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 |
Alphabet (Google) Class A
GOOGL
|
+$546M |
| 2 |
Microsoft
MSFT
|
+$480M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$362M |
| 4 |
Meta Platforms (Facebook)
META
|
+$350M |
| 5 |
Coca-Cola
KO
|
+$266M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Robinhood
HOOD
|
+$1.04B |
| 2 |
Palantir
PLTR
|
+$800M |
| 3 |
Apple
AAPL
|
+$516M |
| 4 |
Netflix
NFLX
|
+$326M |
| 5 |
NVIDIA
NVDA
|
+$313M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 21.71% |
| 2 | Healthcare | 15.16% |
| 3 | Consumer Discretionary | 11.81% |
| 4 | Communication Services | 10.53% |
| 5 | Financials | 9.27% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1926
ImmunityBio
IBRX
$8.02B
| $2.5M | ﹤0.01% |
+1,016,199
| New | +$2.62M |
|
1927
Oppenheimer Holdings
OPY
$1.25B
| $2.5M | ﹤0.01% |
33,800
+14,300
| +73% | +$1.04M |
|
1928
Vanguard Morningstar Large-Cap ETF
VV
$54.8B
| $2.49M | ﹤0.01% |
8,100
+2,700
| +50% | +$799K |
|
1929
Veracyte
VCYT
$3.32B
| $2.49M | ﹤0.01% |
72,584
-537,816
| -88% | -$15.4M |
|
1930
Tarsus Pharmaceuticals
TARS
$3.04B
| $2.47M | ﹤0.01% |
+41,600
| New | +$2.05M |
|
|
LITS
1931
Lite Strategy Inc
LITS
$30.2M
| $2.47M | ﹤0.01% |
1,018,681
+886,335
| +670% | +$3.65M |
|
1932
Krispy Kreme
DNUT
$578M
| $2.46M | ﹤0.01% |
636,100
-379,500
| -37% | -$1.31M |
|
1933
Equity Bancshares
EQBK
$1.06B
| $2.46M | ﹤0.01% |
60,400
-16,400
| -21% | -$664K |
|
1934
Cracker Barrel
CBRL
$1.29B
| $2.45M | ﹤0.01% |
55,632
+44,400
| +395% | +$2.57M |
|
1935
TFI International
TFII
$12.1B
| $2.45M | ﹤0.01% |
27,800
-26,600
| -49% | -$2.43M |
|
1936
Keros Therapeutics
KROS
$200M
| $2.45M | ﹤0.01% |
154,700
+8,100
| +6% | +$120K |
|
1937
Tigo Energy
TYGO
$93.7M
| $2.44M | ﹤0.01% |
975,900
+946,188
| +3,185% | +$1.41M |
|
|
UCTT
1938
Ultra Clean Holdings
UCTT
$3.85B
| $2.44M | ﹤0.01% |
89,500
-167,700
| -65% | -$4.12M |
|
1939
Harmony Gold Mining
HMY
$12.1B
| $2.44M | ﹤0.01% |
134,320
-616,127
| -82% | -$9.3M |
|
1940
Newell Brands
NWL
$2.66B
| $2.44M | ﹤0.01% |
465,127
-26,400
| -5% | -$150K |
|
1941
Madison Square Garden
MSGE
$4.04B
| $2.43M | ﹤0.01% |
53,700
+10,500
| +24% | +$425K |
|
|
AXIA
1942
DELISTED
AXIA Energia
AXIA
| $2.43M | ﹤0.01% |
309,016
-68,320
| -18% | -$430K |
|
1943
Seer Inc
SEER
$115M
| $2.41M | ﹤0.01% |
1,110,300
-7,410
| -0.7% | -$15.8K |
|
1944
FreightCar America
RAIL
$240M
| $2.41M | ﹤0.01% |
246,200
-63,911
| -21% | -$610K |
|
1945
The Joint Corp
JYNT
$120M
| $2.4M | ﹤0.01% |
252,078
-42,800
| -15% | -$464K |
|
1946
Byline Bancorp
BY
$1.78B
| $2.4M | ﹤0.01% |
86,700
-41,600
| -32% | -$1.16M |
|
1947
ARK Autonomous Technology & Robotics ETF
ARKQ
$2.1B
| $2.4M | ﹤0.01% |
21,500
+19,000
| +760% | +$1.88M |
|
1948
RPC Inc
RES
$1.41B
| $2.39M | ﹤0.01% |
503,019
+262,319
| +109% | +$1.24M |
|
|
CAN
1949
Canaan Creative
CAN
$171M
| $2.39M | ﹤0.01% |
2,715,872
-1,341,129
| -33% | -$1.02M |
|
1950
Comstock Holding Companies
CHCI
$175M
| $2.39M | ﹤0.01% |
170,679
+13,700
| +9% | +$196K |
|
Similar funds
Jim Simons's Q3 2025 Portfolio in Review
As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.
- Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
- Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
- Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
- Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
- Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
- Jim Simons opened 516 new positions and closed 581 in Q3 2025.
- Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.
Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.