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 | |
|---|---|---|---|---|---|---|
|
PRA
576
DELISTED
ProAssurance
PRA
| $23.9M | 0.04% |
964,900
+834,700
| +641% | +$20.4M |
|
577
Mercantile Bank Corp
MBWM
$1.06B
| $23.8M | 0.04% |
472,213
-24,000
| -5% | -$1.23M |
|
578
MKS Inc
MKSI
$20.7B
| $23.8M | 0.04% |
+103,603
| New | +$23.4M |
|
579
KKR & Co
KKR
$99.5B
| $23.8M | 0.04% |
+257,350
| New | +$27.1M |
|
580
Robert Half
RHI
$4.25B
| $23.8M | 0.04% |
936,172
-132,100
| -12% | -$3.49M |
|
581
Universal Technical Institute
UTI
$1.41B
| $23.7M | 0.04% |
657,030
-67,600
| -9% | -$2.13M |
|
582
Analog Devices
ADI
$187B
| $23.7M | 0.04% |
74,395
-275,200
| -79% | -$87.6M |
|
583
FIGS
FIGS
$2.4B
| $23.6M | 0.04% |
1,601,200
-164,000
| -9% | -$2.1M |
|
584
Toll Brothers
TOL
$13.9B
| $23.6M | 0.04% |
173,000
+109,600
| +173% | +$16.1M |
|
585
Mobileye
MBLY
$7.48B
| $23.5M | 0.04% |
3,427,946
-689,724
| -17% | -$6.25M |
|
586
Stellantis
STLA
$20.2B
| $23.5M | 0.04% |
3,365,143
+1,824,139
| +118% | +$15.3M |
|
587
Park Aerospace
PKE
$828M
| $23.5M | 0.04% |
859,097
+19,057
| +2% | +$488K |
|
588
Telefônica Brasil
VIV
$18.5B
| $23.4M | 0.04% |
1,469,900
-23,200
| -2% | -$343K |
|
589
Saia
SAIA
$9.73B
| $23.3M | 0.04% |
66,378
+43,840
| +195% | +$16M |
|
|
WCN
590
Waste Connections
WCN
$41.6B
| $23.3M | 0.04% |
143,461
+43,800
| +44% | +$7.3M |
|
591
International Paper
IP
$21.8B
| $23.3M | 0.04% |
+652,500
| New | +$27.1M |
|
592
Global Ship Lease
GSL
$1.49B
| $23M | 0.04% |
618,750
-74,600
| -11% | -$2.81M |
|
593
Ralph Lauren
RL
$23.6B
| $23M | 0.04% |
66,722
-24,428
| -27% | -$8.68M |
|
594
Ionis Pharmaceuticals
IONS
$9.39B
| $22.9M | 0.04% |
305,549
+81,942
| +37% | +$6.47M |
|
595
TransDigm Group
TDG
$68.3B
| $22.9M | 0.04% |
+19,780
| New | +$25.9M |
|
596
Sonos
SONO
$1.86B
| $22.9M | 0.04% |
1,706,501
+1,230,900
| +259% | +$18.6M |
|
597
Pultegroup
PHM
$24.6B
| $22.8M | 0.04% |
194,067
+163,100
| +527% | +$20.9M |
|
598
LegalZoom.com
LZ
$930M
| $22.8M | 0.04% |
4,013,693
-1,037,930
| -21% | -$7.88M |
|
599
Comcast
CMCSA
$90.4B
| $22.6M | 0.04% |
788,376
-5,772,200
| -88% | -$173M |
|
600
Erasca
ERAS
$6.45B
| $22.6M | 0.04% |
1,398,869
+548,769
| +65% | +$6.49M |
|
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.