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 | |
|---|---|---|---|---|---|---|
101
CorVel
CRVL
$3.09B
| $137M | 0.18% |
1,774,730
-21,300
| -1% | -$1.9M |
|
102
Texas Instruments
TXN
$257B
| $137M | 0.18% |
+743,400
| New | +$145M |
|
103
TKO Group
TKO
$14.2B
| $136M | 0.18% |
675,854
-216,400
| -24% | -$39.5M |
|
104
Biogen
BIIB
$30.1B
| $135M | 0.18% |
964,406
-80,700
| -8% | -$10.9M |
|
105
Target
TGT
$69.2B
| $135M | 0.18% |
1,504,100
+698,800
| +87% | +$68.8M |
|
106
Williams-Sonoma
WSM
$29.5B
| $134M | 0.18% |
685,100
-192,900
| -22% | -$36.9M |
|
107
Petrobras
PBR
$116B
| $134M | 0.18% |
10,547,500
+544,700
| +5% | +$6.84M |
|
108
Cheniere Energy
LNG
$54.8B
| $134M | 0.18% |
568,153
-173,800
| -23% | -$40.9M |
|
109
Frontdoor
FTDR
$5.76B
| $133M | 0.18% |
1,980,987
+101,500
| +5% | +$6.18M |
|
110
Snowflake
SNOW
$116B
| $131M | 0.17% |
579,448
-137,552
| -19% | -$29.5M |
|
111
KE Holdings
BEKE
$18.7B
| $130M | 0.17% |
6,844,394
-651,700
| -9% | -$12.2M |
|
112
Virtu Financial
VIRT
$4.86B
| $129M | 0.17% |
3,644,023
-163,100
| -4% | -$6.7M |
|
113
Walmart Inc
WMT
$901B
| $128M | 0.17% |
+1,240,151
| New | +$123M |
|
114
Clear Secure
YOU
$4.97B
| $127M | 0.17% |
3,813,059
+593,700
| +18% | +$19.7M |
|
115
Cinemark Holdings
CNK
$4.25B
| $126M | 0.17% |
4,506,449
+229,500
| +5% | +$6.34M |
|
116
Futu Holdings
FUTU
$14.7B
| $124M | 0.16% |
715,026
+80,800
| +13% | +$13.4M |
|
|
FISV
117
Fiserv Inc
FISV
$28B
| $124M | 0.16% |
963,427
+229,500
| +31% | +$32.9M |
|
118
Arthur J. Gallagher & Co
AJG
$65B
| $124M | 0.16% |
400,500
+50,900
| +15% | +$15.3M |
|
119
Sea Limited
SE
$80.5B
| $124M | 0.16% |
692,700
-118,400
| -15% | -$20.3M |
|
120
Coupang
CPNG
$29.7B
| $123M | 0.16% |
3,834,268
-1,832,407
| -32% | -$55.4M |
|
121
Procter & Gamble
PG
$338B
| $123M | 0.16% |
+802,150
| New | +$125M |
|
122
Murphy USA
MUSA
$10B
| $123M | 0.16% |
316,362
-38,800
| -11% | -$15.4M |
|
123
Dr. Reddy's Laboratories
RDY
$10.4B
| $123M | 0.16% |
8,782,628
-230,500
| -3% | -$3.32M |
|
124
Chunghwa Telecom
CHT
$32.9B
| $122M | 0.16% |
2,807,867
-86,188
| -3% | -$3.83M |
|
125
Roku
ROKU
$22.4B
| $122M | 0.16% |
1,222,700
+179,500
| +17% | +$16.6M |
|
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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.