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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
+887.93%
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 | |
|---|---|---|---|---|---|---|---|
576
Spire
SR
$4.8B
| $26.8M | 0.04% |
343,000
+302,900
| +755% | +$26M |
2026 Q1
1 quarter
|
|
577
Jackson Financial
JXN
$8.71B
| $26.7M | 0.04% |
260,300
+157,800
| +154% | +$17.1M |
2026 Q1
1 quarter
|
|
578
Skywest
SKYW
$3.51B
| $26.3M | 0.04% |
265,156
-51,400
| -16% | -$4.57M |
2014 Q4
46 quarters
|
|
579
Aurinia Pharmaceuticals
AUPH
$2.19B
| $26.3M | 0.04% |
1,548,035
-115,800
| -7% | -$1.85M |
2021 Q4
18 quarters
|
|
580
Ennis
EBF
$565M
| $26.2M | 0.04% |
1,231,546
-76,100
| -6% | -$1.58M |
2015 Q1
45 quarters
|
|
581
Stifel
SF
$10B
| $26.2M | 0.04% |
374,823
+274,000
| +272% | +$20.4M |
2026 Q1
1 quarter
|
|
582
Vanguard S&P 500 ETF
VOO
$1.04T
| $26M | 0.04% |
+37,820
| New | +$25.2M |
2026 Q2
0 quarters
|
|
583
Cavco Industries
CVCO
$3.93B
| $25.9M | 0.04% |
42,169
+4,240
| +11% | +$2.25M |
2013 Q3
51 quarters
|
|
584
CRA International
CRAI
$1.12B
| $25.9M | 0.04% |
181,775
-42,700
| -19% | -$6.42M |
2014 Q1
49 quarters
|
|
585
BioMarin Pharmaceuticals
BMRN
$10.6B
| $25.9M | 0.04% |
451,871
-573,000
| -56% | -$31.4M |
2021 Q1
21 quarters
|
|
586
SLM Corp
SLM
$4.06B
| $25.8M | 0.04% |
996,200
-204,700
| -17% | -$4.61M |
2024 Q4
6 quarters
|
|
587
Digital Turbine
APPS
$1.16B
| $25.8M | 0.04% |
2,003,000
+1,720,200
| +608% | +$10.3M |
2025 Q4
2 quarters
|
|
588
Sturm, Ruger & Co
RGR
$733M
| $25.8M | 0.04% |
682,376
-27,800
| -4% | -$1.12M |
2015 Q3
43 quarters
|
|
589
Atlanta Braves Holdings Series B
BATRK
$3.16B
| $25.8M | 0.04% |
496,829
+191,788
| +63% | +$9.41M |
2017 Q1
37 quarters
|
|
590
Graham Corp
GHM
$813M
| $25.7M | 0.04% |
207,768
-39,600
| -16% | -$3.93M |
2013 Q2
52 quarters
|
|
591
Atlassian
TEAM
$54.4B
| $25.7M | 0.04% |
330,083
-165,141
| -33% | -$13.5M |
2016 Q2
40 quarters
|
|
592
Mercantile Bank Corp
MBWM
$1.01B
| $25.6M | 0.04% |
446,613
-25,600
| -5% | -$1.35M |
2013 Q2
52 quarters
|
|
593
Liberty Global Class C
LBTYK
$2.54B
| $25.5M | 0.04% |
2,315,315
+227,715
| +11% | +$2.64M |
2019 Q4
26 quarters
|
|
594
Riot Platforms
RIOT
$5.24B
| $25.4M | 0.03% |
+926,749
| New | +$20.9M |
2026 Q2
0 quarters
|
|
595
BioCryst Pharmaceuticals
BCRX
$2.06B
| $25.3M | 0.03% |
2,530,290
+1,753,300
| +226% | +$15.9M |
2023 Q3
11 quarters
|
|
596
Rush Enterprises Class B
RUSHB
$6.63B
| $25.3M | 0.03% |
495,371
-28,950
| -6% | -$1.35M |
2013 Q2
52 quarters
|
|
597
Workday
WDAY
$47B
| $25.3M | 0.03% |
206,300
-375,600
| -65% | -$47.6M |
2026 Q1
1 quarter
|
|
598
Callaway Golf Company
CALY
$2.45B
| $25.2M | 0.03% |
1,338,900
+413,466
| +45% | +$6.48M |
2025 Q3
3 quarters
|
|
599
Levi Strauss
LEVI
$7.91B
| $25.1M | 0.03% |
+1,011,000
| New | +$22.8M |
2026 Q2
0 quarters
|
|
600
Penumbra
PEN
$12.7B
| $25.1M | 0.03% |
79,500
+77,340
| +3,581% | +$25.1M |
2026 Q1
1 quarter
|
|
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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.