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 | |
|---|---|---|---|---|---|---|
1851
iShares Core 1-5 Year USD Bond ETF
ISTB
$5.14B
| $2.04M | ﹤0.01% |
41,800
-231,300
| -85% | -$11.3M |
|
1852
Atlas Energy Solutions
AESI
$1.47B
| $2.04M | ﹤0.01% |
+216,300
| New | +$2.19M |
|
1853
Cabot Corp
CBT
$4.45B
| $2.03M | ﹤0.01% |
30,700
-4,100
| -12% | -$273K |
|
1854
Charles River Laboratories
CRL
$13.4B
| $2.03M | ﹤0.01% |
+10,200
| New | +$1.85M |
|
|
LITS
1855
Lite Strategy Inc
LITS
$31.4M
| $2.03M | ﹤0.01% |
1,541,422
+522,741
| +51% | +$987K |
|
1856
abrdn Physical Gold Shares ETF
SGOL
$7.42B
| $2.03M | ﹤0.01% |
49,500
-356,300
| -88% | -$14.1M |
|
1857
U-Haul Holding Co Series N
UHAL.B
$12.7B
| $2.03M | ﹤0.01% |
43,400
+14,300
| +49% | +$696K |
|
1858
Sagimet Biosciences
SGMT
$577M
| $2.03M | ﹤0.01% |
342,500
+181,100
| +112% | +$1.3M |
|
1859
iShares US Financials ETF
IYF
$4.44B
| $2.02M | ﹤0.01% |
15,700
+2,100
| +15% | +$263K |
|
1860
Accuray
ARAY
$32.9M
| $2.02M | ﹤0.01% |
2,452,607
-31,677
| -1% | -$39.6K |
|
1861
iShares US Technology ETF
IYW
$25.7B
| $2.02M | ﹤0.01% |
10,100
-6,900
| -41% | -$1.38M |
|
|
YSG
1862
Yatsen Holding
YSG
$315M
| $2.02M | ﹤0.01% |
518,307
-22,400
| -4% | -$142K |
|
|
ETHT
1863
ProShares Ultra Ether ETF
ETHT
$182M
| $2.01M | ﹤0.01% |
+53,520
| New | +$3.14M |
|
|
AHRT
1864
AH Realty Trust
AHRT
$501M
| $2.01M | ﹤0.01% |
303,743
-236,066
| -44% | -$1.56M |
|
1865
Crane NXT
CXT
$2.96B
| $2.01M | ﹤0.01% |
+42,700
| New | +$2.52M |
|
1866
ProKidney
PROK
$289M
| $2.01M | ﹤0.01% |
895,705
+763,705
| +579% | +$2.01M |
|
1867
Savara
SVRA
$1.08B
| $2M | ﹤0.01% |
332,100
+72,000
| +28% | +$353K |
|
1868
Direxion Daily Homebuilders & Supplies Bull 3X ETF
NAIL
$594M
| $2M | ﹤0.01% |
+40,300
| New | +$2.39M |
|
1869
AirSculpt Technologies
AIRS
$244M
| $1.99M | ﹤0.01% |
+1,005,464
| New | +$6.1M |
|
1870
WisdomTree Japan Hedged Equity Fund
DXJ
$7.55B
| $1.99M | ﹤0.01% |
13,800
+6,800
| +97% | +$932K |
|
1871
Clearwater Paper
CLW
$356M
| $1.99M | ﹤0.01% |
+114,300
| New | +$2.11M |
|
1872
CB Financial Services
CBFV
$192M
| $1.98M | ﹤0.01% |
56,877
-3,322
| -6% | -$113K |
|
1873
iShares MSCI USA Value Factor ETF
VLUE
$9.72B
| $1.98M | ﹤0.01% |
14,500
-23,500
| -62% | -$3.08M |
|
1874
Bristow Group
VTOL
$1.36B
| $1.98M | ﹤0.01% |
54,100
+40,827
| +308% | +$1.54M |
|
|
BTM
1875
DELISTED
Bitcoin Depot
BTM
| $1.98M | ﹤0.01% |
219,233
+24,129
| +12% | +$370K |
|
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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.