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 | |
|---|---|---|---|---|---|---|
|
SNDK
176
Sandisk
SNDK
$186B
| $93.7M | 0.12% |
835,200
+422,100
| +102% | +$24.6M |
|
177
Cenovus Energy
CVE
$55B
| $93.4M | 0.12% |
5,497,187
-1,787,707
| -25% | -$27.9M |
|
178
Ambev
ABEV
$43.8B
| $92.9M | 0.12% |
41,653,800
-1,896,000
| -4% | -$4.34M |
|
179
Brown & Brown
BRO
$23.9B
| $92.6M | 0.12% |
987,000
+183,888
| +23% | +$17.9M |
|
180
Viking Holdings
VIK
$45.3B
| $91.8M | 0.12% |
1,476,105
+101,800
| +7% | +$6.07M |
|
181
Fortive
FTV
$18.6B
| $89.8M | 0.12% |
1,834,000
+1,407,100
| +330% | +$69.3M |
|
182
Toast
TOST
$20.2B
| $89.8M | 0.12% |
2,460,812
+17,000
| +0.7% | +$738K |
|
183
United States Lime & Minerals
USLM
$3.46B
| $89.8M | 0.12% |
682,662
-33,188
| -5% | -$3.83M |
|
184
Motorola Solutions
MSI
$77.3B
| $89.8M | 0.12% |
196,315
-98,400
| -33% | -$44.3M |
|
185
Boston Scientific
BSX
$74.2B
| $89.5M | 0.12% |
917,105
-579,436
| -39% | -$60M |
|
186
KLA
KLAC
$262B
| $89.3M | 0.12% |
+828,090
| New | +$77.3M |
|
187
Fortinet
FTNT
$119B
| $89.2M | 0.12% |
1,060,952
-999,899
| -49% | -$89.2M |
|
188
Dillards
DDS
$10.1B
| $88.5M | 0.12% |
144,100
+14,900
| +12% | +$7.7M |
|
189
American Electric Power
AEP
$67.3B
| $88.5M | 0.12% |
786,900
+765,231
| +3,531% | +$83.7M |
|
190
Mercury Insurance
MCY
$5.86B
| $88.4M | 0.12% |
1,043,182
-128,900
| -11% | -$9.51M |
|
191
EOG Resources
EOG
$75.2B
| $87.4M | 0.12% |
779,800
-5,600
| -0.7% | -$668K |
|
192
Intuitive Surgical
ISRG
$142B
| $87M | 0.11% |
+194,530
| New | +$93.3M |
|
193
Deere & Co
DE
$167B
| $86.7M | 0.11% |
+189,600
| New | +$93.5M |
|
194
Genmab
GMAB
$19.2B
| $86.5M | 0.11% |
2,821,543
+54,793
| +2% | +$1.34M |
|
195
Pfizer
PFE
$152B
| $86.5M | 0.11% |
3,395,558
+2,795,525
| +466% | +$69M |
|
196
JFrog
FROG
$10.4B
| $86M | 0.11% |
1,817,300
+195,400
| +12% | +$8.83M |
|
197
General Motors
GM
$78.4B
| $85.8M | 0.11% |
1,407,600
+511,300
| +57% | +$28.5M |
|
198
GSK
GSK
$102B
| $85.8M | 0.11% |
1,987,953
-262,900
| -12% | -$10.3M |
|
199
IAMGOLD
IAG
$10.4B
| $85.8M | 0.11% |
6,634,404
-4,555,362
| -41% | -$39.9M |
|
200
Aflac
AFL
$60.7B
| $85.5M | 0.11% |
765,000
+344,400
| +82% | +$36.2M |
|
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.