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 | |
|---|---|---|---|---|---|---|
376
Regency Centers
REG
$13.9B
| $41.6M | 0.07% |
549,695
+97,900
| +22% | +$7.3M |
|
377
WD-40
WDFC
$3.13B
| $41.5M | 0.06% |
203,476
-48,792
| -19% | -$10.9M |
|
378
HubSpot
HUBS
$10.5B
| $41.4M | 0.06% |
+169,740
| New | +$47.6M |
|
379
Itron
ITRI
$4.46B
| $41.4M | 0.06% |
461,761
+42,300
| +10% | +$4.06M |
|
380
A10 Networks
ATEN
$1.99B
| $41.3M | 0.06% |
1,784,987
-349,747
| -16% | -$6.84M |
|
381
Pacira BioSciences
PCRX
$967M
| $41.3M | 0.06% |
1,825,501
-58,500
| -3% | -$1.3M |
|
382
Millicom
TIGO
$16.3B
| $41.2M | 0.06% |
549,792
+87,400
| +19% | +$5.73M |
|
383
Snap-on
SNA
$21.1B
| $41.1M | 0.06% |
113,020
+78,560
| +228% | +$29.1M |
|
384
Itaú Unibanco
ITUB
$82.2B
| $41M | 0.06% |
4,894,713
-3,711,668
| -43% | -$31.1M |
|
385
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.7B
| $41M | 0.06% |
500,000
+388,800
| +350% | +$32.7M |
|
386
Teekay Tankers
TNK
$2.77B
| $40.9M | 0.06% |
558,000
+900
| +0.2% | +$60.3K |
|
387
Sociedad Química y Minera de Chile
SQM
$20.5B
| $40.7M | 0.06% |
502,484
+430,900
| +602% | +$32.8M |
|
388
Flutter Entertainment
FLUT
$16.9B
| $40.6M | 0.06% |
+397,860
| New | +$57.3M |
|
389
Core & Main
CNM
$8.59B
| $40.2M | 0.06% |
+814,100
| New | +$43.8M |
|
|
IMOS
390
ChipMOS TECHNOLOGIES
IMOS
$1.98B
| $40M | 0.06% |
1,117,990
-7,200
| -0.6% | -$272K |
|
391
Southwest Gas
SWX
$6.67B
| $39.9M | 0.06% |
459,000
+338,600
| +281% | +$28.9M |
|
392
Griffon
GFF
$4.73B
| $39.8M | 0.06% |
547,351
+87,100
| +19% | +$7.06M |
|
393
Alcoa
AA
$13.9B
| $39.7M | 0.06% |
+598,696
| New | +$36.7M |
|
394
Natera
NTRA
$45.5B
| $39.5M | 0.06% |
197,500
+6,900
| +4% | +$1.48M |
|
395
Gerdau
GGB
$9.4B
| $39.5M | 0.06% |
10,936,524
+4,725,200
| +76% | +$18.6M |
|
396
Cellebrite
CLBT
$3.86B
| $39.4M | 0.06% |
2,860,639
+365,700
| +15% | +$5.51M |
|
397
IES Holdings
IESC
$15.6B
| $39.2M | 0.06% |
82,352
-15,040
| -15% | -$6.9M |
|
398
Watts Water Technologies
WTS
$12.9B
| $39.2M | 0.06% |
135,140
+49,960
| +59% | +$15.2M |
|
399
Hilton Worldwide
HLT
$72.7B
| $39.1M | 0.06% |
128,550
-194,510
| -60% | -$59M |
|
400
Ferrari
RACE
$71.5B
| $39M | 0.06% |
116,968
+37,860
| +48% | +$13.2M |
|
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.