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 | |
|---|---|---|---|---|---|---|
526
Zscaler
ZS
$30.4B
| $31.6M | 0.04% |
105,500
-173,400
| -62% | -$49.4M |
|
527
Par Pacific Holdings
PARR
$4.12B
| $31.6M | 0.04% |
891,764
+154,464
| +21% | +$5.03M |
|
528
Pagaya Technologies
PGY
$1.79B
| $31.6M | 0.04% |
1,063,685
+861,500
| +426% | +$27.8M |
|
529
Rithm Capital
RITM
$5.79B
| $31.5M | 0.04% |
2,765,305
+1,956,531
| +242% | +$23.7M |
|
530
Crown Castle
CCI
$32.2B
| $31.5M | 0.04% |
326,103
+97,000
| +42% | +$9.82M |
|
531
Regions Financial
RF
$27B
| $31.4M | 0.04% |
+1,191,721
| New | +$31M |
|
532
McDonald's
MCD
$193B
| $31.4M | 0.04% |
103,328
+12,173
| +13% | +$3.7M |
|
533
Harmony Biosciences
HRMY
$2.24B
| $31.3M | 0.04% |
1,137,071
+207,600
| +22% | +$7.15M |
|
|
DVAX
534
DELISTED
Dynavax Technologies
DVAX
| $31.2M | 0.04% |
3,138,547
+252,018
| +9% | +$2.62M |
|
535
Arlo Technologies
ARLO
$1.54B
| $31.1M | 0.04% |
1,835,759
+217,900
| +13% | +$3.7M |
|
536
PGIM AAA CLO ETF
PAAA
$11.3B
| $31.1M | 0.04% |
604,143
-253,550
| -30% | -$13M |
|
537
Amer Sports
AS
$19.3B
| $31.1M | 0.04% |
893,600
-134,100
| -13% | -$5.06M |
|
538
Usana Health Sciences
USNA
$252M
| $31M | 0.04% |
1,125,530
-29,300
| -3% | -$902K |
|
539
Ovintiv
OVV
$17.2B
| $30.9M | 0.04% |
766,194
-486,300
| -39% | -$19.8M |
|
540
Acadia Pharmaceuticals
ACAD
$4.89B
| $30.9M | 0.04% |
1,449,533
-98,199
| -6% | -$2.32M |
|
541
Loews
L
$23B
| $30.8M | 0.04% |
307,300
+9,900
| +3% | +$936K |
|
542
Compass
COMP
$10.2B
| $30.7M | 0.04% |
3,828,200
-574,095
| -13% | -$4.65M |
|
543
Extreme Networks
EXTR
$3.16B
| $30.7M | 0.04% |
1,486,132
-62,069
| -4% | -$1.23M |
|
544
Universal Technical Institute
UTI
$1.42B
| $30.6M | 0.04% |
941,191
-251,800
| -21% | -$7.4M |
|
545
Camden Property Trust
CPT
$11.1B
| $30.6M | 0.04% |
286,800
-23,400
| -8% | -$2.57M |
|
546
Jack Henry & Associates
JKHY
$11.1B
| $30.6M | 0.04% |
205,219
+181,600
| +769% | +$30.1M |
|
547
American Healthcare REIT
AHR
$10.3B
| $30.5M | 0.04% |
726,931
-94,669
| -12% | -$3.8M |
|
548
BlackRock Flexible Income ETF
BINC
$16.3B
| $30.5M | 0.04% |
572,653
-42,047
| -7% | -$2.22M |
|
549
American Airlines Group
AAL
$9.97B
| $30.5M | 0.04% |
2,711,332
-3,470,939
| -56% | -$42.7M |
|
550
SPDR Gold Trust
GLD
$142B
| $30.4M | 0.04% |
85,600
+43,600
| +104% | +$13.9M |
|
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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.