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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
AZPN
476
DELISTED
ASPEN TECHNOLOGY INC
AZPN
| $1.19M | ﹤0.01% |
+7,805
| New | +$1.19M |
|
477
QuidelOrtho
QDEL
$1.93B
| $1.18M | ﹤0.01% |
8,778
-2,120
| -19% | -$286K |
|
478
Oneok
OKE
$45.2B
| $1.18M | ﹤0.01% |
20,003
-10,032
| -33% | -$589K |
|
479
Pool Corp
POOL
$12.5B
| $1.18M | ﹤0.01% |
2,077
-2,949
| -59% | -$1.67M |
|
480
Victoria's Secret
VSCO
$2.06B
| $1.17M | ﹤0.01% |
+21,061
| New | +$1.17M |
|
481
Tractor Supply
TSCO
$31.3B
| $1.16M | ﹤0.01% |
24,350
-52,570
| -68% | -$2.51M |
|
482
Calumet Specialty Products
CLMT
$1.5B
| $1.16M | ﹤0.01% |
87,851
-34,350
| -28% | -$453K |
|
|
SAVE
483
DELISTED
Spirit Airlines, Inc.
SAVE
| $1.16M | ﹤0.01% |
52,967
-7,175
| -12% | -$157K |
|
484
Premier
PINC
$2.24B
| $1.16M | ﹤0.01% |
+28,088
| New | +$1.16M |
|
485
Invesco DB Agriculture Fund
DBA
$802M
| $1.15M | ﹤0.01% |
58,313
+20,293
| +53% | +$401K |
|
486
Ally Financial
ALLY
$12.7B
| $1.15M | ﹤0.01% |
24,119
-24,636
| -51% | -$1.17M |
|
487
Paycom
PAYC
$12.6B
| $1.15M | ﹤0.01% |
+2,767
| New | +$1.15M |
|
488
Consolidated Edison
ED
$35B
| $1.14M | ﹤0.01% |
13,413
+7,521
| +128% | +$641K |
|
489
GoPro
GPRO
$264M
| $1.14M | ﹤0.01% |
+110,763
| New | +$1.14M |
|
490
Playboy, Inc. Common Stock
PLBY
$182M
| $1.13M | ﹤0.01% |
42,550
-9,399
| -18% | -$250K |
|
491
Direxion Daily Junior Gold Miners Index Bull 2X Shares
JNUG
$468M
| $1.13M | ﹤0.01% |
17,619
+10,695
| +154% | +$685K |
|
492
Direxion Daily FTSE China Bull 3X Shares
YINN
$1.15B
| $1.13M | ﹤0.01% |
6,754
+428
| +7% | +$71.3K |
|
493
iShares Gold Trust
IAU
$53.3B
| $1.11M | ﹤0.01% |
32,027
+4,808
| +18% | +$167K |
|
494
iRhythm Technologies
IRTC
$5.99B
| $1.11M | ﹤0.01% |
9,446
-12,864
| -58% | -$1.51M |
|
495
Dynavax Technologies
DVAX
$1.14B
| $1.11M | ﹤0.01% |
78,775
-7,082
| -8% | -$99.6K |
|
|
ETWO
496
DELISTED
E2open Parent Holdings
ETWO
| $1.11M | ﹤0.01% |
98,333
+65,879
| +203% | +$742K |
|
|
SAIL
497
DELISTED
SailPoint Technologies Holdings, Inc. Common Stock
SAIL
| $1.11M | ﹤0.01% |
22,916
+21,273
| +1,295% | +$1.03M |
|
498
EQT Corp
EQT
$31.4B
| $1.11M | ﹤0.01% |
50,720
+48,275
| +1,974% | +$1.05M |
|
499
Boston Scientific
BSX
$160B
| $1.11M | ﹤0.01% |
26,023
-48,983
| -65% | -$2.08M |
|
500
IMAX
IMAX
$1.67B
| $1.1M | ﹤0.01% |
61,892
+48,805
| +373% | +$871K |
|