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 |
Costco
COST
|
+$616M |
| 2 |
Netflix
NFLX
|
+$481M |
| 3 |
Micron Technology
MU
|
+$416M |
| 4 |
Tesla
TSLA
|
+$416M |
| 5 |
Procter & Gamble
PG
|
+$322M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$885M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$660M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$463M |
| 4 |
Applovin
APP
|
+$430M |
| 5 |
Meta Platforms (Facebook)
META
|
+$354M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 20.84% |
| 2 | Healthcare | 15.77% |
| 3 | Consumer Discretionary | 13.88% |
| 4 | Industrials | 9.94% |
| 5 | Financials | 8.79% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
201
W.W. Grainger
GWW
$61.3B
| $75M | 0.12% |
74,280
+7,480
| +11% | +$7.25M |
|
202
Collegium Pharmaceutical
COLL
$843M
| $74.9M | 0.12% |
1,617,349
+18,160
| +1% | +$760K |
|
203
Brady Corp
BRC
$4.48B
| $74.7M | 0.12% |
953,640
-114,400
| -11% | -$8.85M |
|
|
MRSH
204
Marsh
MRSH
$91.3B
| $73.8M | 0.11% |
397,600
-722,700
| -65% | -$135M |
|
205
AGNC Investment
AGNC
$12.9B
| $73.6M | 0.11% |
6,861,679
+592,550
| +9% | +$6.09M |
|
206
ResMed
RMD
$32.6B
| $73.3M | 0.11% |
304,480
+246,480
| +425% | +$63M |
|
207
Lockheed Martin
LMT
$138B
| $73.3M | 0.11% |
+151,480
| New | +$72.5M |
|
208
Dillards
DDS
$10.1B
| $72.6M | 0.11% |
119,780
-24,320
| -17% | -$15.3M |
|
209
Herbalife
HLF
$1.23B
| $72.4M | 0.11% |
5,619,568
-1,068,900
| -16% | -$11.3M |
|
210
State Street Financial Select Sector SPDR ETF
XLF
$59B
| $72.3M | 0.11% |
1,319,810
+1,230,400
| +1,376% | +$65.6M |
|
211
DNOW Inc
DNOW
$3.01B
| $71.5M | 0.11% |
5,394,325
+1,605,411
| +42% | +$22.5M |
|
212
Entergy
ETR
$49.7B
| $70.5M | 0.11% |
762,900
+190,900
| +33% | +$18.1M |
|
213
Morningstar
MORN
$7.33B
| $70.4M | 0.11% |
323,770
-137,000
| -30% | -$29.7M |
|
214
Biogen
BIIB
$30.1B
| $70.3M | 0.11% |
399,196
-565,210
| -59% | -$92.3M |
|
215
GE Aerospace
GE
$382B
| $70M | 0.11% |
+227,357
| New | +$68.5M |
|
216
General Mills
GIS
$20.2B
| $70M | 0.11% |
1,505,323
-25,877
| -2% | -$1.23M |
|
217
Abbott
ABT
$190B
| $69.9M | 0.11% |
+558,066
| New | +$71.1M |
|
218
Verizon
VZ
$196B
| $68.8M | 0.11% |
1,689,293
+215,204
| +15% | +$8.73M |
|
219
Brookdale Senior Living
BKD
$3B
| $68.7M | 0.11% |
6,363,464
-925,856
| -13% | -$9.1M |
|
220
Union Pacific
UNP
$174B
| $68.3M | 0.11% |
295,200
-650,500
| -69% | -$148M |
|
221
Astera Labs
ALAB
$54.1B
| $67.6M | 0.1% |
406,401
-436,900
| -52% | -$73.1M |
|
222
Tapestry
TPR
$32.4B
| $66.6M | 0.1% |
521,494
-194,406
| -27% | -$22.2M |
|
|
FIG
223
Figma
FIG
$13.3B
| $66.1M | 0.1% |
+1,768,200
| New | +$79.9M |
|
224
Carrier Global
CARR
$52.4B
| $65.5M | 0.1% |
+1,239,100
| New | +$68.9M |
|
225
HF Sinclair
DINO
$15.2B
| $65.4M | 0.1% |
1,418,447
+608,472
| +75% | +$31.4M |
|
Similar funds
Jim Simons's Q4 2025 Portfolio in Review
As of Q4 2025, Jim Simons held 3,923 positions worth $64.5B, down 15% from $75.8B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons withdrew a net $10.1B in Q4 2025, closing 737 positions and reducing 1,682 holdings. Its most notable exit was Meta Platforms (Facebook), an estimated $354M position sold in full.
By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in ServiceNow worth $204M.
- Jim Simons's largest Q4 2025 buy was ServiceNow: 1,331,977 shares worth $204M.
- Jim Simons added most to Costco in Q4 2025, an estimated $616M increase.
- Jim Simons's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $885M.
- Jim Simons fully exited Meta Platforms (Facebook) in Q4 2025, selling an estimated $354M.
- Jim Simons's ten largest holdings make up 12% of its $64.5B portfolio in Q4 2025.
- Jim Simons opened 466 new positions and closed 737 in Q4 2025.
- Jim Simons's portfolio value fell 15% quarter-over-quarter to $64.5B.
Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.