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 | |
|---|---|---|---|---|---|---|
|
CRON
1326
Cronos Group
CRON
$1.13B
| $4.85M | 0.01% |
1,845,049
+70,500
| +4% | +$182K |
|
1327
California Water Service
CWT
$3.1B
| $4.85M | 0.01% |
111,900
-189,216
| -63% | -$8.63M |
|
1328
KB Home
KBH
$3.43B
| $4.85M | 0.01% |
+85,900
| New | +$5.28M |
|
1329
TriNet
TNET
$3.15B
| $4.84M | 0.01% |
81,800
-70,000
| -46% | -$4.16M |
|
1330
Regenxbio
RGNX
$687M
| $4.8M | 0.01% |
333,086
+23,600
| +8% | +$294K |
|
1331
Methanex
MEOH
$4.31B
| $4.79M | 0.01% |
120,678
-34,550
| -22% | -$1.29M |
|
1332
Ascent Industries
ACNT
$132M
| $4.78M | 0.01% |
295,100
+21,800
| +8% | +$300K |
|
1333
City Holding Co
CHCO
$2.08B
| $4.74M | 0.01% |
39,788
+14,900
| +60% | +$1.81M |
|
|
SFD
1334
Smithfield Foods
SFD
$8.99B
| $4.74M | 0.01% |
212,300
+173,200
| +443% | +$3.81M |
|
1335
State Street Blackstone Senior Loan ETF
SRLN
$5.37B
| $4.74M | 0.01% |
114,783
-1,349,596
| -92% | -$55.7M |
|
1336
Quad
QUAD
$503M
| $4.73M | 0.01% |
754,700
-65,100
| -8% | -$383K |
|
1337
Vanguard Emerging Markets Government Bond ETF
VWOB
$6.24B
| $4.73M | 0.01% |
70,100
-106,314
| -60% | -$7.17M |
|
|
FFIC
1338
DELISTED
Flushing Financial
FFIC
| $4.73M | 0.01% |
311,500
-34,800
| -10% | -$527K |
|
1339
Harmonic Inc
HLIT
$1.51B
| $4.72M | 0.01% |
477,127
+142,341
| +43% | +$1.43M |
|
1340
Suzano
SUZ
$9.88B
| $4.71M | 0.01% |
504,100
+56,400
| +13% | +$513K |
|
1341
Preferred Bank
PFBC
$1.28B
| $4.7M | 0.01% |
49,755
-24,800
| -33% | -$2.31M |
|
1342
Oric Pharmaceuticals
ORIC
$1.41B
| $4.68M | 0.01% |
572,724
+558,224
| +3,850% | +$6.43M |
|
1343
MacroGenics
MGNX
$248M
| $4.68M | 0.01% |
2,908,631
+1,207,408
| +71% | +$1.9M |
|
1344
Acme United Corp
ACU
$232M
| $4.68M | 0.01% |
116,107
-5,830
| -5% | -$224K |
|
1345
Vanguard High Dividend Yield ETF
VYM
$84B
| $4.68M | 0.01% |
32,600
-22,000
| -40% | -$3.13M |
|
1346
iShares 1-5 Year Investment Grade Corporate Bond ETF
IGSB
$23.4B
| $4.67M | 0.01% |
88,262
-567,926
| -87% | -$30.1M |
|
1347
Steris
STE
$22.8B
| $4.67M | 0.01% |
18,408
-61,400
| -77% | -$15.4M |
|
1348
Nicolet Bankshares
NIC
$3.76B
| $4.65M | 0.01% |
+38,332
| New | +$4.85M |
|
1349
Owlet
OWLT
$184M
| $4.64M | 0.01% |
286,409
+118,386
| +70% | +$1.34M |
|
1350
Intrepid Potash
IPI
$492M
| $4.63M | 0.01% |
167,092
+67,621
| +68% | +$1.82M |
|
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.