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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 | |
|---|---|---|---|---|---|---|---|
2351
Upstream Bio Inc
UPB
$153M
| $909K | ﹤0.01% |
131,300
+69,200
| +111% | +$580K |
2025 Q4
2 quarters
|
|
2352
Larimar Therapeutics
LRMR
$251M
| $907K | ﹤0.01% |
297,443
-442,499
| -60% | -$1.76M |
2017 Q1
37 quarters
|
|
2353
CACI
CACI
$13.8B
| $907K | ﹤0.01% |
+1,958
| New | +$1000K |
2026 Q2
0 quarters
|
|
2354
OptimumBank Holdings
OPHC
$111M
| $905K | ﹤0.01% |
155,051
+30,451
| +24% | +$168K |
2020 Q3
23 quarters
|
|
2355
Montana Technologies Corp
AIRJ
$224M
| $903K | ﹤0.01% |
163,000
-230,200
| -59% | -$892K |
2025 Q3
3 quarters
|
|
2356
Sportsman's Warehouse
SPWH
$43.1M
| $902K | ﹤0.01% |
678,300
+194,000
| +40% | +$265K |
2024 Q4
6 quarters
|
|
2357
State Street SPDR Portfolio Emerging Markets ETF
SPEM
$16.9B
| $896K | ﹤0.01% |
17,300
-128,000
| -88% | -$6.55M |
2025 Q4
2 quarters
|
|
2358
iShares MSCI Global Metals & Mining Producers ETF
PICK
$2.33B
| $896K | ﹤0.01% |
15,400
-11,300
| -42% | -$707K |
2026 Q1
1 quarter
|
|
2359
Tredegar Corp
TG
$277M
| $894K | ﹤0.01% |
112,300
-83,100
| -43% | -$705K |
2018 Q2
32 quarters
|
|
2360
Berkshire Hathaway Class B
BRK.B
$1.15T
| $892K | ﹤0.01% |
1,791
+69
| +4% | +$33.2K |
2024 Q1
9 quarters
|
|
2361
Via Transportation Inc
VIA
$2.82B
| $889K | ﹤0.01% |
49,000
-280,500
| -85% | -$4.39M |
2025 Q4
2 quarters
|
|
2362
iShares Russell Mid-Cap Value ETF
IWS
$15.6B
| $889K | ﹤0.01% |
+5,400
| New | +$852K |
2026 Q2
0 quarters
|
|
2363
New Horizon Aircraft
HOVR
$90.6M
| $888K | ﹤0.01% |
450,659
-6,713
| -1% | -$14.3K |
2025 Q2
4 quarters
|
|
2364
Roundhill Nasdaq-100 0DTE Covered Call ETF Strategy ETF
QDTE
$932M
| $887K | ﹤0.01% |
+28,500
| New | +$867K |
2026 Q2
0 quarters
|
|
2365
Aware
AWRE
$19.6M
| $885K | ﹤0.01% |
655,812
+100
| +0% | +$133 |
2013 Q2
52 quarters
|
|
2366
Vera Bradley
VRA
$174M
| $885K | ﹤0.01% |
227,516
+5,800
| +3% | +$21.4K |
2014 Q2
48 quarters
|
|
2367
OFG Bancorp
OFG
$2.13B
| $885K | ﹤0.01% |
+18,034
| New | +$817K |
2026 Q2
0 quarters
|
|
2368
Orthofix Medical
OFIX
$397M
| $885K | ﹤0.01% |
96,791
-5,200
| -5% | -$57.3K |
2013 Q2
52 quarters
|
|
2369
Oramed Pharmaceuticals
ORMP
$172M
| $884K | ﹤0.01% |
183,800
+36,100
| +24% | +$144K |
2023 Q1
13 quarters
|
|
2370
Metagenomi Therapeutics
MGX
$31.3M
| $883K | ﹤0.01% |
742,400
-45,500
| -6% | -$60.9K |
2024 Q3
7 quarters
|
|
2371
Sify Technologies
SIFY
$870M
| $879K | ﹤0.01% |
52,900
+34,900
| +194% | +$536K |
2025 Q3
3 quarters
|
|
2372
Senstar Technologies
SNT
$33.8M
| $878K | ﹤0.01% |
454,769
-8,200
| -2% | -$21.8K |
2013 Q2
52 quarters
|
|
2373
RAVE Restaurant Group
RAVE
$31.3M
| $877K | ﹤0.01% |
268,149
+91,088
| +51% | +$258K |
2020 Q4
22 quarters
|
|
2374
Ryerson Holding Corp
RYZ
$1.46B
| $874K | ﹤0.01% |
35,502
-38,636
| -52% | -$1.02M |
2019 Q4
26 quarters
|
|
2375
SEACOR Marine Holdings
SMHI
$233M
| $874K | ﹤0.01% |
114,200
-6,200
| -5% | -$46K |
2020 Q4
22 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.