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
|
+$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 4 |
iShares Silver Trust
SLV
|
+$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
+$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
+$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
+$42.8M |
| 3 |
Verizon
VZ
|
+$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
+$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
+$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.23% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
776
MicroSectors FANG+ ETNs due Jan 8 2038
FNGS
$521M
| $439K | ﹤0.01% |
15,176
-10,644
| -41% | -$308K |
|
777
Trinseo
TSE
$81.6M
| $439K | ﹤0.01% |
9,179
+4,428
| +93% | +$212K |
|
778
Bandwidth Inc
BAND
$458M
| $438K | ﹤0.01% |
13,535
+5,968
| +79% | +$193K |
|
779
Sweetgreen
SG
$1.03B
| $437K | ﹤0.01% |
13,662
+13,062
| +2,177% | +$418K |
|
780
Global X Autonomous & Electric Vehicles ETF
DRIV
$337M
| $436K | ﹤0.01% |
15,821
+9,284
| +142% | +$256K |
|
781
Opko Health
OPK
$1.12B
| $436K | ﹤0.01% |
126,869
-69,983
| -36% | -$241K |
|
782
Brown & Brown
BRO
$30.5B
| $434K | ﹤0.01% |
+6,013
| New | +$434K |
|
|
MTTR
783
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
| $434K | ﹤0.01% |
+53,522
| New | +$434K |
|
784
Bloom Energy
BE
$14.7B
| $433K | ﹤0.01% |
17,932
+10,750
| +150% | +$260K |
|
785
Labcorp
LH
$22.7B
| $433K | ﹤0.01% |
+1,912
| New | +$433K |
|
786
Omega Healthcare
OHI
$12.6B
| $433K | ﹤0.01% |
+13,900
| New | +$433K |
|
|
HR
787
DELISTED
Healthcare Realty Trust Incorporated
HR
| $433K | ﹤0.01% |
15,763
+15,316
| +3,426% | +$421K |
|
788
Imperial Oil
IMO
$46.6B
| $429K | ﹤0.01% |
8,879
+5,583
| +169% | +$270K |
|
789
Amplitude
AMPL
$1.48B
| $428K | ﹤0.01% |
+23,266
| New | +$428K |
|
790
CAE Inc
CAE
$8.44B
| $428K | ﹤0.01% |
16,442
+1,365
| +9% | +$35.5K |
|
|
RETA
791
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $427K | ﹤0.01% |
13,050
-24,100
| -65% | -$789K |
|
792
Warrior Met Coal
HCC
$3.08B
| $426K | ﹤0.01% |
11,495
+8,651
| +304% | +$321K |
|
|
SHLX
793
DELISTED
Shell Midstream Partners, L.P.
SHLX
| $426K | ﹤0.01% |
+29,995
| New | +$426K |
|
794
Mattel
MAT
$5.78B
| $424K | ﹤0.01% |
19,119
-24,984
| -57% | -$554K |
|
795
Oil States International
OIS
$341M
| $423K | ﹤0.01% |
60,952
+57,186
| +1,518% | +$397K |
|
796
IonQ
IONQ
$13.1B
| $421K | ﹤0.01% |
+33,042
| New | +$421K |
|
797
AppFolio
APPF
$9.92B
| $420K | ﹤0.01% |
3,716
+3,593
| +2,921% | +$406K |
|
|
ARR
798
Armour Residential REIT
ARR
$1.74B
| $420K | ﹤0.01% |
+10,006
| New | +$420K |
|
799
Global X Cybersecurity ETF
BUG
$1.12B
| $419K | ﹤0.01% |
13,356
-10,912
| -45% | -$342K |
|
800
Cars.com
CARS
$815M
| $417K | ﹤0.01% |
+28,915
| New | +$417K |
|