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 | |
|---|---|---|---|---|---|---|
2351
Century Therapeutics
IPSC
$348M
| $1.29M | ﹤0.01% |
2,586,900
+564,400
| +28% | +$304K |
|
2352
Movado Group
MOV
$803M
| $1.29M | ﹤0.01% |
67,798
-70,400
| -51% | -$1.22M |
|
2353
Oportun Financial
OPRT
$355M
| $1.28M | ﹤0.01% |
208,179
-139,621
| -40% | -$899K |
|
2354
iShares Core S&P Total US Stock Market ETF
ITOT
$98.3B
| $1.28M | ﹤0.01% |
8,800
-14,200
| -62% | -$1.99M |
|
2355
Blink Charging
BLNK
$85.9M
| $1.28M | ﹤0.01% |
+780,375
| New | +$867K |
|
2356
Pyxis Oncology
PYXS
$191M
| $1.28M | ﹤0.01% |
576,336
+158,514
| +38% | +$228K |
|
2357
Alarm.com
ALRM
$2.73B
| $1.28M | ﹤0.01% |
24,100
-1,000
| -4% | -$55.8K |
|
|
RPTX
2358
DELISTED
Repare Therapeutics
RPTX
| $1.27M | ﹤0.01% |
724,160
+201,301
| +39% | +$322K |
|
2359
NI Holdings
NODK
$312M
| $1.27M | ﹤0.01% |
93,991
-7,700
| -8% | -$101K |
|
2360
Rentokil
RTO
$12B
| $1.27M | ﹤0.01% |
50,400
-49,300
| -49% | -$1.2M |
|
2361
iShares MSCI KLD 400 Social ETF
DSI
$5.58B
| $1.27M | ﹤0.01% |
10,100
+6,600
| +189% | +$798K |
|
2362
SP Funds S&P 500 Sharia ETF
SPUS
$3.08B
| $1.27M | ﹤0.01% |
+25,700
| New | +$1.2M |
|
|
RERE
2363
ATRenew
RERE
$1.01B
| $1.27M | ﹤0.01% |
276,000
-32,300
| -10% | -$130K |
|
2364
Vanguard Information Technology ETF
VGT
$150B
| $1.27M | ﹤0.01% |
+13,600
| New | +$1.19M |
|
2365
Murphy Oil
MUR
$4.96B
| $1.27M | ﹤0.01% |
44,600
-239,709
| -84% | -$6.05M |
|
|
PTIR
2366
GraniteShares 2x Long PLTR Daily ETF
PTIR
$419M
| $1.27M | ﹤0.01% |
+39,000
| New | +$1.04M |
|
2367
Offerpad Solutions
OPAD
$21.5M
| $1.26M | ﹤0.01% |
30,305
+27,820
| +1,120% | +$763K |
|
|
VIOT
2368
Viomi Technology
VIOT
$47.2M
| $1.26M | ﹤0.01% |
377,756
-19,708
| -5% | -$64.8K |
|
2369
Huron Consulting
HURN
$2.42B
| $1.26M | ﹤0.01% |
8,558
-60,500
| -88% | -$8.25M |
|
2370
Peoples Financial Services
PFIS
$714M
| $1.26M | ﹤0.01% |
25,827
-6,285
| -20% | -$321K |
|
2371
Avalo Therapeutics
AVTX
$1.05B
| $1.25M | ﹤0.01% |
+98,700
| New | +$849K |
|
2372
JPMorgan BetaBuilders Europe ETF
BBEU
$9.52B
| $1.25M | ﹤0.01% |
18,000
+10,900
| +154% | +$742K |
|
2373
PureCycle Technologies
PCT
$1.4B
| $1.25M | ﹤0.01% |
+95,000
| New | +$1.32M |
|
2374
RxSight
RXST
$287M
| $1.25M | ﹤0.01% |
138,700
-287,700
| -67% | -$2.53M |
|
2375
Sutro Biopharma
STRO
$340M
| $1.24M | ﹤0.01% |
142,480
+51,160
| +56% | +$435K |
|
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.