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 |
Amazon
AMZN
|
$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
$68.7M |
| 3 |
AT&T
T
|
$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
$94.2M |
| 2 |
Citigroup
C
|
$62.3M |
| 3 |
JPMorgan Chase
JPM
|
$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
201
Sony
SONY
$165B
| $1.84M | ﹤0.01% |
+120,290
| New | +$1.84M |
|
202
ING
ING
$71B
| $1.82M | ﹤0.01% |
+149,152
| New | +$1.82M |
|
203
Molson Coors Class B
TAP
$9.96B
| $1.8M | ﹤0.01% |
35,001
+20,220
| +137% | +$1.04M |
|
204
Flex
FLEX
$20.8B
| $1.8M | ﹤0.01% |
111,282
+100,608
| +943% | +$1.63M |
|
205
Direxion Daily Energy Bull 2X Shares
ERX
$218M
| $1.79M | ﹤0.01% |
26,915
+15,107
| +128% | +$1.01M |
|
206
Invesco CurrencyShares British Pound Sterling Trust
FXB
$90.8M
| $1.77M | ﹤0.01% |
15,228
+8,873
| +140% | +$1.03M |
|
207
Sunoco
SUN
$6.95B
| $1.75M | ﹤0.01% |
40,643
+9,666
| +31% | +$416K |
|
208
iShares Core S&P 500 ETF
IVV
$664B
| $1.74M | ﹤0.01% |
+4,521
| New | +$1.74M |
|
|
BIG
209
DELISTED
Big Lots, Inc.
BIG
| $1.73M | ﹤0.01% |
+117,441
| New | +$1.73M |
|
210
Vornado Realty Trust
VNO
$7.93B
| $1.72M | ﹤0.01% |
+82,680
| New | +$1.72M |
|
211
Materials Select Sector SPDR Fund
XLB
$5.52B
| $1.71M | ﹤0.01% |
22,052
-46,621
| -68% | -$3.62M |
|
212
iShares MSCI Singapore ETF
EWS
$805M
| $1.71M | ﹤0.01% |
90,762
+78,521
| +641% | +$1.48M |
|
213
Hewlett Packard
HPE
$31B
| $1.7M | ﹤0.01% |
+106,521
| New | +$1.7M |
|
|
FTCH
214
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
| $1.69M | ﹤0.01% |
357,813
-18,978
| -5% | -$89.7K |
|
215
Nutanix
NTNX
$18.7B
| $1.68M | ﹤0.01% |
+64,641
| New | +$1.68M |
|
216
Innoviz Technologies
INVZ
$317M
| $1.68M | ﹤0.01% |
427,709
+281,692
| +193% | +$1.11M |
|
217
Robinhood
HOOD
$90B
| $1.66M | ﹤0.01% |
203,712
+124,391
| +157% | +$1.01M |
|
218
Realty Income
O
$54.2B
| $1.62M | ﹤0.01% |
25,612
-8,005
| -24% | -$508K |
|
219
Kellanova
K
$27.8B
| $1.62M | ﹤0.01% |
+24,275
| New | +$1.62M |
|
220
Globus Medical
GMED
$8.18B
| $1.61M | ﹤0.01% |
21,723
+15,415
| +244% | +$1.14M |
|
221
Barclays
BCS
$69.1B
| $1.6M | ﹤0.01% |
205,738
-21,005
| -9% | -$164K |
|
|
PBT
222
Permian Basin Royalty Trust
PBT
$838M
| $1.6M | ﹤0.01% |
63,474
-33,639
| -35% | -$847K |
|
223
Paylocity
PCTY
$9.62B
| $1.59M | ﹤0.01% |
8,209
+4,833
| +143% | +$938K |
|
224
Iron Mountain
IRM
$27.2B
| $1.58M | ﹤0.01% |
+31,638
| New | +$1.58M |
|
225
Direxion Daily Junior Gold Miners Index Bear 2X Shares
JDST
$46.5M
| $1.58M | ﹤0.01% |
19,737
-7,752
| -28% | -$619K |
|