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 | |
|---|---|---|---|---|---|---|
276
Trane Technologies
TT
$108B
| $61.7M | 0.08% |
146,168
-137,700
| -49% | -$58.8M |
|
277
Cigna
CI
$72.4B
| $61.6M | 0.08% |
213,759
-16,500
| -7% | -$4.88M |
|
278
Itron
ITRI
$4.52B
| $61.6M | 0.08% |
494,361
+90,400
| +22% | +$11.5M |
|
|
TPC
279
Tutor Perini Cor
TPC
$5.22B
| $61.5M | 0.08% |
938,080
+254,500
| +37% | +$14.2M |
|
280
AGNC Investment
AGNC
$13B
| $61.4M | 0.08% |
6,269,129
+5,882,090
| +1,520% | +$57M |
|
281
Molina Healthcare
MOH
$10.4B
| $61.3M | 0.08% |
320,237
-131,950
| -29% | -$24.3M |
|
282
Rigetti Computing
RGTI
$6.07B
| $61.2M | 0.08% |
+2,054,230
| New | +$36M |
|
283
State Street Blackstone Senior Loan ETF
SRLN
$5.36B
| $60.9M | 0.08% |
1,464,379
-64,087
| -4% | -$2.66M |
|
284
Scorpio Tankers
STNG
$3.76B
| $60.9M | 0.08% |
1,086,015
-99,900
| -8% | -$4.93M |
|
|
MOMO
285
Hello Group
MOMO
$861M
| $60.6M | 0.08% |
8,173,090
-17,200
| -0.2% | -$141K |
|
286
Maplebear
CART
$11.2B
| $60.6M | 0.08% |
1,648,453
-65,800
| -4% | -$3.03M |
|
287
BP
BP
$110B
| $60.6M | 0.08% |
1,758,182
+441,582
| +34% | +$14.8M |
|
288
Allstate
ALL
$66.6B
| $60.3M | 0.08% |
281,100
+158,300
| +129% | +$31.9M |
|
289
Qualys
QLYS
$6.37B
| $60.3M | 0.08% |
455,700
+95,300
| +26% | +$12.9M |
|
290
Petrobras Class A
PBR.A
$104B
| $60M | 0.08% |
5,079,000
+591,000
| +13% | +$6.83M |
|
291
Hudbay
HBM
$12.6B
| $59.9M | 0.08% |
3,952,009
-274,000
| -6% | -$3.14M |
|
292
Skyworks Solutions
SWKS
$10.2B
| $59.7M | 0.08% |
775,883
+353,100
| +84% | +$26.3M |
|
293
Commerce Bancshares
CBSH
$8.46B
| $59.7M | 0.08% |
1,048,095
+227,745
| +28% | +$13.4M |
|
294
T-Mobile US
TMUS
$191B
| $59M | 0.08% |
246,607
-186,284
| -43% | -$45.1M |
|
|
AMRZ
295
Amrize Ltd
AMRZ
$25.7B
| $59M | 0.08% |
+1,215,300
| New | +$62M |
|
296
Walt Disney
DIS
$177B
| $58.7M | 0.08% |
513,014
+170,554
| +50% | +$20.1M |
|
297
Aecom
ACM
$8.14B
| $58.7M | 0.08% |
449,977
+187,250
| +71% | +$22.6M |
|
298
Scotiabank
BNS
$109B
| $58.2M | 0.08% |
899,600
+88,100
| +11% | +$5.19M |
|
299
Pilgrim's Pride
PPC
$6.4B
| $58.1M | 0.08% |
1,425,713
+368,300
| +35% | +$16.7M |
|
300
Campbell Soup
CPB
$6.64B
| $57.9M | 0.08% |
1,833,074
-1,051,753
| -36% | -$34M |
|
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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.