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 | |
|---|---|---|---|---|---|---|
1426
Gaotu Techedu
GOTU
$398M
| $4.57M | 0.01% |
2,330,640
+50,362
| +2% | +$110K |
|
1427
German American Bancorp
GABC
$1.92B
| $4.57M | 0.01% |
109,249
+14,500
| +15% | +$600K |
|
1428
Bank First Corp
BFC
$1.75B
| $4.57M | 0.01% |
33,800
-18,655
| -36% | -$2.54M |
|
1429
Elevance Health
ELV
$86.6B
| $4.56M | 0.01% |
+15,573
| New | +$5.12M |
|
1430
Erie Indemnity
ERIE
$13.3B
| $4.56M | 0.01% |
18,131
-22,320
| -55% | -$5.99M |
|
1431
California Water Service
CWT
$3.11B
| $4.55M | 0.01% |
100,400
-11,500
| -10% | -$516K |
|
|
BCYC
1432
Bicycle Therapeutics
BCYC
$282M
| $4.54M | 0.01% |
979,300
+412,700
| +73% | +$2.36M |
|
1433
Sasol
SSL
$7.19B
| $4.54M | 0.01% |
350,500
-233,400
| -40% | -$2.04M |
|
1434
State Street SPDR Portfolio S&P 400 Mid Cap ETF
SPMD
$19B
| $4.54M | 0.01% |
+76,700
| New | +$4.67M |
|
1435
Zentalis Pharmaceuticals
ZNTL
$304M
| $4.54M | 0.01% |
1,938,145
-945,600
| -33% | -$2.44M |
|
1436
Heritage Insurance Holdings
HRTG
$971M
| $4.53M | 0.01% |
172,530
-9,151
| -5% | -$241K |
|
1437
Manchester United
MANU
$4.01B
| $4.51M | 0.01% |
268,400
+51,500
| +24% | +$877K |
|
1438
Arcos Dorados Holdings
ARCO
$1.73B
| $4.5M | 0.01% |
545,587
-504,147
| -48% | -$4.09M |
|
1439
Real Brokerage
REAX
$501M
| $4.49M | 0.01% |
1,797,000
-331,900
| -16% | -$1M |
|
|
BLFY
1440
DELISTED
Blue Foundry Bancorp
BLFY
| $4.48M | 0.01% |
338,400
+124,200
| +58% | +$1.64M |
|
1441
Bioventus
BVS
$1.16B
| $4.47M | 0.01% |
489,460
-125,640
| -20% | -$1.05M |
|
|
CVGW
1442
DELISTED
Calavo Growers
CVGW
| $4.46M | 0.01% |
173,078
-25,300
| -13% | -$634K |
|
|
EFXT
1443
Enerflex
EFXT
$2.64B
| $4.44M | 0.01% |
212,200
+9,100
| +4% | +$174K |
|
|
ESPR
1444
DELISTED
Esperion Therapeutics
ESPR
| $4.44M | 0.01% |
1,620,100
-574,500
| -26% | -$1.82M |
|
1445
SiTime
SITM
$21.2B
| $4.43M | 0.01% |
12,840
+3,200
| +33% | +$1.18M |
|
1446
Radian Group
RDN
$4.89B
| $4.42M | 0.01% |
133,700
+86,100
| +181% | +$2.89M |
|
1447
SES AI
SES
$211M
| $4.42M | 0.01% |
4,596,252
+1,671,610
| +57% | +$2.84M |
|
1448
Hippo Holdings
HIPO
$867M
| $4.42M | 0.01% |
169,620
-37,000
| -18% | -$1.05M |
|
1449
VanEck Oil Services ETF
OIH
$1.95B
| $4.41M | 0.01% |
+10,910
| New | +$3.99M |
|
1450
Dorman Products
DORM
$3.93B
| $4.4M | 0.01% |
42,200
-49,700
| -54% | -$5.92M |
|
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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.