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 | |
|---|---|---|---|---|---|---|
426
Huntington Bancshares
HBAN
$25.8B
| $437K | ﹤0.01% |
30,633
-1,369
| -4% | -$19.5K |
|
427
British American Tobacco
BTI
$123B
| $435K | ﹤0.01% |
11,809
-3,520
| -23% | -$130K |
|
428
Catalyst Pharmaceutical
CPRX
$2.42B
| $435K | ﹤0.01% |
81,952
+68,798
| +523% | +$365K |
|
|
AMRS
429
DELISTED
Amyris Inc.
AMRS
| $435K | ﹤0.01% |
91,535
+32,354
| +55% | +$154K |
|
430
Helmerich & Payne
HP
$2.07B
| $433K | ﹤0.01% |
10,818
+10,346
| +2,192% | +$414K |
|
431
Box
BOX
$4.73B
| $430K | ﹤0.01% |
25,993
+12,246
| +89% | +$203K |
|
432
AutoZone
AZO
$71B
| $429K | ﹤0.01% |
396
-1,580
| -80% | -$1.71M |
|
|
CSII
433
DELISTED
Cardiovascular Systems, Inc.
CSII
| $427K | ﹤0.01% |
+8,987
| New | +$427K |
|
434
Coherent
COHR
$16.2B
| $424K | ﹤0.01% |
+12,062
| New | +$424K |
|
|
EBIX
435
DELISTED
Ebix Inc
EBIX
| $421K | ﹤0.01% |
10,020
+1,375
| +16% | +$57.8K |
|
436
Polaris
PII
$3.26B
| $420K | ﹤0.01% |
+4,774
| New | +$420K |
|
|
SIOX
437
DELISTED
Sio Gene Therapies Inc. Common Stock
SIOX
| $420K | ﹤0.01% |
+65,047
| New | +$420K |
|
438
Meritage Homes
MTH
$5.57B
| $418K | ﹤0.01% |
11,888
+10,824
| +1,017% | +$381K |
|
439
Lands' End
LE
$479M
| $416K | ﹤0.01% |
36,738
+35,920
| +4,391% | +$407K |
|
440
Wolfspeed
WOLF
$236M
| $416K | ﹤0.01% |
8,500
+454
| +6% | +$22.2K |
|
441
State Street
STT
$31.7B
| $415K | ﹤0.01% |
+7,023
| New | +$415K |
|
442
New York Times
NYT
$9.33B
| $414K | ﹤0.01% |
+14,563
| New | +$414K |
|
443
Unilever
UL
$154B
| $411K | ﹤0.01% |
6,841
-6,431
| -48% | -$386K |
|
|
SNP
444
DELISTED
CHINA PETROLEUM & CHEMICAL CORPORATION ADS (REP 100 ORDINARY H SHARES)
SNP
| $409K | ﹤0.01% |
6,983
+2,496
| +56% | +$146K |
|
445
iShares Mortgage Real Estate ETF
REM
$616M
| $407K | ﹤0.01% |
9,669
+5,432
| +128% | +$229K |
|
446
Direxion Daily Small Cap Bear 3x Shares
TZA
$294M
| $407K | ﹤0.01% |
+1,084
| New | +$407K |
|
447
Huntsman Corp
HUN
$1.89B
| $404K | ﹤0.01% |
+17,411
| New | +$404K |
|
448
Yelp
YELP
$1.96B
| $401K | ﹤0.01% |
11,557
-54,306
| -82% | -$1.88M |
|
449
Baidu
BIDU
$36.8B
| $396K | ﹤0.01% |
3,854
-45,736
| -92% | -$4.7M |
|
450
Aptiv
APTV
$17.6B
| $395K | ﹤0.01% |
4,528
-3,655
| -45% | -$319K |
|