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
|
+$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 4 |
iShares Silver Trust
SLV
|
+$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
+$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
+$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
+$42.8M |
| 3 |
Verizon
VZ
|
+$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
+$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
+$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.23% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
601
Urban Outfitters
URBN
$6.55B
| $722K | ﹤0.01% |
28,783
-3,296
| -10% | -$82.7K |
|
602
Guess, Inc.
GES
$880M
| $721K | ﹤0.01% |
33,028
-221,922
| -87% | -$4.84M |
|
|
BINI
603
Bollinger Innovations, Inc. Common Stock
BINI
$3.68M
| – | – |
0
| – | -$37K |
|
604
ProShares UltraShort S&P500
SDS
$478M
| $720K | ﹤0.01% |
+19,240
| New | +$720K |
|
|
ME
605
DELISTED
23andMe Holding Co. Class A Common Stock
ME
| $717K | ﹤0.01% |
9,368
+4,168
| +80% | +$319K |
|
606
Valvoline
VVV
$5.08B
| $713K | ﹤0.01% |
22,601
+10,829
| +92% | +$342K |
|
607
Toast
TOST
$23.8B
| $710K | ﹤0.01% |
+32,713
| New | +$710K |
|
608
Tidewater
TDW
$2.89B
| $704K | ﹤0.01% |
+32,400
| New | +$704K |
|
609
Invesco S&P SmallCap 600 Pure Value ETF
RZV
$224M
| $702K | ﹤0.01% |
7,260
-712
| -9% | -$68.8K |
|
610
Alto Ingredients
ALTO
$88.2M
| $700K | ﹤0.01% |
102,761
-146,680
| -59% | -$999K |
|
611
Lantheus
LNTH
$3.65B
| $700K | ﹤0.01% |
12,658
+3,920
| +45% | +$217K |
|
|
CHNG
612
DELISTED
Change Healthcare Inc. Common Stock
CHNG
| $700K | ﹤0.01% |
32,129
+4,583
| +17% | +$99.9K |
|
613
Permian Resources
PR
$9.66B
| $697K | ﹤0.01% |
86,403
-63,288
| -42% | -$511K |
|
614
Blue Owl Capital
OWL
$11.7B
| $696K | ﹤0.01% |
+54,931
| New | +$696K |
|
|
JOYY
615
JOYY Inc. American Depositary Shares
JOYY
$3.27B
| $696K | ﹤0.01% |
18,965
-8,877
| -32% | -$326K |
|
616
American Water Works
AWK
$27.3B
| $691K | ﹤0.01% |
4,180
-2,196
| -34% | -$363K |
|
617
Enterprise Products Partners
EPD
$68.1B
| $687K | ﹤0.01% |
26,656
-48,025
| -64% | -$1.24M |
|
618
Metallus
MTUS
$704M
| $684K | ﹤0.01% |
31,280
+30,260
| +2,967% | +$662K |
|
|
WWE
619
DELISTED
World Wrestling Entertainment
WWE
| $682K | ﹤0.01% |
10,924
+8,647
| +380% | +$540K |
|
620
Cantaloupe
CTLP
$794M
| $681K | ﹤0.01% |
100,595
+58,039
| +136% | +$393K |
|
|
ONEM
621
DELISTED
1Life Healthcare, Inc. Common Stock
ONEM
| $678K | ﹤0.01% |
61,249
+31,629
| +107% | +$350K |
|
622
Global X MSCI China Consumer Discretionary ETF
CHIQ
$247M
| $677K | ﹤0.01% |
34,197
+32,742
| +2,250% | +$648K |
|
623
Andersons Inc
ANDE
$1.4B
| $676K | ﹤0.01% |
13,456
+12,977
| +2,709% | +$652K |
|
|
SJT
624
San Juan Basin Royalty Trust
SJT
$271M
| $673K | ﹤0.01% |
76,838
+70,650
| +1,142% | +$619K |
|
625
Kulicke & Soffa
KLIC
$1.99B
| $671K | ﹤0.01% |
11,985
-26,360
| -69% | -$1.48M |
|