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 |
Apple
AAPL
|
+$800M |
| 2 |
NVIDIA
NVDA
|
+$304M |
| 3 |
Broadcom
AVGO
|
+$261M |
| 4 |
Linde
LIN
|
+$237M |
| 5 |
JPMorgan Chase
JPM
|
+$208M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Costco
COST
|
+$656M |
| 2 |
Netflix
NFLX
|
+$632M |
| 3 |
Tesla
TSLA
|
+$474M |
| 4 |
Procter & Gamble
PG
|
+$428M |
| 5 |
Micron Technology
MU
|
+$332M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 22.04% |
| 2 | Healthcare | 15.35% |
| 3 | Industrials | 11.13% |
| 4 | Consumer Discretionary | 10.88% |
| 5 | Financials | 10.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
FORA
3051
DELISTED
Forian
FORA
| $85.5K | ﹤0.01% |
41,300
-14,700
| -26% | -$30.7K |
|
|
YI
3052
111 Inc
YI
$34.5M
| $84.9K | ﹤0.01% |
13,014
+300
| +2% | +$1.92K |
|
3053
Smith Micro Software
SMSI
$16.8M
| $83.9K | ﹤0.01% |
23,329
+1,180
| +5% | +$3.59K |
|
|
YQ
3054
17 Education & Technology Group
YQ
$23.7M
| $83.8K | ﹤0.01% |
46,287
-7,243
| -14% | -$22.7K |
|
3055
Hongli Group Inc. Class A Ordinary Shares
HLP
$94.2M
| $82.7K | ﹤0.01% |
93,925
+24,525
| +35% | +$23.6K |
|
3056
BioAtla
BCAB
$5.59M
| $82.2K | ﹤0.01% |
10,210
-3,934
| -28% | -$46K |
|
3057
Achieve Life Sciences
ACHV
$674M
| $82.2K | ﹤0.01% |
27,952
-124,508
| -82% | -$553K |
|
3058
PolyPid
PYPD
$90.5M
| $81.5K | ﹤0.01% |
+18,596
| New | +$82.3K |
|
3059
Ebang International Holdings
EBON
$13.2M
| $81.2K | ﹤0.01% |
47,213
-2,300
| -5% | -$6.29K |
|
|
TDTH
3060
Trident Digital Tech Holdings Ltd Class B Ordinary Shares
TDTH
$2.47B
| $81.1K | ﹤0.01% |
14,133
+11,950
| +547% | +$102K |
|
3061
Marti Technologies
MRT
$154M
| $80.4K | ﹤0.01% |
40,200
-32,900
| -45% | -$68.8K |
|
|
ALAR
3062
Alarum Technologies
ALAR
$13.2M
| $79.9K | ﹤0.01% |
13,400
-4,100
| -23% | -$30.7K |
|
|
SGRP
3063
DELISTED
SPAR Group
SGRP
| $78.4K | ﹤0.01% |
125,308
-5,393
| -4% | -$4.26K |
|
3064
Fathom Holdings
FTHM
$23.4M
| $78.4K | ﹤0.01% |
147,807
+62,307
| +73% | +$62.4K |
|
3065
SemiLEDS
LEDS
$18.4M
| $77.1K | ﹤0.01% |
61,700
+3,000
| +5% | +$4.8K |
|
3066
Eledon Pharmaceuticals
ELDN
$289M
| $75.8K | ﹤0.01% |
24,600
-152,390
| -86% | -$359K |
|
3067
ReWalk Robotics
LFWD
$22M
| $75.8K | ﹤0.01% |
11,427
+618
| +6% | +$4.27K |
|
3068
BGSF Inc
BGSF
$58.5M
| $75.7K | ﹤0.01% |
11,700
+600
| +5% | +$3.51K |
|
3069
Hydrofarm Holdings
HYFM
$7.91M
| $73.6K | ﹤0.01% |
72,163
-300
| -0.4% | -$424 |
|
3070
Wetouch Technology
WETH
$13M
| $72.6K | ﹤0.01% |
56,500
+300
| +0.5% | +$481 |
|
3071
J-Long Group
JL
$17.9M
| $72.3K | ﹤0.01% |
+10,425
| New | +$49.8K |
|
3072
KALA BIO
KALA
$16.8M
| $72.3K | ﹤0.01% |
8,350
+7,532
| +921% | +$159K |
|
3073
American Shared Hospital Services
AMS
$10.1M
| $71.3K | ﹤0.01% |
49,200
-200
| -0.4% | -$419 |
|
3074
Pasithea Therapeutics
KTTA
$16.9M
| $69.3K | ﹤0.01% |
+93,399
| New | +$78.1K |
|
3075
CalciMedica
CALC
$19.9M
| $69.2K | ﹤0.01% |
128,075
+39,775
| +45% | +$80.7K |
|
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Jim Simons's Q1 2026 Portfolio in Review
As of Q1 2026, Jim Simons held 3,809 positions worth $63.9B, down 0.82% from $64.5B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons's Q1 2026 filing shows 624 new, 1,320 increased, 1,262 reduced and 596 closed positions. Its largest new stake was Apple: 3,075,638 shares worth $781M. The largest sale was Costco, an estimated $656M.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 21% a quarter earlier, followed by Healthcare and Industrials.
- Jim Simons's largest Q1 2026 buy was Apple: 3,075,638 shares worth $781M.
- Jim Simons added most to NVIDIA in Q1 2026, an estimated $304M increase.
- Jim Simons's biggest Q1 2026 reduction was Costco, cutting an estimated $656M.
- Jim Simons fully exited Procter & Gamble in Q1 2026, selling an estimated $428M.
- Jim Simons's ten largest holdings make up 11% of its $63.9B portfolio in Q1 2026.
- Jim Simons opened 624 new positions and closed 596 in Q1 2026.
- Jim Simons's portfolio value fell 0.82% quarter-over-quarter to $63.9B.
Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.