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 | |
|---|---|---|---|---|---|---|
3401
Mangoceuticals
MGRX
$9.15M
| $47.1K | ﹤0.01% |
+31,000
| New | +$58.2K |
|
|
GRO
3402
Brazil Potash Corp
GRO
$132M
| $46.6K | ﹤0.01% |
+34,300
| New | +$70.4K |
|
3403
Milestone Scientific
MLSS
$48.9M
| $46.6K | ﹤0.01% |
73,197
-4,559
| -6% | -$4.18K |
|
|
CASI
3404
DELISTED
CASI Pharmaceuticals
CASI
| $46.3K | ﹤0.01% |
39,200
+300
| +0.8% | +$550 |
|
3405
Verrica Pharmaceuticals
VRCA
$83.5M
| $46.2K | ﹤0.01% |
+8,720
| New | +$46.9K |
|
|
ZSTK
3406
ZeroStack Corp
ZSTK
$19.3M
| $46.2K | ﹤0.01% |
2,041
-62
| -3% | -$1.49K |
|
3407
Nexalin Technology
NXL
$7.71M
| $45.8K | ﹤0.01% |
+46,344
| New | +$65.1K |
|
3408
Acurx Pharmaceuticals
ACXP
$6.36M
| $44.8K | ﹤0.01% |
4,389
+3,059
| +230% | +$24.6K |
|
3409
Enveric Biosciences
ENVB
$6.08M
| $44.8K | ﹤0.01% |
+3,084
| New | +$46.7K |
|
3410
Nephros
NEPH
$50.9M
| $44.6K | ﹤0.01% |
+10,900
| New | +$29.1K |
|
3411
Wetouch Technology
WETH
$14.8M
| $44.1K | ﹤0.01% |
46,400
+8,600
| +23% | +$8.98K |
|
3412
TOP Financial Group
TOP
$1.35B
| $43.6K | ﹤0.01% |
7,120
+1,140
| +19% | +$6.96K |
|
3413
Nuvation Bio
NUVB
$2.14B
| $43.1K | ﹤0.01% |
22,100
-422,000
| -95% | -$879K |
|
|
HYFT
3414
MindWalk Holdings
HYFT
$65.3M
| $42.9K | ﹤0.01% |
40,480
+11,080
| +38% | +$6.34K |
|
|
ORIO
3415
Orion Digital Corp
ORIO
$21.1M
| $42.2K | ﹤0.01% |
33,500
-22,379
| -40% | -$25.4K |
|
3416
SunCar Technology Group
SDA
$76.6M
| $42.1K | ﹤0.01% |
+16,500
| New | +$47.1K |
|
3417
enGene Therapeutics
ENGN
$113M
| $41.5K | ﹤0.01% |
+11,400
| New | +$42.8K |
|
|
BEDU
3418
DELISTED
Bright Scholar Education Holdings
BEDU
| $41.1K | ﹤0.01% |
23,225
-200
| -0.9% | -$338 |
|
|
GXAI
3419
Gaxos.ai
GXAI
$13.5M
| $39.4K | ﹤0.01% |
+27,963
| New | +$35.2K |
|
3420
BranchOut Food
BOF
$68.2M
| $38.1K | ﹤0.01% |
15,683
-19,917
| -56% | -$40.3K |
|
3421
Dolphin Entertainment
DLPN
$15.9M
| $38.1K | ﹤0.01% |
33,100
+2,100
| +7% | +$2.26K |
|
3422
Tigo Energy
TYGO
$96.7M
| $37.9K | ﹤0.01% |
+29,712
| New | +$28.9K |
|
|
UBX
3423
DELISTED
Unity Biotechnology
UBX
| $37.8K | ﹤0.01% |
98,311
+4,100
| +4% | +$3.51K |
|
3424
Tandy Leather Factory
TLF
$20.6M
| $37.4K | ﹤0.01% |
12,100
-5,500
| -31% | -$16.2K |
|
|
TRIB
3425
Trinity Biotech
TRIB
$8.01M
| $37K | ﹤0.01% |
1,899
-657
| -26% | -$13.2K |
|
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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.