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 |
NVIDIA
NVDA
|
+$798M |
| 2 |
Netflix
NFLX
|
+$608M |
| 3 |
UnitedHealth
UNH
|
+$517M |
| 4 |
Apple
AAPL
|
+$461M |
| 5 |
GE Vernova
GEV
|
+$296M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$527M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$372M |
| 3 |
Meta Platforms (Facebook)
META
|
+$362M |
| 4 |
Advanced Micro Devices
AMD
|
+$328M |
| 5 |
Palantir
PLTR
|
+$327M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 19.57% |
| 2 | Healthcare | 15.8% |
| 3 | Consumer Discretionary | 12.38% |
| 4 | Financials | 11.53% |
| 5 | Industrials | 8.92% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
ABX
2226
Abacus Global Management
ABX
$833M
| $1.68M | ﹤0.01% |
327,100
+159,000
| +95% | +$1.17M |
|
2227
Avantis International Equity ETF
AVDE
$18.8B
| $1.68M | ﹤0.01% |
22,700
+8,800
| +63% | +$615K |
|
2228
Telesat
TSAT
$934M
| $1.67M | ﹤0.01% |
68,500
+55,900
| +444% | +$981K |
|
2229
Concrete Pumping Holdings
BBCP
$479M
| $1.67M | ﹤0.01% |
271,600
-67,200
| -20% | -$426K |
|
2230
3D Systems Corp
DDD
$601M
| $1.67M | ﹤0.01% |
1,083,905
+919,255
| +558% | +$1.66M |
|
2231
Embotelladora Andina Series A
AKO.A
$3.76B
| $1.66M | ﹤0.01% |
84,000
-1,500
| -2% | -$28.6K |
|
|
OMCC
2232
DELISTED
Old Market Capital Corp
OMCC
| $1.66M | ﹤0.01% |
302,251
-11,000
| -4% | -$62K |
|
2233
Cumberland Pharmaceuticals
CPIX
$118M
| $1.66M | ﹤0.01% |
494,963
-8,400
| -2% | -$39.8K |
|
2234
Alto Ingredients
ALTO
$326M
| $1.66M | ﹤0.01% |
1,440,600
+30,800
| +2% | +$29.5K |
|
2235
Chubb
CB
$133B
| $1.65M | ﹤0.01% |
+5,699
| New | +$1.64M |
|
2236
Ring Energy
REI
$349M
| $1.65M | ﹤0.01% |
2,079,379
+1,538,979
| +285% | +$1.3M |
|
2237
iShares ESG Aware MSCI USA ETF
ESGU
$18.5B
| $1.65M | ﹤0.01% |
+12,200
| New | +$1.52M |
|
|
HTO
2238
H2O America
HTO
$2.65B
| $1.65M | ﹤0.01% |
31,700
-15,700
| -33% | -$835K |
|
2239
China Automotive Systems
CAAS
$142M
| $1.64M | ﹤0.01% |
402,794
-2,100
| -0.5% | -$8.46K |
|
|
OPRA
2240
Opera Ltd
OPRA
$1.8B
| $1.64M | ﹤0.01% |
86,800
+42,300
| +95% | +$725K |
|
2241
CoreCivic
CXW
$3.32B
| $1.64M | ﹤0.01% |
77,703
-40,800
| -34% | -$880K |
|
2242
MIND Technology
MIND
$42.6M
| $1.64M | ﹤0.01% |
193,840
-91,200
| -32% | -$582K |
|
|
COE
2243
51Talk Online Education Group
COE
$121M
| $1.64M | ﹤0.01% |
49,575
+4,400
| +10% | +$95.2K |
|
2244
Civista Bancshares
CIVB
$595M
| $1.63M | ﹤0.01% |
70,165
+600
| +0.9% | +$13K |
|
2245
Larimar Therapeutics
LRMR
$444M
| $1.62M | ﹤0.01% |
561,742
-413,229
| -42% | -$957K |
|
2246
M-tron Industries
MPTI
$365M
| $1.62M | ﹤0.01% |
38,605
+6,000
| +18% | +$289K |
|
2247
ECARX Holdings
ECX
$413M
| $1.62M | ﹤0.01% |
788,900
+83,724
| +12% | +$121K |
|
2248
iShares MSCI Brazil ETF
EWZ
$8.55B
| $1.61M | ﹤0.01% |
55,900
-92,500
| -62% | -$2.5M |
|
2249
iShares Future Exponential Technologies ETF
XT
$4.01B
| $1.61M | ﹤0.01% |
24,700
-36,400
| -60% | -$2.17M |
|
2250
MacroGenics
MGNX
$259M
| $1.61M | ﹤0.01% |
1,326,494
+174,224
| +15% | +$253K |
|
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Jim Simons's Q2 2025 Portfolio in Review
As of Q2 2025, Jim Simons held 4,018 positions worth $75.2B, up 14% from $66.1B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons's Q2 2025 filing shows 612 new, 1,577 increased, 1,314 reduced and 496 closed positions. Its largest new stake was UnitedHealth: 1,352,129 shares worth $422M. The largest sale was Broadcom, an estimated $527M.
By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 17% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Jim Simons's largest Q2 2025 buy was UnitedHealth: 1,352,129 shares worth $422M.
- Jim Simons added most to NVIDIA in Q2 2025, an estimated $798M increase.
- Jim Simons's biggest Q2 2025 reduction was Broadcom, cutting an estimated $527M.
- Jim Simons fully exited Advanced Micro Devices in Q2 2025, selling an estimated $328M.
- Jim Simons's ten largest holdings make up 12% of its $75.2B portfolio in Q2 2025.
- Jim Simons opened 612 new positions and closed 496 in Q2 2025.
- Jim Simons's portfolio value rose 14% quarter-over-quarter to $75.2B.
Based on Renaissance Technologies's 13F filing for Q2 2025, filed 13 Aug 2025.