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 | |
|---|---|---|---|---|---|---|
751
Flotek Industries
FTK
$331M
| $70K | 0.01% |
1,600
+1,506
| +1,602% | +$65.9K |
|
752
NETSCOUT
NTCT
$1.8B
| $70K | 0.01% |
3,089
+750
| +32% | +$17K |
|
753
Textron
TXT
$14.4B
| $70K | 0.01% |
+1,940
| New | +$70K |
|
|
NETI
754
DELISTED
Eneti Inc.
NETI
| $70K | 0.01% |
+2,315
| New | +$70K |
|
|
WFM
755
DELISTED
Whole Foods Market Inc
WFM
| $70K | 0.01% |
+2,267
| New | +$70K |
|
756
LiveRamp
RAMP
$1.74B
| $69K | 0.01% |
+3,238
| New | +$69K |
|
757
Suburban Propane Partners
SPH
$1.2B
| $69K | 0.01% |
2,338
-1,321
| -36% | -$39K |
|
758
Ubiquiti
UI
$36.6B
| $69K | 0.01% |
+2,086
| New | +$69K |
|
|
ZNH
759
DELISTED
China Southern Airlines Company Limited
ZNH
| $69K | 0.01% |
2,219
+2,194
| +8,776% | +$68.2K |
|
|
TLGT
760
DELISTED
Teligent, Inc
TLGT
| $69K | 0.01% |
1,415
+752
| +113% | +$36.7K |
|
|
FNSR
761
DELISTED
Finisar Corp
FNSR
| $69K | 0.01% |
3,813
+853
| +29% | +$15.4K |
|
762
Camden Property Trust
CPT
$11.8B
| $68K | 0.01% |
+814
| New | +$68K |
|
763
Mercado Libre
MELI
$119B
| $68K | 0.01% |
+582
| New | +$68K |
|
|
TLP
764
DELISTED
Transmontaigne
TLP
| $68K | 0.01% |
1,873
+1,459
| +352% | +$53K |
|
|
XXIA
765
DELISTED
Ixia
XXIA
| $68K | 0.01% |
5,501
+2,090
| +61% | +$25.8K |
|
|
PERY
766
DELISTED
Perry Ellis International Inc
PERY
| $67K | 0.01% |
+3,642
| New | +$67K |
|
767
AdvisorShares Ranger Equity Bear ETF
HDGE
$49.2M
| $67K | 0.01% |
635
+513
| +420% | +$54.1K |
|
768
Insmed
INSM
$30.8B
| $67K | 0.01% |
5,336
-20,307
| -79% | -$255K |
|
769
Johnson Controls International
JCI
$70.5B
| $67K | 0.01% |
+1,648
| New | +$67K |
|
770
RingCentral
RNG
$2.77B
| $67K | 0.01% |
+4,266
| New | +$67K |
|
771
Vanguard Large-Cap ETF
VV
$45.3B
| $67K | 0.01% |
+718
| New | +$67K |
|
772
Cincinnati Financial
CINF
$23.8B
| $66K | 0.01% |
1,010
-27
| -3% | -$1.76K |
|
773
ResMed
RMD
$39.6B
| $66K | 0.01% |
+1,151
| New | +$66K |
|
|
DRE
774
DELISTED
Duke Realty Corp.
DRE
| $66K | 0.01% |
+2,951
| New | +$66K |
|
|
GPT
775
DELISTED
Gramercy Property Trust
GPT
| $66K | 0.01% |
+2,604
| New | +$66K |
|