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 | |
|---|---|---|---|---|---|---|
|
BRFS
526
DELISTED
BRF SA
BRFS
| $31.1M | 0.04% |
8,520,760
+441,290
| +5% | +$1.6M |
|
527
Warby Parker
WRBY
$3.13B
| $31.1M | 0.04% |
1,417,300
-320,200
| -18% | -$5.92M |
|
528
Insmed
INSM
$28.9B
| $31.1M | 0.04% |
+308,687
| New | +$23.6M |
|
529
Avery Dennison
AVY
$13.7B
| $31M | 0.04% |
176,700
+16,000
| +10% | +$2.8M |
|
530
State Street Financial Select Sector SPDR ETF
XLF
$59.1B
| $30.9M | 0.04% |
589,110
+352,400
| +149% | +$17.4M |
|
531
Vital Farms
VITL
$495M
| $30.7M | 0.04% |
797,754
+38,500
| +5% | +$1.3M |
|
532
Builders FirstSource
BLDR
$7.79B
| $30.6M | 0.04% |
+262,341
| New | +$30.3M |
|
533
State Street Industrial Select Sector SPDR ETF
XLI
$34.7B
| $30.5M | 0.04% |
+206,600
| New | +$28.2M |
|
534
Bio-Techne
TECH
$11.3B
| $30.4M | 0.04% |
590,700
+446,300
| +309% | +$22.4M |
|
535
Millicom
TIGO
$16.2B
| $30.4M | 0.04% |
810,634
+664,434
| +454% | +$22.8M |
|
536
Melco Resorts & Entertainment
MLCO
$2.14B
| $30.2M | 0.04% |
4,175,400
+1,336,100
| +47% | +$7.77M |
|
537
American Healthcare REIT
AHR
$10.1B
| $30.2M | 0.04% |
821,600
+322,500
| +65% | +$10.7M |
|
538
Arm
ARM
$290B
| $30.2M | 0.04% |
186,600
+167,100
| +857% | +$20.7M |
|
539
Chord Energy
CHRD
$7.53B
| $30.1M | 0.04% |
311,216
-244,100
| -44% | -$23.2M |
|
|
TGB
540
Trekor Metals
TGB
$3.2B
| $30.1M | 0.04% |
9,539,887
+2,662,217
| +39% | +$6.23M |
|
541
Gerdau
GGB
$9.48B
| $29.9M | 0.04% |
10,243,601
+1,857,577
| +22% | +$5.09M |
|
542
Eastman Chemical
EMN
$8.29B
| $29.8M | 0.04% |
398,540
-190,100
| -32% | -$14.9M |
|
543
Sabra Healthcare REIT
SBRA
$5.16B
| $29.7M | 0.04% |
1,612,120
+190,200
| +13% | +$3.38M |
|
544
VF Corp
VFC
$5.73B
| $29.7M | 0.04% |
2,528,200
+768,305
| +44% | +$9.52M |
|
545
Aecom
ACM
$7.85B
| $29.7M | 0.04% |
262,727
-83,650
| -24% | -$8.68M |
|
546
Coeur Mining
CDE
$19.3B
| $29.6M | 0.04% |
+3,338,289
| New | +$24.3M |
|
547
Barrett Business Services
BBSI
$756M
| $29.6M | 0.04% |
709,400
-17,200
| -2% | -$708K |
|
548
DHT Holdings
DHT
$3.01B
| $29.5M | 0.04% |
2,732,645
+82,600
| +3% | +$911K |
|
549
iRadimed
IRMD
$1.12B
| $29.4M | 0.04% |
491,812
-9,900
| -2% | -$543K |
|
550
Jefferies Financial Group
JEF
$12.6B
| $29.4M | 0.04% |
537,589
-140,848
| -21% | -$6.97M |
|
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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.