|---|---|---|---|---|
1751
Credit Acceptance
CACC
$6.05B
| $2.39M | ﹤0.01% |
5,388
-23,100
| -81% | -$10.7M |
|
1752
Generac Holdings
GNRC
$12.8B
| $2.39M | ﹤0.01% |
17,500
-44,800
| -72% | -$7.23M |
|
1753
Silvercrest Asset Management
SAMG
$78.6M
| $2.39M | ﹤0.01% |
157,037
-22,085
| -12% | -$321K |
|
|
HPP
1754
Hudson Pacific Properties
HPP
$777M
| $2.38M | ﹤0.01% |
219,968
-346,633
| -61% | -$5.15M |
|
1755
Paylocity
PCTY
$8.1B
| $2.38M | ﹤0.01% |
15,600
-67,600
| -81% | -$10.1M |
|
1756
Forestar Group
FOR
$1.49B
| $2.37M | ﹤0.01% |
96,380
+25,700
| +36% | +$655K |
|
1757
Orion Group Holdings
ORN
$392M
| $2.37M | ﹤0.01% |
238,197
-154,000
| -39% | -$1.49M |
|
1758
Peloton Interactive
PTON
$2.44B
| $2.37M | ﹤0.01% |
384,200
-1,334,700
| -78% | -$9.4M |
|
|
OGI
1759
Organigram Holdings
OGI
$177M
| $2.36M | ﹤0.01% |
1,405,348
+423,900
| +43% | +$729K |
|
|
PVLA
1760
Palvella Therapeutics
PVLA
$2.26B
| $2.36M | ﹤0.01% |
22,530
-67,167
| -75% | -$5.73M |
|
1761
Archer Aviation
ACHR
$5.37B
| $2.35M | ﹤0.01% |
+313,000
| New | +$2.95M |
|
1762
Vanguard Morningstar Small-Cap Growth ETF
VBK
$24.9B
| $2.34M | ﹤0.01% |
+7,760
| New | +$2.34M |
|
1763
AMREP Corp
AXR
$118M
| $2.34M | ﹤0.01% |
124,458
-3,942
| -3% | -$85.1K |
|
1764
Commercial Vehicle Group
CVGI
$130M
| $2.34M | ﹤0.01% |
1,621,963
-63,850
| -4% | -$102K |
|
1765
Vanguard Short-Term Bond ETF
BSV
$45.7B
| $2.34M | ﹤0.01% |
29,629
-371,171
| -93% | -$29.3M |
|
1766
Myriad Genetics
MYGN
$303M
| $2.33M | ﹤0.01% |
379,374
+357,700
| +1,650% | +$2.59M |
|
1767
ReposiTrak
TRAK
$152M
| $2.33M | ﹤0.01% |
188,263
-7,900
| -4% | -$112K |
|
1768
Townsquare Media
TSQ
$104M
| $2.33M | ﹤0.01% |
452,752
-20,900
| -4% | -$117K |
|
1769
Amylyx Pharmaceuticals
AMLX
$2.6B
| $2.33M | ﹤0.01% |
192,500
+172,600
| +867% | +$2.34M |
|
1770
Vanguard Russell 1000 ETF
VONE
$8.74B
| $2.32M | ﹤0.01% |
7,520
-1,780
| -19% | -$545K |
|
1771
Alpha Pro Tech
APT
$55.7M
| $2.32M | ﹤0.01% |
522,972
-12,803
| -2% | -$58.9K |
|
1772
Fate Therapeutics
FATE
$294M
| $2.32M | ﹤0.01% |
2,360,881
+1,098,366
| +87% | +$1.32M |
|
1773
BOK Financial
BOKF
$8.85B
| $2.32M | ﹤0.01% |
19,577
-21,700
| -53% | -$2.43M |
|
1774
Astrana Health
ASTH
$1.78B
| $2.31M | ﹤0.01% |
93,146
+10,346
| +12% | +$275K |
|
1775
SIGA Technologies
SIGA
$207M
| $2.31M | ﹤0.01% |
378,100
+69,600
| +23% | +$495K |
|
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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.