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 | |
|---|---|---|---|---|---|---|
376
Duke Energy
DUK
$96.2B
| $37.3M | 0.06% |
317,850
+90,000
| +39% | +$11M |
|
377
Sumitomo Mitsui Financial
SMFG
$166B
| $37.2M | 0.06% |
1,924,517
-359,553
| -16% | -$6.23M |
|
378
Nokia
NOK
$57.8B
| $37.2M | 0.06% |
+5,748,780
| New | +$35.6M |
|
379
Allegion
ALLE
$14.1B
| $37M | 0.06% |
232,400
+95,000
| +69% | +$15.8M |
|
380
Weyerhaeuser
WY
$17.8B
| $36.9M | 0.06% |
+1,559,381
| New | +$36.1M |
|
381
EOG Resources
EOG
$74.6B
| $36.9M | 0.06% |
351,499
-428,301
| -55% | -$46M |
|
382
Fortinet
FTNT
$120B
| $36.9M | 0.06% |
464,194
-596,758
| -56% | -$49.5M |
|
383
Pinnacle West Capital
PNW
$12.2B
| $36.7M | 0.06% |
413,400
+206,600
| +100% | +$18.5M |
|
384
Coupang
CPNG
$29.5B
| $36.7M | 0.06% |
1,554,380
-2,279,888
| -59% | -$64.9M |
|
385
Rhythm Pharmaceuticals
RYTM
$7.94B
| $36.5M | 0.06% |
341,193
-205,400
| -38% | -$21.8M |
|
386
Amcor
AMCR
$21.5B
| $36.5M | 0.06% |
874,223
-1,020,920
| -54% | -$42.1M |
|
387
American Public Education
APEI
$829M
| $36.4M | 0.06% |
962,920
+34,700
| +4% | +$1.24M |
|
388
Skywest
SKYW
$4.15B
| $36.2M | 0.06% |
360,956
-122,768
| -25% | -$12.3M |
|
389
TIM SA
TIMB
$8.7B
| $36M | 0.06% |
1,848,386
+82,700
| +5% | +$1.82M |
|
390
PTC
PTC
$16.1B
| $35.8M | 0.06% |
+205,500
| New | +$38.2M |
|
391
InMode
INMD
$873M
| $35.8M | 0.06% |
2,436,418
-18,100
| -0.7% | -$266K |
|
392
Nomad Foods
NOMD
$1.6B
| $35.7M | 0.06% |
2,852,067
-945,360
| -25% | -$11.5M |
|
393
TFS Financial
TFSL
$4.86B
| $35.5M | 0.06% |
2,656,791
-497,000
| -16% | -$6.81M |
|
394
Par Pacific Holdings
PARR
$3.76B
| $35.5M | 0.06% |
1,008,964
+117,200
| +13% | +$4.66M |
|
395
DTE Energy
DTE
$28.7B
| $35.4M | 0.06% |
274,800
-49,800
| -15% | -$6.76M |
|
396
NVR
NVR
$16.8B
| $35.4M | 0.06% |
4,860
+3,780
| +350% | +$28.3M |
|
397
Carlisle Companies
CSL
$15.3B
| $35.2M | 0.05% |
+110,020
| New | +$35.7M |
|
398
HEICO Corp
HEI
$51.4B
| $35.2M | 0.05% |
108,724
+78,960
| +265% | +$25M |
|
399
Star Bulk Carriers
SBLK
$3.09B
| $35.2M | 0.05% |
1,830,389
-101,716
| -5% | -$1.9M |
|
|
WAY
400
Waystar Holding Corp
WAY
$4.67B
| $35.1M | 0.05% |
1,072,300
-23,600
| -2% | -$841K |
|
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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.