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 | |
|---|---|---|---|---|---|---|
1401
Skyward Specialty Insurance
SKWD
$2.45B
| $5.81M | 0.01% |
122,200
+46,900
| +62% | +$2.35M |
|
|
NXRT
1402
NexPoint Residential Trust
NXRT
$636M
| $5.77M | 0.01% |
179,213
+14,000
| +8% | +$461K |
|
1403
United Parks & Resorts
PRKS
$2.06B
| $5.77M | 0.01% |
+111,600
| New | +$5.63M |
|
1404
Crawford & Co Class A
CRD.A
$629M
| $5.77M | 0.01% |
539,224
-6,600
| -1% | -$69.5K |
|
1405
Perrigo
PRGO
$1.78B
| $5.77M | 0.01% |
258,996
-156,200
| -38% | -$3.82M |
|
|
TGNA
1406
DELISTED
TEGNA Inc
TGNA
| $5.77M | 0.01% |
283,600
+58,900
| +26% | +$1.12M |
|
1407
VanEck Intermediate Muni ETF
ITM
$2.13B
| $5.76M | 0.01% |
123,534
-7,166
| -5% | -$328K |
|
1408
Delek US
DK
$4.07B
| $5.75M | 0.01% |
178,069
+144,869
| +436% | +$3.78M |
|
1409
Enanta Pharmaceuticals
ENTA
$383M
| $5.74M | 0.01% |
479,600
+10,100
| +2% | +$80.7K |
|
1410
Powell Industries
POWL
$7.81B
| $5.71M | 0.01% |
56,202
-24,300
| -30% | -$2.06M |
|
1411
Arvinas
ARVN
$579M
| $5.71M | 0.01% |
669,655
-544,700
| -45% | -$4.13M |
|
1412
DigitalOcean
DOCN
$15.3B
| $5.7M | 0.01% |
167,000
-177,900
| -52% | -$5.64M |
|
1413
Harrow
HROW
$1.54B
| $5.69M | 0.01% |
118,117
-24,400
| -17% | -$919K |
|
1414
Surgery Partners
SGRY
$1.99B
| $5.67M | 0.01% |
+262,000
| New | +$5.84M |
|
1415
Valaris
VAL
$5.97B
| $5.67M | 0.01% |
116,200
-221,800
| -66% | -$10.8M |
|
|
HTO
1416
H2O America
HTO
$2.65B
| $5.66M | 0.01% |
116,300
+84,600
| +267% | +$4.22M |
|
|
PVLA
1417
Palvella Therapeutics
PVLA
$2.24B
| $5.62M | 0.01% |
89,697
+22,839
| +34% | +$1.02M |
|
|
AKRO
1418
DELISTED
Akero Therapeutics
AKRO
| $5.61M | 0.01% |
118,100
+90,100
| +322% | +$4.36M |
|
1419
Apogee Enterprises
APOG
$882M
| $5.6M | 0.01% |
128,583
-37,100
| -22% | -$1.59M |
|
1420
Stratasys
SSYS
$774M
| $5.6M | 0.01% |
500,032
-23,000
| -4% | -$248K |
|
|
TIXT
1421
DELISTED
TELUS International
TIXT
| $5.59M | 0.01% |
1,248,700
+666,900
| +115% | +$2.7M |
|
1422
American Express Global Business Travel
GBTG
$4.94B
| $5.59M | 0.01% |
691,620
+26,400
| +4% | +$196K |
|
1423
Sierra Bancorp
BSRR
$535M
| $5.59M | 0.01% |
193,212
-2,900
| -1% | -$87.5K |
|
1424
State Street Materials Select Sector SPDR ETF
XLB
$8.6B
| $5.58M | 0.01% |
+124,600
| New | +$5.63M |
|
1425
Cannae Holdings
CNNE
$651M
| $5.58M | 0.01% |
304,500
+119,909
| +65% | +$2.37M |
|
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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.