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 | |
|---|---|---|---|---|---|---|
1501
Viridian Therapeutics
VRDN
$2.5B
| $3.97M | 0.01% |
+203,100
| New | +$6.03M |
|
1502
Lightpath Technologies
LPTH
$953M
| $3.97M | 0.01% |
395,922
+141,473
| +56% | +$1.62M |
|
1503
IonQ
IONQ
$18.7B
| $3.97M | 0.01% |
+137,598
| New | +$5.28M |
|
1504
Cohen & Steers
CNS
$4.36B
| $3.95M | 0.01% |
63,212
-18,300
| -22% | -$1.19M |
|
1505
BioLife Solutions
BLFS
$1.72B
| $3.95M | 0.01% |
207,128
-17,572
| -8% | -$388K |
|
1506
Ecovyst
ECVT
$1.14B
| $3.94M | 0.01% |
306,700
+76,600
| +33% | +$865K |
|
1507
Grupo Aval
AVAL
$6.29B
| $3.94M | 0.01% |
895,772
+50,912
| +6% | +$221K |
|
|
CTO
1508
CTO Realty Growth
CTO
$825M
| $3.93M | 0.01% |
212,300
+1,799
| +0.9% | +$33.6K |
|
1509
Red Violet
RDVT
$1.12B
| $3.93M | 0.01% |
113,450
+96,810
| +582% | +$4.26M |
|
1510
Allegro MicroSystems
ALGM
$8.27B
| $3.91M | 0.01% |
123,900
-312,300
| -72% | -$10.8M |
|
|
NP
1511
Neptune Insurance Holdings
NP
$4.35B
| $3.89M | 0.01% |
160,703
+144,210
| +874% | +$3.34M |
|
1512
Park Hotels & Resorts
PK
$3.05B
| $3.89M | 0.01% |
369,152
-397,700
| -52% | -$4.39M |
|
1513
Shattuck Labs
STTK
$745M
| $3.89M | 0.01% |
604,500
+263,800
| +77% | +$1.25M |
|
1514
Gogo Inc
GOGO
$383M
| $3.89M | 0.01% |
966,674
+230,800
| +31% | +$1.05M |
|
1515
Dime Commercial Bancshares
DCOM
$1.81B
| $3.88M | 0.01% |
114,716
-9,700
| -8% | -$319K |
|
1516
Boyd Gaming
BYD
$6.11B
| $3.88M | 0.01% |
47,200
+8,800
| +23% | +$739K |
|
1517
Columbia Banking Systems
COLB
$9.25B
| $3.88M | 0.01% |
+141,398
| New | +$4.09M |
|
1518
Playtika
PLTK
$957M
| $3.86M | 0.01% |
1,387,394
-149,731
| -10% | -$491K |
|
1519
Sensient Technologies
SXT
$5.68B
| $3.81M | 0.01% |
44,100
-53,100
| -55% | -$4.97M |
|
1520
KRONOS Worldwide
KRO
$975M
| $3.81M | 0.01% |
579,432
-88,965
| -13% | -$505K |
|
1521
First United
FUNC
$293M
| $3.8M | 0.01% |
103,595
-4,800
| -4% | -$178K |
|
1522
Sun Communities
SUI
$15B
| $3.79M | 0.01% |
+30,100
| New | +$3.89M |
|
1523
First Commonwealth Financial
FCF
$2.18B
| $3.79M | 0.01% |
215,591
+176,626
| +453% | +$3.11M |
|
1524
Piper Sandler
PIPR
$5.41B
| $3.77M | 0.01% |
+49,200
| New | +$4.04M |
|
|
GRDN
1525
Guardian Pharmacy Services
GRDN
$2.43B
| $3.77M | 0.01% |
99,989
-21,611
| -18% | -$706K |
|
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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.