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 | |
|---|---|---|---|---|---|---|
|
XOMA
2426
DELISTED
Xoma
XOMA
| $1.11M | ﹤0.01% |
28,900
+17,000
| +143% | +$528K |
|
2427
CI&T Inc
CINT
$472M
| $1.11M | ﹤0.01% |
215,500
+57,700
| +37% | +$313K |
|
2428
Sagimet Biosciences
SGMT
$640M
| $1.11M | ﹤0.01% |
161,400
+130,500
| +422% | +$1.06M |
|
|
BAI
2429
iShares A.I. Innovation and Tech Active ETF
BAI
$14.4B
| $1.11M | ﹤0.01% |
+32,400
| New | +$1.02M |
|
2430
Zura Bio
ZURA
$536M
| $1.11M | ﹤0.01% |
255,400
+51,267
| +25% | +$92.2K |
|
|
JCAP
2431
Jefferson Capital
JCAP
$1.48B
| $1.1M | ﹤0.01% |
+64,000
| New | +$1.14M |
|
2432
Red River Bancshares
RRBI
$681M
| $1.1M | ﹤0.01% |
17,000
-300
| -2% | -$19.1K |
|
2433
Ampco-Pittsburgh
AP
$195M
| $1.1M | ﹤0.01% |
480,619
+31,829
| +7% | +$94.5K |
|
|
USAS
2434
Americas Gold and Silver
USAS
$1.76B
| $1.1M | ﹤0.01% |
295,215
-444,785
| -60% | -$1.16M |
|
2435
First US Bancshares
FUSB
$90.8M
| $1.1M | ﹤0.01% |
91,321
-1,000
| -1% | -$12.4K |
|
2436
VanEck Gold Miners ETF
GDX
$27.5B
| $1.09M | ﹤0.01% |
14,300
-107,000
| -88% | -$6.44M |
|
2437
Eagle Bancorp
EGBN
$875M
| $1.09M | ﹤0.01% |
54,000
-43,680
| -45% | -$847K |
|
|
ZEPP
2438
Zepp Health
ZEPP
$81.2M
| $1.09M | ﹤0.01% |
23,824
| – | – |
|
2439
JPMorgan Active Growth ETF
JGRO
$10.1B
| $1.09M | ﹤0.01% |
11,600
+1,500
| +15% | +$134K |
|
2440
1stdibs.com
DIBS
$162M
| $1.09M | ﹤0.01% |
419,799
+29,669
| +8% | +$80.8K |
|
2441
ACNB Corp
ACNB
$658M
| $1.09M | ﹤0.01% |
24,656
+5,900
| +31% | +$260K |
|
2442
VanEck Pharmaceutical ETF
PPH
$984M
| $1.08M | ﹤0.01% |
12,000
-2,400
| -17% | -$210K |
|
|
MBCN
2443
DELISTED
Middlefield Banc Corp
MBCN
| $1.08M | ﹤0.01% |
36,112
-900
| -2% | -$27.1K |
|
2444
Champions Oncology
CSBR
$70.7M
| $1.08M | ﹤0.01% |
167,261
-13,778
| -8% | -$97.1K |
|
2445
Precision BioSciences
DTIL
$206M
| $1.08M | ﹤0.01% |
196,177
+115,900
| +144% | +$555K |
|
|
PDM
2446
Piedmont Realty Trust
PDM
$1.2B
| $1.08M | ﹤0.01% |
120,026
-312,374
| -72% | -$2.51M |
|
|
CLYM
2447
Climb Bio
CLYM
$937M
| $1.08M | ﹤0.01% |
537,100
+41,600
| +8% | +$77.2K |
|
2448
Paramount Gold Nevada
PZG
$132M
| $1.08M | ﹤0.01% |
876,200
-150,200
| -15% | -$128K |
|
2449
Flanigan's Enterprises
BDL
$89.8M
| $1.08M | ﹤0.01% |
33,793
-200
| -0.6% | -$6.15K |
|
|
IONX
2450
Defiance Daily Target 2X Long IONQ ETF
IONX
$236M
| $1.08M | ﹤0.01% |
+6,133
| New | +$718K |
|
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.