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 |
Amazon
AMZN
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
901
BRC Inc
BRCC
$189M
| $146K | ﹤0.01% |
23,965
+18,427
| +333% | +$112K |
|
902
Direxion Daily S&P 500 High Beta Bear 3X Shares
HIBS
$27.6M
| $146K | ﹤0.01% |
1,918
-921
| -32% | -$70.1K |
|
903
Denny's
DENN
$270M
| $145K | ﹤0.01% |
15,798
-10,873
| -41% | -$99.8K |
|
904
Kayne Anderson Energy Infrastructure Fund
KYN
$2.06B
| $145K | ﹤0.01% |
17,020
+11,333
| +199% | +$96.6K |
|
905
Edison International
EIX
$21.6B
| $144K | ﹤0.01% |
+2,267
| New | +$144K |
|
906
Provident Bancorp
PVBC
$228M
| $144K | ﹤0.01% |
+19,855
| New | +$144K |
|
907
ProShares Ultra S&P500
SSO
$7.4B
| $143K | ﹤0.01% |
3,220
-20,718
| -87% | -$920K |
|
908
Direxion Daily Technology Bull 3x Shares
TECL
$3.79B
| $143K | ﹤0.01% |
6,502
+6,302
| +3,151% | +$139K |
|
|
PLYA
909
DELISTED
Playa Hotels & Resorts
PLYA
| $142K | ﹤0.01% |
21,883
+2,913
| +15% | +$18.9K |
|
910
Coca-Cola Femsa
KOF
$18.3B
| $141K | ﹤0.01% |
2,090
+1,903
| +1,018% | +$128K |
|
911
Neuronetics
STIM
$229M
| $141K | ﹤0.01% |
20,529
+19,059
| +1,297% | +$131K |
|
912
Natural Resource Partners
NRP
$1.35B
| $140K | ﹤0.01% |
+2,588
| New | +$140K |
|
913
Rush Street Interactive
RSI
$2.05B
| $140K | ﹤0.01% |
39,264
-25,188
| -39% | -$89.8K |
|
914
SFL Corp
SFL
$1.1B
| $140K | ﹤0.01% |
15,288
+7,026
| +85% | +$64.3K |
|
915
SPDR Portfolio S&P 1500 Composite Stock Market ETF
SPTM
$11.4B
| $140K | ﹤0.01% |
+2,964
| New | +$140K |
|
|
SCPL
916
DELISTED
SciPlay Corporation Class A Common Stock
SCPL
| $140K | ﹤0.01% |
8,768
+1,971
| +29% | +$31.5K |
|
917
DarioHealth
DRIO
$17M
| $139K | ﹤0.01% |
1,632
-905
| -36% | -$77.1K |
|
918
Fidelity MSCI Energy Index ETF
FENY
$1.45B
| $139K | ﹤0.01% |
+5,845
| New | +$139K |
|
919
Sotera Health
SHC
$4.58B
| $136K | ﹤0.01% |
16,416
+14,110
| +612% | +$117K |
|
920
Vanguard Small-Cap Growth ETF
VBK
$20.7B
| $136K | ﹤0.01% |
682
-2,269
| -77% | -$452K |
|
|
WSR
921
Whitestone REIT
WSR
$670M
| $136K | ﹤0.01% |
14,195
-8,272
| -37% | -$79.3K |
|
|
XXII
922
22nd Century Group
XXII
$6.81M
| – | – |
0
| – | -$114K |
|
923
e.l.f. Beauty
ELF
$7.83B
| $135K | ﹤0.01% |
+2,454
| New | +$135K |
|
|
MITT
924
AG Mortgage Investment Trust
MITT
$247M
| $135K | ﹤0.01% |
25,571
-7,249
| -22% | -$38.3K |
|
|
CTIC
925
DELISTED
CTI BioPharma Corp. (DE) Common Stock
CTIC
| $135K | ﹤0.01% |
22,489
-17,882
| -44% | -$107K |
|