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 | |
|---|---|---|---|---|---|---|---|
3601
Teradata
TDC
$2.82B
| – | – |
-234,200
| Closed | -$6M | – |
|
3602
Teledyne Technologies
TDY
$28.7B
| – | – |
-5,787
| Closed | -$3.5M | – |
|
3603
Teck Resources
TECK
$31.7B
| – | – |
-197,876
| Closed | -$10.2M | – |
|
3604
DELISTED
Terns Pharmaceuticals
TERN
| – | – |
-169,034
| Closed | -$8.91M | – |
|
3605
Terex
TEX
$5.83B
| – | – |
-118,891
| Closed | -$7.03M | – |
|
3606
Thryv Holdings
THRY
$53.8M
| – | – |
-115,113
| Closed | -$315K | – |
|
3607
Titan Machinery
TITN
$522M
| – | – |
-101,797
| Closed | -$1.7M | – |
|
3608
TriSalus Life Sciences
TLSI
$224M
| – | – |
-30,900
| Closed | -$124K | – |
|
3609
Thermo Fisher Scientific
TMO
$255B
| – | – |
-138,964
| Closed | -$68.3M | – |
|
3610
Direxion Daily 20+ Year Treasury Bear 3X ETF
TMV
$226M
| – | – |
-53,100
| Closed | -$1.98M | – |
|
3611
Tandem Diabetes Care
TNDM
$1.13B
| – | – |
-58,227
| Closed | -$1.12M | – |
|
3612
Toll Brothers
TOL
$12.3B
| – | – |
-173,000
| Closed | -$23.6M | – |
|
3613
DELISTED
Tri Pointe Homes
TPH
| – | – |
-200,236
| Closed | -$9.36M | – |
|
3614
Trex
TREX
$4.66B
| – | – |
-169,300
| Closed | -$6.17M | – |
|
3615
Thomson Reuters
TRI
$47.2B
| – | – |
-166,090
| Closed | -$15.2M | – |
|
|
TRIB
3616
Trinity Biotech
TRIB
$6.53M
| – | – |
-592
| Closed | -$9.6K | – |
|
3617
TriMas Corp
TRS
$1.39B
| – | – |
-110,700
| Closed | -$3.98M | – |
|
3618
Tractor Supply
TSCO
$17.3B
| – | – |
-197,700
| Closed | -$8.96M | – |
|
3619
Taysha Gene Therapies
TSHA
$1.18B
| – | – |
-413,203
| Closed | -$1.85M | – |
|
3620
Direxion Daily TSLA Bull 2X ETF
TSLL
$3.48B
| – | – |
-2,198,300
| Closed | -$26.7M | – |
|
3621
T-REX 2X Long Tesla Daily Target ETF
TSLT
$141M
| – | – |
-27,800
| Closed | -$473K | – |
|
3622
Tetra Tech
TTEK
$8.89B
| – | – |
-453,600
| Closed | -$13.7M | – |
|
3623
Tuya Inc
TUYA
$1.01B
| – | – |
-15,800
| Closed | -$36.5K | – |
|
3624
Twilio
TWLO
$37.5B
| – | – |
-52,000
| Closed | -$6.54M | – |
|
3625
Uber
UBER
$144B
| – | – |
-1,796,200
| Closed | -$129M | – |
|
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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.