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 | |
|---|---|---|---|---|---|---|
1551
Manchester United
MANU
$4.17B
| $3.45M | 0.01% |
216,900
-49,727
| -19% | -$803K |
|
1552
PureCycle Technologies
PCT
$1.39B
| $3.44M | 0.01% |
400,600
+305,600
| +322% | +$3.24M |
|
1553
Excelerate Energy
EE
$1.14B
| $3.44M | 0.01% |
122,600
-111,419
| -48% | -$3.02M |
|
1554
Johnson Outdoors
JOUT
$504M
| $3.44M | 0.01% |
81,000
-7,300
| -8% | -$302K |
|
1555
Neuropace
NPCE
$501M
| $3.43M | 0.01% |
222,300
+93,200
| +72% | +$1.25M |
|
1556
Gogo Inc
GOGO
$381M
| $3.43M | 0.01% |
735,874
-585,262
| -44% | -$4.29M |
|
1557
Fidelity Wise Origin Bitcoin Fund
FBTC
$11.7B
| $3.42M | 0.01% |
44,900
+41,600
| +1,261% | +$3.63M |
|
1558
Grupo Aval
AVAL
$6.26B
| $3.42M | 0.01% |
844,860
-32,112
| -4% | -$129K |
|
|
CTEV
1559
Claritev Corp
CTEV
$680M
| $3.42M | 0.01% |
79,915
-39,148
| -33% | -$1.99M |
|
1560
Cytek Biosciences
CTKB
$608M
| $3.41M | 0.01% |
675,000
-120,544
| -15% | -$560K |
|
1561
SiTime
SITM
$21B
| $3.4M | 0.01% |
9,640
+2,440
| +34% | +$764K |
|
1562
Contango Silver & Gold Inc
CTGO
$671M
| $3.4M | 0.01% |
128,827
+74,827
| +139% | +$1.83M |
|
1563
F5
FFIV
$23.3B
| $3.4M | 0.01% |
13,314
-135,322
| -91% | -$36.4M |
|
1564
Angi Inc
ANGI
$194M
| $3.4M | 0.01% |
262,801
-531,342
| -67% | -$6.84M |
|
|
GLDD
1565
DELISTED
Great Lakes Dredge & Dock
GLDD
| $3.4M | 0.01% |
258,791
+3,735
| +1% | +$46K |
|
1566
Simpson Manufacturing
SSD
$7.92B
| $3.39M | 0.01% |
+21,000
| New | +$3.55M |
|
1567
DHI Group
DHX
$171M
| $3.39M | 0.01% |
2,187,229
+262,300
| +14% | +$496K |
|
1568
Aclaris Therapeutics
ACRS
$842M
| $3.39M | 0.01% |
1,125,331
-494,400
| -31% | -$1.25M |
|
|
ALH
1569
Alliance Laundry Holdings
ALH
$4.94B
| $3.39M | 0.01% |
+166,400
| New | +$4M |
|
|
EHAB
1570
DELISTED
Enhabit
EHAB
| $3.37M | 0.01% |
365,800
+9,500
| +3% | +$82.3K |
|
1571
Goldman Sachs Physical Gold ETF Shares
AAAU
$2.66B
| $3.37M | 0.01% |
79,100
-56,300
| -42% | -$2.31M |
|
1572
Powell Industries
POWL
$7.79B
| $3.36M | 0.01% |
31,602
-24,600
| -44% | -$2.76M |
|
1573
iShares Russell Mid-Cap ETF
IWR
$58.4B
| $3.35M | 0.01% |
34,800
+12,600
| +57% | +$1.21M |
|
1574
PC Connection
CNXN
$2.06B
| $3.34M | 0.01% |
57,900
-11,900
| -17% | -$709K |
|
1575
Northeast Community Bancorp
NECB
$371M
| $3.34M | 0.01% |
147,600
-23,800
| -14% | -$503K |
|
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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.