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Jim Simons Renaissance Technologies
AUM
$72.6B
Turnover
31.08%
1-Year Est. Return
54.88%
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.
This Fund
S&P 500
This Quarter Est. Return
+24.48%
1 Year Est. Return
+54.88%
3 Year Est. Return
+169.34%
5 Year Est. Return
+186.18%
10 Year Est. Return
+887.92%
AUM
$72.6B
AUM Growth
+$8.69B
(+14%)
Cap. Flow
+$958M
Cap. Flow % of AUM
Cap. Flow %
1.32%
Top 10 Holdings %
Top 10 Hldgs %
12.01%
Holding
3,761
New
548
Increased
1,084
Reduced
1,502
Closed
621
Avg Time Held
3.5
years
Top 10 Avg Time Held
1.5
years
Top 20 Avg Time Held
1.3
years
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 | |
|---|---|---|---|---|---|---|---|
2501
Five Star Bancorp
FSBC
$1.06B
| $648K | ﹤0.01% |
13,300
-16,000
| -55% | -$675K |
2023 Q1
13 quarters
|
|
2502
Biodesix
BDSX
$252M
| $646K | ﹤0.01% |
28,648
+16,700
| +140% | +$248K |
2026 Q1
1 quarter
|
|
2503
Genesco
GCO
$392M
| $645K | ﹤0.01% |
19,100
+6,700
| +54% | +$235K |
2026 Q1
1 quarter
|
|
2504
Heron Therapeutics
HRTX
$64.3M
| $643K | ﹤0.01% |
1,506,900
-211,400
| -12% | -$170K |
2022 Q4
14 quarters
|
|
2505
Reading International Class A
RDI
$41.2M
| $643K | ﹤0.01% |
502,390
-9,600
| -2% | -$11.1K |
2013 Q2
52 quarters
|
|
2506
Neurogene
NGNE
$522M
| $642K | ﹤0.01% |
20,405
-22,995
| -53% | -$633K |
2025 Q4
2 quarters
|
|
2507
Largo
LGO
$48.6M
| $639K | ﹤0.01% |
1,007,000
-286,300
| -22% | -$295K |
2023 Q4
10 quarters
|
|
2508
US Global Investors
GROW
$31.7M
| $637K | ﹤0.01% |
204,015
+11,300
| +6% | +$30.7K |
2019 Q3
27 quarters
|
|
2509
iShares Core High Dividend ETF
HDV
$15.5B
| $630K | ﹤0.01% |
23,000
-9,000
| -28% | -$245K |
2025 Q3
3 quarters
|
|
2510
Network-1 Technologies
NTIP
$36.1M
| $630K | ﹤0.01% |
428,344
-33,100
| -7% | -$48.5K |
2016 Q2
40 quarters
|
|
2511
loanDepot
LDI
$179M
| $630K | ﹤0.01% |
503,600
-316,200
| -39% | -$426K |
2021 Q3
19 quarters
|
|
2512
Spruce Power Holding Corp
SPRU
$25.6M
| $628K | ﹤0.01% |
243,533
+7,300
| +3% | +$23.8K |
2021 Q4
18 quarters
|
|
2513
GRAIL Inc
GRAL
$5.92B
| $628K | ﹤0.01% |
9,200
-46,000
| -83% | -$2.71M |
2025 Q2
4 quarters
|
|
2514
AN2 Therapeutics
ANTX
$136M
| $628K | ﹤0.01% |
129,700
-69,100
| -35% | -$297K |
2024 Q2
8 quarters
|
|
2515
Kimball Electronics
KE
$635M
| $625K | ﹤0.01% |
+24,432
| New | +$627K |
2026 Q2
0 quarters
|
|
2516
Powerus Corporation Common Stock
PUSA
$273M
| $624K | ﹤0.01% |
+156,400
| New | +$656K |
2026 Q2
0 quarters
|
|
2517
iShares Asia 50 ETF
AIA
$4.58B
| $623K | ﹤0.01% |
+4,400
| New | +$578K |
2026 Q2
0 quarters
|
|
2518
First Bank
FRBA
$440M
| $623K | ﹤0.01% |
35,150
-19,438
| -36% | -$312K |
2016 Q4
38 quarters
|
|
|
MDV
2519
DELISTED
Modiv Industrial
MDV
| $623K | ﹤0.01% |
35,800
-39,900
| -53% | -$685K |
2023 Q4
10 quarters
|
|
2520
DELISTED
First Seacoast Bancorp
FSEA
| $623K | ﹤0.01% |
36,932
+15,300
| +71% | +$229K |
2024 Q3
7 quarters
|
|
2521
Tecnoglass Holdings
TGLS
$1.67B
| $623K | ﹤0.01% |
+13,300
| New | +$575K |
2026 Q2
0 quarters
|
|
2522
iShares Broad USD Investment Grade Corporate Bond ETF
USIG
$17.8B
| $621K | ﹤0.01% |
+12,100
| New | +$620K |
2026 Q2
0 quarters
|
|
2523
BrasilAgro
LND
$363M
| $619K | ﹤0.01% |
173,500
+34,000
| +24% | +$131K |
2021 Q4
18 quarters
|
|
2524
Adagene
ADAG
$162M
| $615K | ﹤0.01% |
146,500
+111,967
| +324% | +$421K |
2026 Q1
1 quarter
|
|
2525
Xilio Therapeutics
XLO
$55.5M
| $615K | ﹤0.01% |
64,153
+14,587
| +29% | +$122K |
2022 Q2
16 quarters
|
|
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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.