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 | |
|---|---|---|---|---|---|---|
2251
iShares Select Dividend ETF
DVY
$24B
| $1.04M | ﹤0.01% |
+7,400
| New | +$1.05M |
|
|
TSSI
2252
TSS Inc
TSSI
$336M
| $1.04M | ﹤0.01% |
147,168
-267,932
| -65% | -$3.46M |
|
2253
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
$17.9B
| $1.04M | ﹤0.01% |
+12,900
| New | +$1.04M |
|
|
XOMA
2254
DELISTED
Xoma
XOMA
| $1.04M | ﹤0.01% |
39,017
+10,117
| +35% | +$326K |
|
2255
Invesco Galaxy Bitcoin ETF
BTCO
$424M
| $1.04M | ﹤0.01% |
11,900
-11,700
| -50% | -$1.17M |
|
2256
AMES National
ATLO
$281M
| $1.04M | ﹤0.01% |
45,084
-3,800
| -8% | -$81.7K |
|
2257
AMCON Distributing
DIT
$66.4M
| $1.03M | ﹤0.01% |
14,003
-45
| -0.3% | -$3.45K |
|
2258
Stereotaxis
STXS
$137M
| $1.03M | ﹤0.01% |
448,400
+68,000
| +18% | +$181K |
|
|
KBDC
2259
Kayne Anderson BDC
KBDC
$909M
| $1.03M | ﹤0.01% |
72,000
-86,559
| -55% | -$1.26M |
|
|
MBX
2260
MBX Biosciences
MBX
$3.23B
| $1.03M | ﹤0.01% |
+32,644
| New | +$792K |
|
2261
First Community Bankshares
FCBC
$933M
| $1.03M | ﹤0.01% |
30,494
-19,192
| -39% | -$641K |
|
2262
Lake Shore Bancorp
LSBK
$135M
| $1.03M | ﹤0.01% |
70,041
+12,900
| +23% | +$181K |
|
2263
Expensify
EXFY
$202M
| $1.03M | ﹤0.01% |
679,600
-24,250
| -3% | -$38.4K |
|
2264
Cerus
CERS
$572M
| $1.03M | ﹤0.01% |
498,000
-341,500
| -41% | -$592K |
|
2265
Dimensional US High Profitability ETF
DUHP
$12.8B
| $1.02M | ﹤0.01% |
26,900
-76,200
| -74% | -$2.89M |
|
2266
Sensus Healthcare
SRTS
$52M
| $1.02M | ﹤0.01% |
257,034
-4,100
| -2% | -$15.2K |
|
2267
New Horizon Aircraft
HOVR
$133M
| $1.02M | ﹤0.01% |
695,100
+90,500
| +15% | +$193K |
|
2268
Peoples Bancorp of North Carolina
PEBK
$237M
| $1.02M | ﹤0.01% |
28,207
-4,500
| -14% | -$145K |
|
2269
iShares US Home Construction ETF
ITB
$2.37B
| $1.02M | ﹤0.01% |
10,600
+7,800
| +279% | +$788K |
|
2270
Invesco S&P 500 Revenue ETF
RWL
$10B
| $1.02M | ﹤0.01% |
8,900
-11,000
| -55% | -$1.24M |
|
2271
Southern Copper
SCCO
$158B
| $1.02M | ﹤0.01% |
7,319
-100,817
| -93% | -$13.2M |
|
2272
Metagenomi Therapeutics
MGX
$46.5M
| $1.02M | ﹤0.01% |
628,400
+461,400
| +276% | +$999K |
|
2273
MBIA
MBI
$262M
| $1.02M | ﹤0.01% |
141,792
+81,792
| +136% | +$591K |
|
2274
JPMorgan BetaBuilders US Equity ETF
BBUS
$9.28B
| $1.01M | ﹤0.01% |
8,200
-8,900
| -52% | -$1.09M |
|
2275
HNI Corp
HNI
$3.56B
| $1.01M | ﹤0.01% |
+23,946
| New | +$1.01M |
|
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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.