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 | |
|---|---|---|---|---|---|---|
476
McDonald's
MCD
$193B
| $27.9M | 0.04% |
91,437
-11,891
| -12% | -$3.64M |
|
477
Royal Bank of Canada
RY
$298B
| $27.9M | 0.04% |
163,394
-324,200
| -66% | -$49.8M |
|
478
Plug Power
PLUG
$3.19B
| $27.7M | 0.04% |
+14,052,600
| New | +$36.7M |
|
479
Ironwood Pharmaceuticals
IRWD
$676M
| $27.7M | 0.04% |
8,204,973
-147,200
| -2% | -$382K |
|
480
APA Corp
APA
$13.9B
| $27.5M | 0.04% |
1,126,157
-447,100
| -28% | -$10.8M |
|
481
Willis Lease Finance
WLFC
$1.14B
| $27.5M | 0.04% |
607,791
-92,400
| -13% | -$3.98M |
|
482
Sherwin-Williams
SHW
$87.4B
| $27.5M | 0.04% |
+84,780
| New | +$28.4M |
|
483
Ramaco Resources Class A
METC
$669M
| $27.5M | 0.04% |
1,526,164
+9,860
| +0.7% | +$259K |
|
484
Alliant Energy
LNT
$18.2B
| $27.4M | 0.04% |
421,400
+161,000
| +62% | +$10.8M |
|
485
AeroVironment
AVAV
$9.64B
| $27.3M | 0.04% |
+112,856
| New | +$35.5M |
|
486
Elbit Systems
ESLT
$36.8B
| $27.3M | 0.04% |
47,174
-17,426
| -27% | -$8.74M |
|
487
Crane Co
CR
$12.7B
| $27.2M | 0.04% |
147,600
-44,800
| -23% | -$8.31M |
|
|
GAP
488
The Gap Inc
GAP
$7.29B
| $27.1M | 0.04% |
1,058,882
-216,525
| -17% | -$5.25M |
|
|
CWEN.A
489
DELISTED
Clearway Energy Class A
CWEN.A
| $27M | 0.04% |
858,329
-191,200
| -18% | -$5.98M |
|
490
SPDR Gold Trust
GLD
$142B
| $26.6M | 0.04% |
67,080
-18,520
| -22% | -$7.07M |
|
491
Kohl's
KSS
$2.22B
| $26.3M | 0.04% |
+1,290,700
| New | +$24.2M |
|
492
CleanSpark
CLSK
$2.98B
| $26.1M | 0.04% |
+2,581,482
| New | +$38.7M |
|
493
Tyler Technologies
TYL
$13.3B
| $26.1M | 0.04% |
57,520
-29,080
| -34% | -$13.9M |
|
494
Extreme Networks
EXTR
$3.21B
| $26.1M | 0.04% |
1,565,865
+79,733
| +5% | +$1.46M |
|
495
RPM International
RPM
$14.5B
| $25.9M | 0.04% |
249,400
+88,800
| +55% | +$9.61M |
|
496
Magnolia Oil & Gas
MGY
$6.12B
| $25.9M | 0.04% |
1,184,302
+67,991
| +6% | +$1.55M |
|
497
Cloudflare
NET
$118B
| $25.7M | 0.04% |
130,400
-198,100
| -60% | -$41.9M |
|
498
Yelp
YELP
$1.31B
| $25.7M | 0.04% |
844,634
-127,766
| -13% | -$3.94M |
|
499
Millicom
TIGO
$15.9B
| $25.6M | 0.04% |
462,392
-238,242
| -34% | -$12M |
|
500
Aurinia Pharmaceuticals
AUPH
$2.01B
| $25.4M | 0.04% |
1,590,135
+140,535
| +10% | +$1.99M |
|
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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.