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 | |
|---|---|---|---|---|---|---|
301
WD-40
WDFC
$3.12B
| $49.7M | 0.08% |
252,268
-33,293
| -12% | -$6.56M |
|
302
FNB Corp
FNB
$6.82B
| $49.2M | 0.08% |
2,878,627
+528,700
| +22% | +$8.64M |
|
303
Crown Holdings
CCK
$13B
| $49.2M | 0.08% |
477,700
+3,200
| +0.7% | +$312K |
|
304
Banco de Chile
BCH
$20.9B
| $49.2M | 0.08% |
1,294,332
+2,438
| +0.2% | +$86.5K |
|
305
Xylem
XYL
$28.8B
| $48.9M | 0.08% |
359,371
+36,200
| +11% | +$5.21M |
|
306
Madrigal Pharmaceuticals
MDGL
$12.4B
| $48.8M | 0.08% |
83,862
-36,820
| -31% | -$18.8M |
|
307
Pacira BioSciences
PCRX
$964M
| $48.8M | 0.08% |
1,884,001
-254,200
| -12% | -$6.04M |
|
308
Valero Energy
VLO
$93.9B
| $48.7M | 0.08% |
299,288
+251,600
| +528% | +$42.6M |
|
309
National Healthcare
NHC
$3.46B
| $48M | 0.07% |
350,117
-23,750
| -6% | -$3.07M |
|
310
RTX Corp
RTX
$298B
| $47.9M | 0.07% |
+261,246
| New | +$45.4M |
|
|
EMBJ
311
Embraer S.A. ADS
EMBJ
$12.8B
| $47.8M | 0.07% |
743,100
+31,200
| +4% | +$1.96M |
|
312
Ferguson
FERG
$48.7B
| $47.5M | 0.07% |
213,300
-135,300
| -39% | -$32.3M |
|
313
Liquidity Services
LQDT
$1.31B
| $47.5M | 0.07% |
1,565,967
-83,222
| -5% | -$2.24M |
|
314
iShares China Large-Cap ETF
FXI
$4.21B
| $46.9M | 0.07% |
1,225,700
+930,700
| +315% | +$36.9M |
|
315
Brookfield Renewable
BEPC
$6.48B
| $46.7M | 0.07% |
1,218,295
-61,500
| -5% | -$2.47M |
|
316
PTC Therapeutics
PTCT
$6.15B
| $46.2M | 0.07% |
607,589
-319,711
| -34% | -$23.2M |
|
317
Ondas Inc
ONDS
$5.59B
| $46.1M | 0.07% |
4,718,300
-3,619,800
| -43% | -$29.1M |
|
318
Ezcorp Inc
EZPW
$1.69B
| $45.7M | 0.07% |
2,354,228
-118,338
| -5% | -$2.23M |
|
319
Best Buy
BBY
$17.5B
| $45.5M | 0.07% |
679,100
+411,300
| +154% | +$31.4M |
|
320
Cellebrite
CLBT
$3.91B
| $45M | 0.07% |
2,494,939
-407,166
| -14% | -$7.31M |
|
321
D-Wave Quantum Inc. Common Stock
QBTS
$7.65B
| $44.8M | 0.07% |
1,712,342
-541,200
| -24% | -$15.8M |
|
322
iRadimed
IRMD
$1.13B
| $44.4M | 0.07% |
456,412
-32,350
| -7% | -$2.78M |
|
323
CarMax
KMX
$8.15B
| $44.4M | 0.07% |
1,149,000
+1,075,700
| +1,468% | +$43M |
|
|
VISN
324
Vistance Networks Inc
VISN
$2.74B
| $43.7M | 0.07% |
2,412,100
-1,138,800
| -32% | -$19.6M |
|
325
Natera
NTRA
$45.6B
| $43.7M | 0.07% |
190,600
-107,900
| -36% | -$22.5M |
|
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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.