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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 | |
|---|---|---|---|---|---|---|---|
2776
Geospace Technologies
GEOS
$57M
| $300K | ﹤0.01% |
+44,299
| New | +$382K |
2026 Q2
0 quarters
|
|
2777
Invesco FTSE RAFI US 1000 ETF
PRF
$10.1B
| $297K | ﹤0.01% |
5,506
-24,294
| -82% | -$1.26M |
2023 Q2
12 quarters
|
|
2778
Xunlei
XNET
$255M
| $297K | ﹤0.01% |
53,077
-36,223
| -41% | -$209K |
2026 Q1
1 quarter
|
|
2779
Viomi Technology
VIOT
$90.3M
| $296K | ﹤0.01% |
378,964
-324,516
| -46% | -$313K |
2019 Q3
27 quarters
|
|
2780
Comscore
SCOR
$52.2M
| $295K | ﹤0.01% |
39,921
-1,000
| -2% | -$7.31K |
2019 Q2
28 quarters
|
|
2781
Aterian
ATER
$10.5M
| $294K | ﹤0.01% |
223,030
+174,383
| +358% | +$181K |
2025 Q2
4 quarters
|
|
2782
Tao Synergies Inc
TAOX
$27M
| $294K | ﹤0.01% |
78,817
-22,983
| -23% | -$108K |
2025 Q2
4 quarters
|
|
2783
Oportun Financial
OPRT
$421M
| $292K | ﹤0.01% |
51,179
-48,900
| -49% | -$262K |
2021 Q4
18 quarters
|
|
2784
DELISTED
Leslie's
LESL
| $291K | ﹤0.01% |
28,653
+10,300
| +56% | +$40.4K |
2026 Q1
1 quarter
|
|
2785
Lennar Class B
LEN.B
$18.5B
| $288K | ﹤0.01% |
+3,252
| New | +$284K |
2026 Q2
0 quarters
|
|
2786
ProShares UltraShort Dow 30
DXD
$46.4M
| $288K | ﹤0.01% |
+16,800
| New | +$320K |
2026 Q2
0 quarters
|
|
2787
T-Rex 2X Long MSTR Daily Target ETF
MSTU
$678M
| $287K | ﹤0.01% |
17,700
-20,060
| -53% | -$1.1M |
2026 Q1
1 quarter
|
|
2788
DELISTED
Waldencast
WALD
| $286K | ﹤0.01% |
+162,700
| New | +$218K |
2026 Q2
0 quarters
|
|
2789
Leverage Shares 2X Long GLW Daily ETF
GLWG
$62.3M
| $285K | ﹤0.01% |
+6,309
| New | +$166K |
2026 Q2
0 quarters
|
|
2790
Chicago Rivet & Machine Co
CVR
$9.7M
| $284K | ﹤0.01% |
27,310
-1,100
| -4% | -$11.5K |
2013 Q2
52 quarters
|
|
2791
Creative Realities
CREX
$29.1M
| $284K | ﹤0.01% |
68,803
+301
| +0.4% | +$1.14K |
2021 Q2
20 quarters
|
|
2792
abrdn Physical Platinum Shares ETF
PPLT
$1.96B
| $284K | ﹤0.01% |
+20,100
| New | +$349K |
2026 Q2
0 quarters
|
|
2793
Ovid Therapeutics
OVID
$461M
| $284K | ﹤0.01% |
105,500
-998,800
| -90% | -$2.58M |
2021 Q3
19 quarters
|
|
2794
GrafTech
EAF
$181M
| $281K | ﹤0.01% |
47,561
-73,783
| -61% | -$623K |
2026 Q1
1 quarter
|
|
2795
Smart Sand
SND
$223M
| $281K | ﹤0.01% |
56,100
+5,500
| +11% | +$27.6K |
2021 Q4
18 quarters
|
|
2796
TaskUs
TASK
$772M
| $279K | ﹤0.01% |
59,700
+23,700
| +66% | +$144K |
2026 Q1
1 quarter
|
|
2797
5E Advanced Materials
FEAM
$107M
| $278K | ﹤0.01% |
200,200
+8,800
| +5% | +$14.7K |
2026 Q1
1 quarter
|
|
2798
Barnwell Industries
BRN
$13.1M
| $277K | ﹤0.01% |
274,323
-49,390
| -15% | -$53.7K |
2013 Q2
52 quarters
|
|
2799
Nephros
NEPH
$38.2M
| $277K | ﹤0.01% |
77,504
-21,896
| -22% | -$71.2K |
2025 Q2
4 quarters
|
|
2800
Precision Optics
POCI
$46.7M
| $276K | ﹤0.01% |
+54,100
| New | +$263K |
2026 Q2
0 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.