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 | |
|---|---|---|---|---|---|---|
|
CERN
151
DELISTED
Cerner Corp
CERN
| $1.44M | ﹤0.01% |
+21,170
| New | +$1.44M |
|
152
TD Synnex
SNX
$12.2B
| $1.44M | ﹤0.01% |
12,732
+10,363
| +437% | +$1.17M |
|
153
DaVita
DVA
$9.72B
| $1.44M | ﹤0.01% |
25,156
+5,853
| +30% | +$334K |
|
154
Pinduoduo
PDD
$177B
| $1.43M | ﹤0.01% |
44,447
-87,469
| -66% | -$2.82M |
|
155
Agnico Eagle Mines
AEM
$74.7B
| $1.42M | ﹤0.01% |
+26,544
| New | +$1.42M |
|
156
Check Point Software Technologies
CHKP
$20.6B
| $1.4M | ﹤0.01% |
12,828
+10,579
| +470% | +$1.16M |
|
157
CrowdStrike
CRWD
$104B
| $1.4M | ﹤0.01% |
24,090
+5,726
| +31% | +$334K |
|
|
ACIA
158
DELISTED
Acacia Communications, Inc. Common Stock
ACIA
| $1.4M | ﹤0.01% |
+21,355
| New | +$1.4M |
|
159
Medical Properties Trust
MPW
$2.66B
| $1.39M | ﹤0.01% |
71,296
+37,545
| +111% | +$734K |
|
160
Nexstar Media Group
NXST
$6.24B
| $1.39M | ﹤0.01% |
13,616
+9,456
| +227% | +$967K |
|
161
Aecom
ACM
$16.4B
| $1.38M | ﹤0.01% |
+36,866
| New | +$1.38M |
|
162
International Flavors & Fragrances
IFF
$16.8B
| $1.38M | ﹤0.01% |
+11,278
| New | +$1.38M |
|
163
VanEck Oil Services ETF
OIH
$862M
| $1.38M | ﹤0.01% |
+117,063
| New | +$1.38M |
|
164
PVH
PVH
$4.1B
| $1.38M | ﹤0.01% |
15,590
-9,293
| -37% | -$820K |
|
|
I
165
DELISTED
INTELSAT S. A.
I
| $1.38M | ﹤0.01% |
60,325
+36,258
| +151% | +$826K |
|
166
iShares Biotechnology ETF
IBB
$5.68B
| $1.37M | ﹤0.01% |
+13,721
| New | +$1.37M |
|
167
Newell Brands
NWL
$2.64B
| $1.35M | ﹤0.01% |
+72,117
| New | +$1.35M |
|
168
Lincoln National
LNC
$8.21B
| $1.34M | ﹤0.01% |
22,278
+22,077
| +10,984% | +$1.33M |
|
169
Regeneron Pharmaceuticals
REGN
$59.8B
| $1.31M | ﹤0.01% |
+4,730
| New | +$1.31M |
|
170
VanEck Junior Gold Miners ETF
GDXJ
$6.91B
| $1.31M | ﹤0.01% |
+36,105
| New | +$1.31M |
|
171
iShares MSCI Japan ETF
EWJ
$15.2B
| $1.31M | ﹤0.01% |
23,002
+16,767
| +269% | +$951K |
|
172
Galicia Financial Group
GGAL
$6.17B
| $1.3M | ﹤0.01% |
+100,203
| New | +$1.3M |
|
173
Fluor
FLR
$6.93B
| $1.3M | ﹤0.01% |
67,957
+35,670
| +110% | +$682K |
|
174
Capri Holdings
CPRI
$2.51B
| $1.29M | ﹤0.01% |
38,875
-6,541
| -14% | -$217K |
|
175
Snap-on
SNA
$16.8B
| $1.29M | ﹤0.01% |
+8,234
| New | +$1.29M |
|