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 | |
|---|---|---|---|---|---|---|
676
EXL Service
EXLS
$5.36B
| $22.1M | 0.03% |
501,100
-286,400
| -36% | -$12.4M |
|
677
Nu Skin
NUS
$236M
| $22.1M | 0.03% |
1,809,196
+18,997
| +1% | +$200K |
|
678
Cummins
CMI
$87B
| $22M | 0.03% |
52,200
+36,000
| +222% | +$13.8M |
|
|
LTM
679
LATAM Airlines Group S.A.
LTM
$15.1B
| $22M | 0.03% |
487,000
+232,100
| +91% | +$10.4M |
|
680
Chemed
CHE
$7.02B
| $21.9M | 0.03% |
49,000
-39,500
| -45% | -$17.9M |
|
681
Tower Semiconductor
TSEM
$28.6B
| $21.9M | 0.03% |
303,049
-20,600
| -6% | -$1.12M |
|
682
Pediatrix Medical
MD
$2.14B
| $21.9M | 0.03% |
1,306,000
+102,100
| +8% | +$1.53M |
|
|
IMOS
683
ChipMOS TECHNOLOGIES
IMOS
$2.01B
| $21.8M | 0.03% |
1,141,590
-10,600
| -0.9% | -$187K |
|
684
Pinduoduo
PDD
$120B
| $21.7M | 0.03% |
164,400
-577,600
| -78% | -$68.4M |
|
685
QCR Holdings
QCRH
$1.75B
| $21.7M | 0.03% |
286,572
-57,200
| -17% | -$4.31M |
|
686
Tootsie Roll Industries
TR
$3.02B
| $21.6M | 0.03% |
531,468
-23,175
| -4% | -$877K |
|
687
Payoneer
PAYO
$2.42B
| $21.6M | 0.03% |
3,566,100
+258,900
| +8% | +$1.74M |
|
688
Progyny
PGNY
$1.99B
| $21.6M | 0.03% |
1,002,509
+274,709
| +38% | +$6.24M |
|
689
Carriage Services
CSV
$555M
| $21.6M | 0.03% |
483,900
-42,800
| -8% | -$1.93M |
|
690
ThredUp
TDUP
$416M
| $21.6M | 0.03% |
2,280,726
+237,100
| +12% | +$2.24M |
|
691
Baytex Energy
BTE
$3B
| $21.5M | 0.03% |
9,202,700
-9,601,300
| -51% | -$20.6M |
|
692
SLM Corp
SLM
$5.22B
| $21.5M | 0.03% |
775,100
+697,501
| +899% | +$21.8M |
|
693
Telefônica Brasil
VIV
$18.1B
| $21.5M | 0.03% |
1,682,500
-253,100
| -13% | -$3.03M |
|
694
Oneok
OKE
$58.4B
| $21.3M | 0.03% |
+292,507
| New | +$22.4M |
|
695
Amdocs
DOX
$6.23B
| $21.3M | 0.03% |
+259,900
| New | +$22.5M |
|
|
SVM
696
Silvercorp Metals
SVM
$2.61B
| $21.3M | 0.03% |
3,372,196
-1,408,500
| -29% | -$6.89M |
|
697
Ouster
OUST
$3.25B
| $21.2M | 0.03% |
783,000
+392,400
| +100% | +$10.9M |
|
698
NetApp
NTAP
$40.2B
| $21.2M | 0.03% |
178,680
-82,300
| -32% | -$9.2M |
|
699
Tyson Foods
TSN
$19.8B
| $21.2M | 0.03% |
389,800
-653,500
| -63% | -$36.1M |
|
700
ATI
ATI
$30.9B
| $21.1M | 0.03% |
259,992
-221,700
| -46% | -$18M |
|
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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.