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 | |
|---|---|---|---|---|---|---|
|
WAY
426
Waystar Holding Corp
WAY
$4.8B
| $41.6M | 0.05% |
1,095,900
+235,100
| +27% | +$8.71M |
|
427
TFS Financial
TFSL
$4.93B
| $41.6M | 0.05% |
3,153,791
+160,700
| +5% | +$2.12M |
|
428
ADMA Biologics
ADMA
$2.09B
| $40.6M | 0.05% |
2,770,442
-375,611
| -12% | -$6.44M |
|
429
Invitation Homes
INVH
$18B
| $40.4M | 0.05% |
1,378,883
+159,800
| +13% | +$4.93M |
|
430
Genworth Financial
GNW
$3.77B
| $39.7M | 0.05% |
4,464,900
-1,206,900
| -21% | -$9.96M |
|
431
TIM SA
TIMB
$8.3B
| $39.4M | 0.05% |
1,765,686
+84,000
| +5% | +$1.7M |
|
432
O'Reilly Automotive
ORLY
$74.9B
| $39.4M | 0.05% |
+365,210
| New | +$36.7M |
|
433
Warby Parker
WRBY
$3.19B
| $39.3M | 0.05% |
1,424,000
+6,700
| +0.5% | +$169K |
|
434
Symbotic
SYM
$5.47B
| $39.2M | 0.05% |
727,900
+318,400
| +78% | +$16.1M |
|
435
Banco de Chile
BCH
$20.4B
| $39.1M | 0.05% |
1,291,894
+72,900
| +6% | +$2.12M |
|
436
Warner Music
WMG
$13.3B
| $39M | 0.05% |
1,143,600
+576,800
| +102% | +$18.4M |
|
437
Rush Street Interactive
RSI
$2.84B
| $38.8M | 0.05% |
1,895,300
+106,400
| +6% | +$2.01M |
|
438
HubSpot
HUBS
$12.1B
| $38.8M | 0.05% |
82,900
+41,900
| +102% | +$21.1M |
|
439
Paychex
PAYX
$44.6B
| $38.6M | 0.05% |
+304,201
| New | +$42.2M |
|
440
Coinbase
COIN
$40.6B
| $38.3M | 0.05% |
113,400
-763,900
| -87% | -$259M |
|
441
Sumitomo Mitsui Financial
SMFG
$167B
| $38.2M | 0.05% |
2,284,070
+213,297
| +10% | +$3.42M |
|
442
APA Corp
APA
$14B
| $38.2M | 0.05% |
1,573,257
-896,677
| -36% | -$18.9M |
|
443
Stryker
SYK
$131B
| $38.1M | 0.05% |
+103,200
| New | +$39.9M |
|
444
Targa Resources
TRGP
$57.2B
| $37.9M | 0.05% |
226,491
-315,795
| -58% | -$52.6M |
|
445
FNB Corp
FNB
$6.89B
| $37.9M | 0.05% |
2,349,927
+2,303,600
| +4,972% | +$36.6M |
|
446
America Movil
AMX
$69.9B
| $37.8M | 0.05% |
1,800,228
-100,800
| -5% | -$1.92M |
|
447
UFP Technologies
UFPT
$2.48B
| $37.8M | 0.05% |
189,259
-44,000
| -19% | -$9.68M |
|
448
Mirum Pharmaceuticals
MIRM
$6.02B
| $37.6M | 0.05% |
513,448
+117,100
| +30% | +$7.44M |
|
449
Zoetis
ZTS
$31.2B
| $37.6M | 0.05% |
256,900
+162,300
| +172% | +$24.5M |
|
450
Dycom Industries
DY
$12.3B
| $37.5M | 0.05% |
128,700
+84,400
| +191% | +$22.1M |
|
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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.