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 |
Apple
AAPL
|
+$800M |
| 2 |
NVIDIA
NVDA
|
+$304M |
| 3 |
Broadcom
AVGO
|
+$261M |
| 4 |
Linde
LIN
|
+$237M |
| 5 |
JPMorgan Chase
JPM
|
+$208M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Costco
COST
|
+$656M |
| 2 |
Netflix
NFLX
|
+$632M |
| 3 |
Tesla
TSLA
|
+$474M |
| 4 |
Procter & Gamble
PG
|
+$428M |
| 5 |
Micron Technology
MU
|
+$332M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 22.04% |
| 2 | Healthcare | 15.35% |
| 3 | Industrials | 11.13% |
| 4 | Consumer Discretionary | 10.88% |
| 5 | Financials | 10.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1226
iRhythm Holdings
IRTC
$4.13B
| $6.35M | 0.01% |
53,800
-50,100
| -48% | -$7.23M |
|
1227
WesBanco
WSBC
$4.07B
| $6.35M | 0.01% |
184,047
-36,434
| -17% | -$1.27M |
|
1228
Oshkosh
OSK
$9.61B
| $6.33M | 0.01% |
+43,000
| New | +$6.7M |
|
1229
DXP Enterprises
DXPE
$3.04B
| $6.3M | 0.01% |
45,109
-6,100
| -12% | -$818K |
|
1230
Atea Pharmaceuticals
AVIR
$405M
| $6.28M | 0.01% |
1,166,400
-22,100
| -2% | -$101K |
|
1231
OraSure Technologies
OSUR
$259M
| $6.25M | 0.01% |
2,083,303
-61,700
| -3% | -$176K |
|
|
NAK
1232
Northern Dynasty Minerals
NAK
$953M
| $6.24M | 0.01% |
+4,460,149
| New | +$7.76M |
|
|
GTLS
1233
DELISTED
Chart Industries
GTLS
| $6.24M | 0.01% |
30,200
-15,100
| -33% | -$3.13M |
|
1234
Weatherford International
WFRD
$6.65B
| $6.24M | 0.01% |
65,953
-174,300
| -73% | -$16.4M |
|
1235
Monte Rosa Therapeutics
GLUE
$1.36B
| $6.24M | 0.01% |
+379,100
| New | +$7.25M |
|
|
PPIH
1236
Perma-Pipe International
PPIH
$216M
| $6.23M | 0.01% |
209,093
+58,800
| +39% | +$1.81M |
|
1237
Companhia Siderúrgica Nacional
SID
$1.15B
| $6.22M | 0.01% |
5,019,200
+1,481,300
| +42% | +$2.42M |
|
1238
Innovative Solutions & Support
ISSC
$360M
| $6.22M | 0.01% |
302,893
+33,800
| +13% | +$784K |
|
1239
York Water
YORW
$528M
| $6.21M | 0.01% |
204,036
+91,200
| +81% | +$2.95M |
|
1240
State Street SPDR Portfolio Intermediate Term Treasury ETF
SPTI
$10.6B
| $6.21M | 0.01% |
216,700
+170,300
| +367% | +$4.91M |
|
1241
Nelnet
NNI
$4.52B
| $6.19M | 0.01% |
48,000
+17,800
| +59% | +$2.34M |
|
1242
Select Water Solutions
WTTR
$2.73B
| $6.17M | 0.01% |
403,461
-66,600
| -14% | -$871K |
|
1243
Trex
TREX
$5.05B
| $6.17M | 0.01% |
169,300
-108,200
| -39% | -$4.35M |
|
1244
Garrett Motion
GTX
$5.47B
| $6.16M | 0.01% |
338,900
-673,500
| -67% | -$12.6M |
|
1245
Ondas Inc
ONDS
$5.57B
| $6.15M | 0.01% |
680,839
-4,037,461
| -86% | -$43.9M |
|
1246
inTEST
INTT
$179M
| $6.15M | 0.01% |
450,209
-47,828
| -10% | -$524K |
|
1247
Waste Management
WM
$90.5B
| $6.14M | 0.01% |
+26,700
| New | +$6.13M |
|
1248
Sierra Bancorp
BSRR
$528M
| $6.13M | 0.01% |
180,847
-1,065
| -0.6% | -$37.2K |
|
1249
First Hawaiian
FHB
$3.36B
| $6.13M | 0.01% |
248,900
-145,600
| -37% | -$3.75M |
|
1250
Cushman & Wakefield Ltd
CWK
$3.24B
| $6.1M | 0.01% |
+497,600
| New | +$7.14M |
|
Similar funds
Jim Simons's Q1 2026 Portfolio in Review
As of Q1 2026, Jim Simons held 3,809 positions worth $63.9B, down 0.82% from $64.5B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons's Q1 2026 filing shows 624 new, 1,320 increased, 1,262 reduced and 596 closed positions. Its largest new stake was Apple: 3,075,638 shares worth $781M. The largest sale was Costco, an estimated $656M.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 21% a quarter earlier, followed by Healthcare and Industrials.
- Jim Simons's largest Q1 2026 buy was Apple: 3,075,638 shares worth $781M.
- Jim Simons added most to NVIDIA in Q1 2026, an estimated $304M increase.
- Jim Simons's biggest Q1 2026 reduction was Costco, cutting an estimated $656M.
- Jim Simons fully exited Procter & Gamble in Q1 2026, selling an estimated $428M.
- Jim Simons's ten largest holdings make up 11% of its $63.9B portfolio in Q1 2026.
- Jim Simons opened 624 new positions and closed 596 in Q1 2026.
- Jim Simons's portfolio value fell 0.82% quarter-over-quarter to $63.9B.
Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.