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 |
Broadcom
AVGO
|
+$38.5M |
| 2 |
SPDR Gold Trust
GLD
|
+$18.5M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
SPDR S&P MidCap 400 ETF Trust
MDY
|
+$12.9M |
| 5 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$8.72M |
Top Sells
| 1 |
Apple
AAPL
|
+$36.1M |
| 2 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 3 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 4 |
Walt Disney
DIS
|
+$14.5M |
| 5 |
Alibaba
BABA
|
+$13.3M |
Sector Composition
| 1 | Technology | 15.08% |
| 2 | Communication Services | 13.51% |
| 3 | Consumer Discretionary | 9.68% |
| 4 | Healthcare | 8.98% |
| 5 | Financials | 8.3% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
AVP
576
DELISTED
Avon Products, Inc.
AVP
| $124K | 0.01% |
25,880
+11,425
| +79% | +$54.7K |
|
577
Ovintiv
OVV
$10.8B
| $123K | 0.01% |
4,069
-4,194
| -51% | -$127K |
|
578
Synchrony
SYF
$28.2B
| $123K | 0.01% |
4,293
-39,543
| -90% | -$1.13M |
|
|
DANG
579
DELISTED
E-COMMERCE CHINA DANGDANG INC SPNSRD ADS REP COM CL A (CYM)
DANG
| $123K | 0.01% |
17,332
+13,677
| +374% | +$97.1K |
|
580
DNOW Inc
DNOW
$1.64B
| $121K | 0.01% |
+6,864
| New | +$121K |
|
|
ANFI
581
DELISTED
AMIRA NATURE FOODS LTD
ANFI
| $121K | 0.01% |
12,461
-11,384
| -48% | -$111K |
|
582
Cooper Companies
COO
$13.6B
| $120K | 0.01% |
3,132
-3,992
| -56% | -$153K |
|
|
MYCC
583
DELISTED
ClubCorp Holdings, Inc.
MYCC
| $120K | 0.01% |
8,563
+3,451
| +68% | +$48.4K |
|
584
CEVA Inc
CEVA
$565M
| $119K | 0.01% |
+5,319
| New | +$119K |
|
585
Anywhere Real Estate
HOUS
$751M
| $119K | 0.01% |
+3,321
| New | +$119K |
|
|
NBIS
586
Nebius Group N.V. Class A Ordinary Shares
NBIS
$21.7B
| $119K | 0.01% |
7,774
-7,001
| -47% | -$107K |
|
587
ProShares UltraShort MSCI Brazil Capped
BZQ
$5.4M
| $118K | 0.01% |
+146
| New | +$118K |
|
588
Monolithic Power Systems
MPWR
$40.4B
| $118K | 0.01% |
1,856
+444
| +31% | +$28.2K |
|
|
HEP
589
DELISTED
Holly Energy Partners, L.P.
HEP
| $118K | 0.01% |
+3,494
| New | +$118K |
|
590
Extreme Networks
EXTR
$2.99B
| $117K | 0.01% |
37,874
+29,452
| +350% | +$91K |
|
591
Innoviva
INVA
$1.22B
| $117K | 0.01% |
9,316
+7,992
| +604% | +$100K |
|
592
NiSource
NI
$19.3B
| $117K | 0.01% |
5,000
+714
| +17% | +$16.7K |
|
|
MRD
593
DELISTED
MEMORIAL RESOURCE DEV CORP COM STK (DE)
MRD
| $117K | 0.01% |
11,556
+9,215
| +394% | +$93.3K |
|
594
Plexus
PLXS
$3.78B
| $116K | 0.01% |
+2,936
| New | +$116K |
|
595
United Therapeutics
UTHR
$18.2B
| $116K | 0.01% |
+1,044
| New | +$116K |
|
596
Edwards Lifesciences
EW
$45.7B
| $115K | 0.01% |
3,930
-37,905
| -91% | -$1.11M |
|
597
Carpenter Technology
CRS
$12.1B
| $114K | 0.01% |
+3,332
| New | +$114K |
|
598
ProShares Trust UltraShort MSCI Emerging Markets
EEV
$3M
| $114K | 0.01% |
1,154
+758
| +191% | +$74.9K |
|
599
Huntington Bancshares
HBAN
$25.8B
| $114K | 0.01% |
11,967
+6,003
| +101% | +$57.2K |
|
600
Alaunos Therapeutics
TCRT
$5.23M
| $113K | 0.01% |
102
-258
| -72% | -$286K |
|