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 | |
|---|---|---|---|---|---|---|
1501
Acacia Research
ACTG
$447M
| $4.96M | 0.01% |
1,526,000
-33,086
| -2% | -$115K |
|
1502
Rogers Corp
ROG
$2.54B
| $4.96M | 0.01% |
61,600
-900
| -1% | -$67K |
|
1503
NOV
NOV
$7.59B
| $4.94M | 0.01% |
372,510
+112,700
| +43% | +$1.46M |
|
|
CRON
1504
Cronos Group
CRON
$1.14B
| $4.93M | 0.01% |
1,774,549
+292,800
| +20% | +$689K |
|
1505
Freshpet
FRPT
$3.53B
| $4.93M | 0.01% |
+89,396
| New | +$5.54M |
|
1506
Forrester Research
FORR
$221M
| $4.92M | 0.01% |
464,606
-5,018
| -1% | -$50.8K |
|
1507
Vanguard Morningstar Value ETF
VTV
$194B
| $4.92M | 0.01% |
26,400
+16,200
| +159% | +$2.93M |
|
1508
iShares iBonds Dec 2027 Term Corporate ETF
IBDS
$3.87B
| $4.9M | 0.01% |
201,516
-163,338
| -45% | -$3.96M |
|
1509
BioLife Solutions
BLFS
$1.72B
| $4.9M | 0.01% |
192,200
-113,900
| -37% | -$2.7M |
|
|
YSG
1510
Yatsen Holding
YSG
$316M
| $4.9M | 0.01% |
540,707
-300
| -0.1% | -$2.85K |
|
1511
BlueLinx
BXC
$683M
| $4.9M | 0.01% |
67,000
-8,200
| -11% | -$646K |
|
|
HTBK
1512
DELISTED
Heritage Commerce
HTBK
| $4.85M | 0.01% |
488,400
+46,900
| +11% | +$471K |
|
1513
Sibanye-Stillwater
SBSW
$7.6B
| $4.85M | 0.01% |
431,304
-2,536,300
| -85% | -$22.2M |
|
1514
Forum Energy Technologies
FET
$968M
| $4.84M | 0.01% |
181,347
+73,847
| +69% | +$1.71M |
|
1515
Inogen
INGN
$152M
| $4.83M | 0.01% |
591,400
-134,706
| -19% | -$1.01M |
|
1516
SGHC Ltd
SGHC
$6.76B
| $4.83M | 0.01% |
365,601
-7,900
| -2% | -$93K |
|
1517
Park Hotels & Resorts
PK
$3.04B
| $4.82M | 0.01% |
434,752
-108,400
| -20% | -$1.22M |
|
1518
State Street Financial Select Sector SPDR ETF
XLF
$59.4B
| $4.82M | 0.01% |
89,410
-499,700
| -85% | -$26.5M |
|
1519
State Street SPDR Bloomberg Convertible Securities ETF
CWB
$5.75B
| $4.81M | 0.01% |
53,100
-26,000
| -33% | -$2.24M |
|
1520
Boyd Gaming
BYD
$6.11B
| $4.8M | 0.01% |
55,500
-96,000
| -63% | -$8.06M |
|
1521
Lightpath Technologies
LPTH
$939M
| $4.79M | 0.01% |
604,547
-24,800
| -4% | -$111K |
|
1522
NRC Health Common Stock
NRC
$462M
| $4.79M | 0.01% |
375,084
+3,100
| +0.8% | +$46.5K |
|
1523
Alerian MLP ETF
AMLP
$13.2B
| $4.79M | 0.01% |
102,100
+45,100
| +79% | +$2.18M |
|
1524
Empire State Realty Trust
ESRT
$822M
| $4.78M | 0.01% |
624,400
+64,400
| +12% | +$492K |
|
|
FFIC
1525
DELISTED
Flushing Financial
FFIC
| $4.78M | 0.01% |
346,300
-41,755
| -11% | -$543K |
|
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.