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 |
Apple
AAPL
|
+$32.1M |
| 2 |
Bausch Health
BHC
|
+$18.4M |
| 3 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 4 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 5 |
Amazon
AMZN
|
+$13M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$13.7M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$12.1M |
| 4 |
Netflix
NFLX
|
+$10.7M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.7M |
Sector Composition
| 1 | Consumer Discretionary | 17.29% |
| 2 | Healthcare | 13.74% |
| 3 | Technology | 12.76% |
| 4 | Communication Services | 12.12% |
| 5 | Industrials | 10.49% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
DNR
651
DELISTED
Denbury Resources, Inc.
DNR
| $113K | 0.01% |
56,174
+41,340
| +279% | +$83.2K |
|
|
EVHC
652
DELISTED
Envision Healthcare Holdings Inc
EVHC
| $113K | 0.01% |
+1,459
| New | +$113K |
|
653
ASGN Inc
ASGN
$2.17B
| $112K | 0.01% |
2,497
+2,162
| +645% | +$97K |
|
654
Sangamo Therapeutics
SGMO
$155M
| $112K | 0.01% |
12,368
+3,744
| +43% | +$33.9K |
|
|
TFCFA
655
DELISTED
Twenty-First Century Fox, Inc. Class A
TFCFA
| $112K | 0.01% |
4,142
-38,667
| -90% | -$1.05M |
|
656
PRA Group
PRAA
$648M
| $111K | 0.01% |
3,206
-2,423
| -43% | -$83.9K |
|
657
Shake Shack
SHAK
$3.98B
| $111K | 0.01% |
2,824
-856
| -23% | -$33.6K |
|
658
TG Therapeutics
TGTX
$5.08B
| $110K | 0.01% |
9,260
+7,088
| +326% | +$84.2K |
|
659
Xtrackers Harvest CSI 500 China A-Shares Small Cap ETF
ASHS
$29.7M
| $109K | 0.01% |
+2,634
| New | +$109K |
|
660
CommScope
COMM
$3.61B
| $109K | 0.01% |
+4,213
| New | +$109K |
|
|
QIWI
661
DELISTED
QIWI PLC
QIWI
| $109K | 0.01% |
6,091
+5,885
| +2,857% | +$105K |
|
662
Pricesmart
PSMT
$3.6B
| $108K | 0.01% |
1,303
+899
| +223% | +$74.5K |
|
663
A.O. Smith
AOS
$10.2B
| $107K | 0.01% |
+2,794
| New | +$107K |
|
664
BCE
BCE
$21.9B
| $107K | 0.01% |
+2,775
| New | +$107K |
|
665
PPG Industries
PPG
$24.5B
| $107K | 0.01% |
1,090
-5,083
| -82% | -$499K |
|
666
Barclays
BCS
$72.7B
| $106K | 0.01% |
8,801
+6,949
| +375% | +$83.7K |
|
667
Equinor
EQNR
$62.2B
| $106K | 0.01% |
7,627
+6,844
| +874% | +$95.1K |
|
668
Vanguard Dividend Appreciation ETF
VIG
$97.9B
| $106K | 0.01% |
1,372
+1,015
| +284% | +$78.4K |
|
669
Telefônica Brasil
VIV
$20.2B
| $106K | 0.01% |
11,838
+4,118
| +53% | +$36.9K |
|
|
FLTX
670
DELISTED
Fleetmatics Group PLC
FLTX
| $106K | 0.01% |
+2,101
| New | +$106K |
|
671
HDFC Bank
HDB
$180B
| $105K | 0.01% |
3,410
-848
| -20% | -$26.1K |
|
672
PTC Therapeutics
PTCT
$4.74B
| $105K | 0.01% |
3,263
-1,849
| -36% | -$59.5K |
|
673
T-Mobile US
TMUS
$269B
| $105K | 0.01% |
+2,705
| New | +$105K |
|
674
TSMC
TSM
$1.36T
| $105K | 0.01% |
4,631
-17,606
| -79% | -$399K |
|
|
DO
675
DELISTED
Diamond Offshore Drilling
DO
| $105K | 0.01% |
5,009
+2,741
| +121% | +$57.5K |
|