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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1576
Immersion
IMMR
$221M
| $94K | ﹤0.01% |
16,501
-17,924
| -52% | -$102K |
|
1577
Leslie's
LESL
$62M
| $94K | ﹤0.01% |
4,000
-24,210
| -86% | -$569K |
|
1578
Liquidia Corp
LQDA
$2.24B
| $94K | ﹤0.01% |
19,406
+9,570
| +97% | +$46.4K |
|
1579
Riverview Bancorp
RVSB
$102M
| $94K | ﹤0.01% |
12,342
-9,011
| -42% | -$68.6K |
|
|
GATO
1580
DELISTED
Gatos Silver, Inc.
GATO
| $94K | ﹤0.01% |
9,106
+8,010
| +731% | +$82.7K |
|
|
VCRA
1581
DELISTED
VOCERA COMMUNICATIONS, INC.
VCRA
| $94K | ﹤0.01% |
+1,462
| New | +$94K |
|
1582
Allbirds
BIRD
$49.9M
| $93K | ﹤0.01% |
+311
| New | +$93K |
|
1583
Invesco S&P Global Water Index ETF
CGW
$1.01B
| $93K | ﹤0.01% |
+1,539
| New | +$93K |
|
1584
iShares US Telecommunications ETF
IYZ
$607M
| $93K | ﹤0.01% |
2,845
-12,826
| -82% | -$419K |
|
1585
Vanguard High Dividend Yield ETF
VYM
$65B
| $93K | ﹤0.01% |
831
-3,187
| -79% | -$357K |
|
|
AEL
1586
DELISTED
American Equity Investment Life Holding Company
AEL
| $93K | ﹤0.01% |
2,393
-884
| -27% | -$34.4K |
|
|
CLVS
1587
DELISTED
Clovis Oncology, Inc.
CLVS
| $93K | ﹤0.01% |
34,541
+32,151
| +1,345% | +$86.6K |
|
1588
Baxter International
BAX
$12.3B
| $92K | ﹤0.01% |
1,073
-1,881
| -64% | -$161K |
|
|
DOMA
1589
DELISTED
Doma Holdings, Inc.
DOMA
| $92K | ﹤0.01% |
+726
| New | +$92K |
|
1590
Idacorp
IDA
$6.77B
| $91K | ﹤0.01% |
+806
| New | +$91K |
|
1591
iShares MSCI Saudi Arabia ETF
KSA
$558M
| $91K | ﹤0.01% |
2,235
+475
| +27% | +$19.3K |
|
1592
Leap Therapeutics
LPTX
$12.4M
| $91K | ﹤0.01% |
+2,816
| New | +$91K |
|
1593
MasterCraft Boat Holdings
MCFT
$362M
| $91K | ﹤0.01% |
3,235
+3,068
| +1,837% | +$86.3K |
|
1594
MakeMyTrip
MMYT
$9.31B
| $91K | ﹤0.01% |
3,296
-6,309
| -66% | -$174K |
|
|
YELL
1595
DELISTED
Yellow Corporation Common Stock
YELL
| $91K | ﹤0.01% |
7,242
-40,016
| -85% | -$503K |
|
1596
Advantage Solutions
ADV
$619M
| $90K | ﹤0.01% |
11,247
-14,641
| -57% | -$117K |
|
1597
Allegion
ALLE
$15B
| $90K | ﹤0.01% |
+687
| New | +$90K |
|
|
AZUL
1598
DELISTED
Azul
AZUL
| $90K | ﹤0.01% |
6,821
-13,521
| -66% | -$178K |
|
1599
EverQuote
EVER
$896M
| $90K | ﹤0.01% |
5,801
+2,363
| +69% | +$36.7K |
|
1600
First Commonwealth Financial
FCF
$1.84B
| $90K | ﹤0.01% |
5,614
-599
| -10% | -$9.6K |
|