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 |
Alibaba
BABA
|
+$48.9M |
| 2 |
Boeing
BA
|
+$25.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
FedEx
FDX
|
+$13.6M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
+$62.1M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$36.4M |
| 3 |
Industrial Select Sector SPDR Fund
XLI
|
+$17.5M |
| 4 |
Netflix
NFLX
|
+$16.3M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$14.6M |
Sector Composition
| 1 | Consumer Discretionary | 16.74% |
| 2 | Technology | 16.32% |
| 3 | Healthcare | 12.17% |
| 4 | Industrials | 12.14% |
| 5 | Communication Services | 7.05% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
726
Compañía de Minas Buenaventura
BVN
$5.13B
| $153K | ﹤0.01% |
+10,127
| New | +$153K |
|
727
Outfront Media
OUT
$3.11B
| $153K | ﹤0.01% |
5,602
-36,710
| -87% | -$1M |
|
|
TPC
728
Tutor Perini Corporation
TPC
$3.32B
| $153K | ﹤0.01% |
10,736
-1,650
| -13% | -$23.5K |
|
729
Aegon
AEG
$12.1B
| $151K | ﹤0.01% |
39,811
+10,238
| +35% | +$38.8K |
|
730
Ambac
AMBC
$408M
| $151K | ﹤0.01% |
7,732
-14,639
| -65% | -$286K |
|
731
Teucrium Corn Fund
CORN
$48.9M
| $151K | ﹤0.01% |
9,588
+6,623
| +223% | +$104K |
|
732
ManpowerGroup
MAN
$1.8B
| $150K | ﹤0.01% |
1,784
+554
| +45% | +$46.6K |
|
733
Schwab US Broad Market ETF
SCHB
$36.9B
| $150K | ﹤0.01% |
12,750
+1,284
| +11% | +$15.1K |
|
734
NewMarket
NEU
$7.95B
| $149K | ﹤0.01% |
+316
| New | +$149K |
|
|
TRTX
735
TPG RE Finance Trust
TRTX
$750M
| $149K | ﹤0.01% |
+7,538
| New | +$149K |
|
736
ProShares Ultra Gold
UGL
$740M
| $149K | ﹤0.01% |
+12,772
| New | +$149K |
|
|
NSTG
737
DELISTED
NanoString Technologies, Inc.
NSTG
| $149K | ﹤0.01% |
6,920
+3,660
| +112% | +$78.8K |
|
|
EVOP
738
DELISTED
EVO Payments, Inc. Class A Common Stock
EVOP
| $149K | ﹤0.01% |
+5,316
| New | +$149K |
|
739
TG Therapeutics
TGTX
$5.11B
| $148K | ﹤0.01% |
+26,493
| New | +$148K |
|
740
Dentsply Sirona
XRAY
$2.77B
| $148K | ﹤0.01% |
+2,777
| New | +$148K |
|
|
TUFN
741
DELISTED
Tufin Software Technologies Ltd.
TUFN
| $148K | ﹤0.01% |
+8,997
| New | +$148K |
|
742
American Eagle Outfitters
AEO
$3.36B
| $147K | ﹤0.01% |
9,097
+3,496
| +62% | +$56.5K |
|
743
eHealth
EHTH
$124M
| $147K | ﹤0.01% |
+2,202
| New | +$147K |
|
744
Direxion Daily Financial Bear 3x Shares
FAZ
$109M
| $147K | ﹤0.01% |
+532
| New | +$147K |
|
|
OGI
745
Organigram Holdings
OGI
$225M
| $147K | ﹤0.01% |
10,688
+10,574
| +9,275% | +$145K |
|
746
TopBuild
BLD
$12B
| $146K | ﹤0.01% |
+1,518
| New | +$146K |
|
747
Renaissance IPO ETF
IPO
$187M
| $146K | ﹤0.01% |
5,183
+4,483
| +640% | +$126K |
|
748
iShares Europe ETF
IEV
$2.34B
| $145K | ﹤0.01% |
+3,370
| New | +$145K |
|
|
PEO
749
Adams Natural Resources Fund
PEO
$583M
| $145K | ﹤0.01% |
9,555
-4,148
| -30% | -$62.9K |
|
750
SSR Mining
SSRM
$4.55B
| $145K | ﹤0.01% |
+10,052
| New | +$145K |
|