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 | |
|---|---|---|---|---|---|---|
1376
iShares Russell 1000 ETF
IWB
$50.4B
| $6.1M | 0.01% |
16,700
+6,000
| +56% | +$2.11M |
|
|
GRAL
1377
GRAIL Inc
GRAL
$3.05B
| $6.1M | 0.01% |
103,100
-50,400
| -33% | -$1.93M |
|
1378
Planet Labs
PL
$8.84B
| $6.07M | 0.01% |
468,000
+305,030
| +187% | +$2.35M |
|
1379
ReNew
RNW
$2.48B
| $6.07M | 0.01% |
788,100
+671,300
| +575% | +$5.11M |
|
1380
CNB Financial Corp
CCNE
$1.04B
| $6.05M | 0.01% |
250,145
+209,644
| +518% | +$5.17M |
|
1381
Kamada
KMDA
$435M
| $6.05M | 0.01% |
871,979
+39,974
| +5% | +$291K |
|
1382
Playtika
PLTK
$942M
| $6.04M | 0.01% |
1,552,994
-55,000
| -3% | -$224K |
|
1383
Canadian Natural Resources
CNQ
$99.6B
| $6.03M | 0.01% |
188,700
-705,500
| -79% | -$22.1M |
|
1384
Pitney Bowes
PBI
$2.25B
| $6.02M | 0.01% |
527,671
-204,500
| -28% | -$2.38M |
|
|
TIGR
1385
UP Fintech Holding
TIGR
$818M
| $5.99M | 0.01% |
561,400
-717,700
| -56% | -$7.7M |
|
1386
Southern Missouri Bancorp
SMBC
$846M
| $5.98M | 0.01% |
113,734
+4,100
| +4% | +$229K |
|
1387
InfuSystem Holdings
INFU
$244M
| $5.96M | 0.01% |
575,714
+116,105
| +25% | +$964K |
|
1388
JD.com
JD
$39.1B
| $5.95M | 0.01% |
170,200
-635,800
| -79% | -$20.7M |
|
1389
Penske Automotive Group
PAG
$14.4B
| $5.95M | 0.01% |
34,200
+30,900
| +936% | +$5.51M |
|
1390
Enact Holdings
ACT
$6.86B
| $5.93M | 0.01% |
154,609
-93,200
| -38% | -$3.46M |
|
1391
NatWest
NWG
$75.9B
| $5.91M | 0.01% |
+417,700
| New | +$5.89M |
|
|
HUYA
1392
Huya Inc
HUYA
$531M
| $5.91M | 0.01% |
1,774,000
-700
| -0% | -$2.3K |
|
1393
Grupo SIMEC
SIM
$4.68B
| $5.9M | 0.01% |
210,870
-2,700
| -1% | -$75.2K |
|
1394
C&F Financial
CFFI
$289M
| $5.9M | 0.01% |
87,760
-21
| -0% | -$1.43K |
|
1395
Excelerate Energy
EE
$1.15B
| $5.89M | 0.01% |
234,019
-87,481
| -27% | -$2.18M |
|
1396
iShares 3-7 Year Treasury Bond ETF
IEI
$17.7B
| $5.88M | 0.01% |
49,200
+7,800
| +19% | +$928K |
|
|
SCS
1397
DELISTED
Steelcase
SCS
| $5.87M | 0.01% |
341,100
-35,700
| -9% | -$515K |
|
|
XIFR
1398
XPLR Infrastructure LP
XIFR
$1.1B
| $5.86M | 0.01% |
+576,683
| New | +$5.58M |
|
1399
iShares TIPS Bond ETF
TIP
$14.7B
| $5.86M | 0.01% |
52,700
-22,500
| -30% | -$2.49M |
|
1400
JPMorgan Municipal ETF
JMUB
$8.51B
| $5.81M | 0.01% |
115,200
+85,800
| +292% | +$4.26M |
|
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.