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 | |
|---|---|---|---|---|---|---|
576
Centuri Holdings
CTRI
$2.33B
| $21.2M | 0.03% |
837,700
-26,000
| -3% | -$581K |
|
|
BBT
577
Beacon Financial Corp
BBT
$2.71B
| $21M | 0.03% |
797,158
-93,640
| -11% | -$2.37M |
|
578
Progyny
PGNY
$1.99B
| $21M | 0.03% |
818,367
-184,142
| -18% | -$4.23M |
|
579
Americold
COLD
$4.32B
| $20.9M | 0.03% |
1,622,000
-609,800
| -27% | -$7.47M |
|
580
SolarEdge
SEDG
$1.98B
| $20.8M | 0.03% |
722,640
-449,060
| -38% | -$15.7M |
|
581
CareDx
CDNA
$2.45B
| $20.8M | 0.03% |
1,105,198
-50,400
| -4% | -$844K |
|
582
Boise Cascade
BCC
$2.94B
| $20.8M | 0.03% |
282,749
+72,500
| +34% | +$5.29M |
|
583
Univest Financial
UVSP
$1.19B
| $20.8M | 0.03% |
635,230
-8,059
| -1% | -$252K |
|
|
SVM
584
Silvercorp Metals
SVM
$2.61B
| $20.6M | 0.03% |
2,464,396
-907,800
| -27% | -$6.59M |
|
585
Expeditors International
EXPD
$24.3B
| $20.6M | 0.03% |
137,916
+132,400
| +2,400% | +$18M |
|
586
Visteon
VC
$2.86B
| $20.5M | 0.03% |
215,700
+76,100
| +55% | +$8.06M |
|
587
FLEX LNG
FLNG
$1.64B
| $20.5M | 0.03% |
821,604
-72,600
| -8% | -$1.85M |
|
588
Shake Shack
SHAK
$2.98B
| $20.5M | 0.03% |
+252,000
| New | +$22.2M |
|
589
Phibro Animal Health
PAHC
$1.38B
| $20.4M | 0.03% |
545,300
-9,900
| -2% | -$402K |
|
590
Rush Enterprises Class B
RUSHB
$9.37B
| $20.3M | 0.03% |
361,647
-32,800
| -8% | -$1.79M |
|
591
Moelis & Co
MC
$5.21B
| $20.3M | 0.03% |
295,944
-73,500
| -20% | -$4.91M |
|
592
Rayonier
RYN
$6.54B
| $20.3M | 0.03% |
939,619
+439,384
| +88% | +$9.93M |
|
593
GeoPark
GPRK
$608M
| $20.2M | 0.03% |
2,730,853
-428,107
| -14% | -$3.13M |
|
|
CSR
594
Centerspace
CSR
$939M
| $20.2M | 0.03% |
303,138
-38,816
| -11% | -$2.44M |
|
595
Kearny Financial
KRNY
$604M
| $20.2M | 0.03% |
2,720,716
-209,300
| -7% | -$1.44M |
|
596
Genworth Financial
GNW
$3.77B
| $20.2M | 0.03% |
2,232,300
-2,232,600
| -50% | -$19.4M |
|
597
Banco Bradesco
BBD
$34.3B
| $20.1M | 0.03% |
6,039,195
-1,744,100
| -22% | -$5.93M |
|
598
Cameco
CCJ
$42.6B
| $20.1M | 0.03% |
219,700
-16,789
| -7% | -$1.51M |
|
599
Liberty Media Series C
FWONK
$26B
| $20.1M | 0.03% |
203,779
+30,200
| +17% | +$2.96M |
|
600
Laureate Education
LAUR
$5.15B
| $20.1M | 0.03% |
596,200
+578,100
| +3,194% | +$17.8M |
|
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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.