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 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
626
Yum China
YUMC
$15.9B
| $559K | ﹤0.01% |
+14,055
| New | +$559K |
|
627
KKR & Co
KKR
$133B
| $558K | ﹤0.01% |
5,548
-1,628
| -23% | -$164K |
|
628
CBRE Group
CBRE
$48.8B
| $556K | ﹤0.01% |
+5,720
| New | +$556K |
|
629
Ferguson
FERG
$46B
| $555K | ﹤0.01% |
2,544
-11,908
| -82% | -$2.6M |
|
630
Alerian MLP ETF
AMLP
$10.3B
| $553K | ﹤0.01% |
11,655
-18,767
| -62% | -$890K |
|
631
Kodak
KODK
$500M
| $553K | ﹤0.01% |
111,727
+31,500
| +39% | +$156K |
|
632
Synaptics
SYNA
$2.8B
| $553K | ﹤0.01% |
+5,677
| New | +$553K |
|
633
East-West Bancorp
EWBC
$15B
| $550K | ﹤0.01% |
6,959
-40,355
| -85% | -$3.19M |
|
634
First Majestic Silver
AG
$5.19B
| $547K | ﹤0.01% |
93,031
-186,039
| -67% | -$1.09M |
|
635
Universal Technical Institute
UTI
$1.54B
| $546K | ﹤0.01% |
34,296
+27,752
| +424% | +$442K |
|
636
Aurinia Pharmaceuticals
AUPH
$1.7B
| $543K | ﹤0.01% |
108,528
-96,007
| -47% | -$480K |
|
|
MDC
637
DELISTED
M.D.C. Holdings, Inc.
MDC
| $542K | ﹤0.01% |
8,631
+2,800
| +48% | +$176K |
|
638
Ameren
AEE
$26.8B
| $541K | ﹤0.01% |
7,321
-7,427
| -50% | -$549K |
|
639
Schrodinger
SDGR
$1.43B
| $537K | ﹤0.01% |
19,922
+14,246
| +251% | +$384K |
|
640
SIGA Technologies
SIGA
$629M
| $537K | ﹤0.01% |
62,756
-34,239
| -35% | -$293K |
|
|
ONC
641
BeOne Medicines Ltd
ONC
$36.8B
| $537K | ﹤0.01% |
+3,439
| New | +$537K |
|
642
UGI
UGI
$7.07B
| $536K | ﹤0.01% |
21,843
-91,528
| -81% | -$2.25M |
|
643
Logitech
LOGI
$16.5B
| $535K | ﹤0.01% |
5,988
+5,925
| +9,405% | +$529K |
|
644
Direxion Daily Small Cap Bear 3x Shares
TZA
$278M
| $535K | ﹤0.01% |
31,901
-67,087
| -68% | -$1.13M |
|
645
GraniteShares 2x Long COIN Daily ETF
CONL
$924M
| $533K | ﹤0.01% |
+6,956
| New | +$533K |
|
646
Harmonic Inc
HLIT
$1.16B
| $533K | ﹤0.01% |
+39,662
| New | +$533K |
|
647
Beyond Meat
BYND
$217M
| $530K | ﹤0.01% |
+64,039
| New | +$530K |
|
648
Shoals Technologies Group
SHLS
$1.22B
| $530K | ﹤0.01% |
47,471
-27,404
| -37% | -$306K |
|
649
Vivid Seats
SEAT
$104M
| $526K | ﹤0.01% |
+4,395
| New | +$526K |
|
650
Credo Technology Group
CRDO
$29.3B
| $524K | ﹤0.01% |
24,733
+20,127
| +437% | +$426K |
|