Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Apple
AAPL
|
$45.7M |
| 2 |
Walmart
WMT
|
$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$33.2M |
| 5 |
Citigroup
C
|
$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
$111M |
| 3 |
NVIDIA
NVDA
|
$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
$60.9M |
| 5 |
Procter & Gamble
PG
|
$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
426
Boeing
BA
$174B
| $679K | ﹤0.01% |
3,200
-282
| -8% | -$59.8K |
|
|
OSH
427
DELISTED
Oak Street Health, Inc.
OSH
| $679K | ﹤0.01% |
+17,562
| New | +$679K |
|
428
Lithia Motors
LAD
$8.74B
| $677K | ﹤0.01% |
2,961
+667
| +29% | +$153K |
|
429
Beam Therapeutics
BEAM
$2.11B
| $674K | ﹤0.01% |
22,018
+15,991
| +265% | +$490K |
|
430
Zscaler
ZS
$42.7B
| $673K | ﹤0.01% |
+5,767
| New | +$673K |
|
431
ACM Research
ACMR
$1.76B
| $672K | ﹤0.01% |
57,465
+50,003
| +670% | +$585K |
|
432
Bath & Body Works
BBWI
$6.06B
| $672K | ﹤0.01% |
18,393
+13,647
| +288% | +$499K |
|
433
Energy Fuels
UUUU
$2.67B
| $670K | ﹤0.01% |
120,150
+119,672
| +25,036% | +$667K |
|
434
Aldeyra Therapeutics
ALDX
$334M
| $668K | ﹤0.01% |
+67,325
| New | +$668K |
|
435
Tenet Healthcare
THC
$17.3B
| $664K | ﹤0.01% |
+11,176
| New | +$664K |
|
436
Vornado Realty Trust
VNO
$7.93B
| $662K | ﹤0.01% |
43,116
-39,564
| -48% | -$607K |
|
437
Philips
PHG
$26.5B
| $657K | ﹤0.01% |
40,318
+19,945
| +98% | +$325K |
|
438
W.W. Grainger
GWW
$47.5B
| $656K | ﹤0.01% |
953
-8,029
| -89% | -$5.53M |
|
439
Lincoln National
LNC
$7.98B
| $655K | ﹤0.01% |
29,163
-5,774
| -17% | -$130K |
|
440
Keurig Dr Pepper
KDP
$38.9B
| $654K | ﹤0.01% |
18,554
-14,720
| -44% | -$519K |
|
|
SAFE
441
Safehold
SAFE
$1.17B
| $654K | ﹤0.01% |
24,259
+22,308
| +1,143% | +$601K |
|
442
Seres Therapeutics
MCRB
$169M
| $652K | ﹤0.01% |
5,755
+5,508
| +2,230% | +$624K |
|
443
Landstar System
LSTR
$4.58B
| $644K | ﹤0.01% |
3,594
+3,268
| +1,002% | +$586K |
|
444
VanEck Steel ETF
SLX
$83M
| $644K | ﹤0.01% |
+10,111
| New | +$644K |
|
445
Huazhu Hotels Group
HTHT
$11.5B
| $643K | ﹤0.01% |
13,142
-18,799
| -59% | -$920K |
|
446
Magna International
MGA
$12.9B
| $641K | ﹤0.01% |
11,972
+9,851
| +464% | +$527K |
|
447
AES
AES
$9.21B
| $637K | ﹤0.01% |
26,477
+25,439
| +2,451% | +$612K |
|
448
Coca-Cola Femsa
KOF
$17.5B
| $630K | ﹤0.01% |
7,835
+5,745
| +275% | +$462K |
|
449
American Water Works
AWK
$28B
| $628K | ﹤0.01% |
4,292
-12,728
| -75% | -$1.86M |
|
450
Paychex
PAYX
$48.7B
| $628K | ﹤0.01% |
5,487
+2,931
| +115% | +$335K |
|