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 |
Meta Platforms (Facebook)
META
|
+$1.08B |
| 2 |
NVIDIA
NVDA
|
+$938M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$639M |
| 4 |
Netflix
NFLX
|
+$598M |
| 5 |
Amazon
AMZN
|
+$575M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$1.46B |
| 2 |
Sandisk
SNDK
|
+$1.13B |
| 3 |
Apple
AAPL
|
+$426M |
| 4 |
Linde
LIN
|
+$316M |
| 5 |
Vertiv
VRT
|
+$297M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 23.58% |
| 2 | Healthcare | 14.83% |
| 3 | Consumer Discretionary | 11.24% |
| 4 | Industrials | 10.49% |
| 5 | Communication Services | 8.91% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
3751
Ambitions Enterprise Management Co
AHMA
$34.5M
| – | – |
-20,143
| Closed | -$22.8K | – |
|
3752
Elauwit Connection Inc
ELWT
$36.7M
| – | – |
-11,200
| Closed | -$66.4K | – |
|
3753
Phaos Technology Holdings (Cayman) Ltd
POAS
$2.91M
| – | – |
-940
| Closed | -$22.7K | – |
|
3754
Cardinal Infrastructure Group
CDNL
$313M
| – | – |
-68,200
| Closed | -$2.7M | – |
|
3755
Lumexa Imaging Holdings
LMRI
$1.04B
| – | – |
-90,423
| Closed | -$778K | – |
|
3756
Wealthfront Corp
WLTH
$1.66B
| – | – |
-175,370
| Closed | -$1.62M | – |
|
3757
Medline Inc
MDLN
$31.5B
| – | – |
-143,700
| Closed | -$6.39M | – |
|
3758
Green Circle Decarbonize Technology Limited
GCDT
$610K
| – | – |
-2,398
| Closed | -$14.5K | – |
|
3759
Tradr 2X Short IREN Daily ETF
IREZ
$15.2M
| – | – |
-2,400
| Closed | -$217K | – |
|
3760
York Space Systems
YSS
$766M
| – | – |
-67,171
| Closed | -$1.49M | – |
|
3761
DELISTED
M-tron Industries Rights (expiring April 15 2026)
MPTI.RT
| – | – |
-97,471
| Closed | -$205K | – |
|
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Jim Simons's Q2 2026 Portfolio in Review
As of Q2 2026, Jim Simons held 3,761 positions worth $72.6B, up 14% from $63.9B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons's Q2 2026 filing shows 548 new, 1,084 increased, 1,502 reduced and 621 closed positions. Its largest new stake was Amazon: 2,290,710 shares worth $546M. The largest sale was Micron Technology, an estimated $1.46B.
By sector, the portfolio is most concentrated in Technology at 24% of assets, up from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Jim Simons's largest Q2 2026 buy was Amazon: 2,290,710 shares worth $546M.
- Jim Simons added most to Meta Platforms (Facebook) in Q2 2026, an estimated $1.08B increase.
- Jim Simons's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $1.46B.
- Jim Simons fully exited Applovin in Q2 2026, selling an estimated $174M.
- Jim Simons's ten largest holdings make up 12% of its $72.6B portfolio in Q2 2026.
- Jim Simons opened 548 new positions and closed 621 in Q2 2026.
- Jim Simons's portfolio value rose 14% quarter-over-quarter to $72.6B.
Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.