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 | |
|---|---|---|---|---|---|---|
226
Wingstop
WING
$3.03B
| $77M | 0.1% |
305,746
-252,200
| -45% | -$78.4M |
|
227
Toronto Dominion Bank
TD
$201B
| $76.8M | 0.1% |
960,380
-96,300
| -9% | -$7.23M |
|
228
Ralph Lauren
RL
$23.7B
| $76.1M | 0.1% |
242,800
-33,600
| -12% | -$10M |
|
|
QXO
229
QXO Inc
QXO
$16.8B
| $76.1M | 0.1% |
3,992,200
+737,800
| +23% | +$15.3M |
|
230
Wabtec
WAB
$50.3B
| $75.5M | 0.1% |
376,595
+208,700
| +124% | +$41.2M |
|
231
Ventas
VTR
$44.6B
| $75.4M | 0.1% |
1,077,161
-449,633
| -29% | -$30.2M |
|
232
Mobileye
MBLY
$7.54B
| $75.1M | 0.1% |
5,316,246
+2,340,329
| +79% | +$34.8M |
|
233
AT&T
T
$168B
| $74M | 0.1% |
2,619,651
-6,049,666
| -70% | -$172M |
|
234
eBay
EBAY
$47.2B
| $73.6M | 0.1% |
808,840
+256,600
| +46% | +$22.7M |
|
235
Shell
SHEL
$250B
| $73.4M | 0.1% |
1,025,694
+161,494
| +19% | +$11.6M |
|
236
Halozyme
HALO
$11.6B
| $73.4M | 0.1% |
1,000,209
+661,600
| +195% | +$43.9M |
|
237
Applied Digital
APLD
$8.55B
| $72.9M | 0.1% |
3,178,300
+1,600,300
| +101% | +$23.7M |
|
238
Telkom Indonesia
TLK
$14.4B
| $72.8M | 0.1% |
3,870,114
+28,300
| +0.7% | +$523K |
|
239
Colliers International
CIGI
$5.3B
| $72.4M | 0.1% |
463,300
-50,500
| -10% | -$7.77M |
|
240
Atour Lifestyle Holdings
ATAT
$4.63B
| $72.3M | 0.1% |
1,922,368
+132,600
| +7% | +$4.85M |
|
241
Royal Bank of Canada
RY
$292B
| $71.8M | 0.09% |
487,594
-70,500
| -13% | -$9.72M |
|
242
Vanguard Short-Term Corporate Bond ETF
VCSH
$45B
| $71.8M | 0.09% |
898,400
+105,100
| +13% | +$8.36M |
|
243
Invesco Senior Loan ETF
BKLN
$6.75B
| $71.6M | 0.09% |
3,423,200
+177,500
| +5% | +$3.72M |
|
244
Marqeta
MQ
$1.62B
| $71.4M | 0.09% |
3,382,272
+110,175
| +3% | +$2.61M |
|
245
Nextpower Inc
NXT
$15.9B
| $71.2M | 0.09% |
961,708
-79,148
| -8% | -$5.1M |
|
246
Flowers Foods
FLO
$1.52B
| $71.1M | 0.09% |
5,451,164
-387,938
| -7% | -$5.88M |
|
247
Cloudflare
NET
$109B
| $70.5M | 0.09% |
328,500
+273,900
| +502% | +$55.9M |
|
248
Arm
ARM
$287B
| $70.1M | 0.09% |
495,400
+308,800
| +165% | +$45M |
|
|
CPRX
249
DELISTED
Catalyst Pharmaceutical
CPRX
| $69.8M | 0.09% |
3,544,830
+293,314
| +9% | +$6.03M |
|
250
Lumen
LUMN
$6.58B
| $69.2M | 0.09% |
11,302,206
-1,404,403
| -11% | -$6.74M |
|
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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.