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 | |
|---|---|---|---|---|---|---|
451
Enphase Energy
ENPH
$5.41B
| $33.6M | 0.05% |
888,628
-8,466
| -0.9% | -$352K |
|
452
Denison Mines
DNN
$3B
| $33.4M | 0.05% |
9,455,713
+6,934,400
| +275% | +$26.1M |
|
453
Joby Aviation
JOBY
$8.04B
| $33.1M | 0.05% |
4,005,200
+2,645,200
| +195% | +$29.8M |
|
454
Gentex
GNTX
$4.94B
| $33M | 0.05% |
1,509,752
-217,800
| -13% | -$5.05M |
|
455
Pediatrix Medical
MD
$2.13B
| $32.8M | 0.05% |
1,532,300
+174,600
| +13% | +$3.63M |
|
456
RELX
RELX
$60.2B
| $32.8M | 0.05% |
988,330
-628,400
| -39% | -$22.1M |
|
457
Lennar Class A
LEN
$20.7B
| $32.8M | 0.05% |
377,239
-127,400
| -25% | -$13.8M |
|
458
Cirrus Logic
CRUS
$6.14B
| $32.8M | 0.05% |
226,520
+74,477
| +49% | +$10M |
|
|
LGN
459
Legence Corp
LGN
$5.29B
| $32.7M | 0.05% |
579,700
+270,615
| +88% | +$13.6M |
|
460
Frontline
FRO
$8.72B
| $32.3M | 0.05% |
927,838
+530,500
| +134% | +$16.2M |
|
461
Zscaler
ZS
$28.4B
| $32.3M | 0.05% |
230,460
+122,160
| +113% | +$21.7M |
|
462
State Street Utilities Select Sector SPDR ETF
XLU
$22.7B
| $32.3M | 0.05% |
703,900
+530,100
| +305% | +$23.8M |
|
463
Silicon Laboratories
SLAB
$7.23B
| $32.3M | 0.05% |
155,098
+85,100
| +122% | +$15.6M |
|
464
FirstCash
FCFS
$9.17B
| $32.3M | 0.05% |
171,641
-22,890
| -12% | -$4.14M |
|
|
VG
465
Venture Global Inc
VG
$34.5B
| $32.3M | 0.05% |
2,046,840
+1,046,300
| +105% | +$11.2M |
|
466
Par Pacific Holdings
PARR
$3.79B
| $32.2M | 0.05% |
513,779
-495,185
| -49% | -$22.2M |
|
467
CF Industries
CF
$17.8B
| $32.1M | 0.05% |
247,589
+96,700
| +64% | +$9.86M |
|
468
AGCO
AGCO
$7.11B
| $32.1M | 0.05% |
276,700
-96,800
| -26% | -$11.7M |
|
469
Weyerhaeuser
WY
$17.8B
| $32M | 0.05% |
1,310,981
-248,400
| -16% | -$6.25M |
|
470
Essex Property Trust
ESS
$18.1B
| $31.9M | 0.05% |
+131,966
| New | +$33.3M |
|
471
Klaviyo
KVYO
$4.93B
| $31.9M | 0.05% |
1,640,844
-122,900
| -7% | -$2.64M |
|
472
Phibro Animal Health
PAHC
$1.35B
| $31.9M | 0.05% |
576,735
+31,435
| +6% | +$1.5M |
|
473
Core Scientific
CORZ
$6.76B
| $31.9M | 0.05% |
2,132,263
+401,800
| +23% | +$6.85M |
|
474
Ameren
AEE
$29.9B
| $31.7M | 0.05% |
288,200
+47,400
| +20% | +$5.07M |
|
475
GeoPark
GPRK
$604M
| $31.4M | 0.05% |
3,309,031
+578,178
| +21% | +$4.87M |
|
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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.