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 | |
|---|---|---|---|---|---|---|
626
W.W. Grainger
GWW
$61.5B
| $21M | 0.03% |
19,240
-55,040
| -74% | -$60.1M |
|
627
Antero Resources
AR
$11.5B
| $21M | 0.03% |
+493,800
| New | +$18M |
|
628
Yelp
YELP
$1.28B
| $20.9M | 0.03% |
844,234
-400
| -0% | -$10.1K |
|
629
AvalonBay Communities
AVB
$25.7B
| $20.9M | 0.03% |
+127,814
| New | +$22.3M |
|
630
Blue Bird Corp
BLBD
$2.04B
| $20.9M | 0.03% |
367,540
-47,900
| -12% | -$2.58M |
|
631
EXL Service
EXLS
$5.2B
| $20.8M | 0.03% |
684,300
+364,900
| +114% | +$12.6M |
|
632
Transocean
RIG
$6.37B
| $20.8M | 0.03% |
3,134,728
-5,900,600
| -65% | -$33.2M |
|
633
CSX Corp
CSX
$92.8B
| $20.7M | 0.03% |
+503,600
| New | +$19.7M |
|
634
UFP Technologies
UFPT
$2.5B
| $20.6M | 0.03% |
106,472
-34,487
| -24% | -$7.98M |
|
635
Ultrapar
UGP
$6.22B
| $20.6M | 0.03% |
3,740,700
+357,922
| +11% | +$1.73M |
|
636
Archrock
AROC
$5.84B
| $20.6M | 0.03% |
591,534
+203,706
| +53% | +$6.5M |
|
637
CareDx
CDNA
$2.45B
| $20.6M | 0.03% |
1,184,398
+79,200
| +7% | +$1.5M |
|
638
Golar LNG
GLNG
$5.2B
| $20.4M | 0.03% |
+377,692
| New | +$16.7M |
|
639
National Presto Industries
NPK
$998M
| $20.3M | 0.03% |
148,300
-14,500
| -9% | -$1.86M |
|
640
Leidos
LDOS
$17.6B
| $20.2M | 0.03% |
+130,050
| New | +$23.3M |
|
641
Valmont Industries
VMI
$9.52B
| $20.1M | 0.03% |
50,360
+24,400
| +94% | +$10.7M |
|
642
First Solar
FSLR
$24.4B
| $20M | 0.03% |
+101,500
| New | +$22.4M |
|
643
iShares Russell 1000 Value ETF
IWD
$84B
| $20M | 0.03% |
93,700
+90,600
| +2,923% | +$19.8M |
|
644
Univest Financial
UVSP
$1.18B
| $20M | 0.03% |
583,734
-51,496
| -8% | -$1.74M |
|
645
InterDigital
IDCC
$9.07B
| $20M | 0.03% |
66,098
+33,800
| +105% | +$11.5M |
|
646
Pembina Pipeline
PBA
$28.4B
| $20M | 0.03% |
445,764
+418,200
| +1,517% | +$17.7M |
|
|
HTB
647
HomeTrust Bancshares
HTB
$831M
| $19.9M | 0.03% |
466,215
-39,022
| -8% | -$1.68M |
|
648
Towne Bank
TOWN
$3.49B
| $19.9M | 0.03% |
590,319
-88,820
| -13% | -$3.08M |
|
649
Kearny Financial
KRNY
$600M
| $19.9M | 0.03% |
2,632,416
-88,300
| -3% | -$680K |
|
650
Waterstone Financial
WSBF
$378M
| $19.7M | 0.03% |
1,094,471
-22,765
| -2% | -$405K |
|
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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.