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
|
+$35.2M |
| 2 |
Micron Technology
MU
|
+$32.9M |
| 3 |
Berkshire Hathaway Class B
BRK.B
|
+$29.5M |
| 4 |
NVIDIA
NVDA
|
+$22.9M |
| 5 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$22M |
Top Sells
| 1 |
TWX
Time Warner Inc
TWX
|
+$34.8M |
| 2 |
Amazon
AMZN
|
+$33.4M |
| 3 |
Tesla
TSLA
|
+$19.8M |
| 4 |
Netflix
NFLX
|
+$17.7M |
| 5 |
TWTR
Twitter, Inc.
TWTR
|
+$13.5M |
Sector Composition
| 1 | Technology | 20.43% |
| 2 | Consumer Discretionary | 15.24% |
| 3 | Communication Services | 12% |
| 4 | Financials | 10.18% |
| 5 | Industrials | 9.87% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
876
RB Global
RBA
$21.5B
| $140K | ﹤0.01% |
4,132
+3,648
| +754% | +$124K |
|
877
Sprouts Farmers Market
SFM
$13.3B
| $140K | ﹤0.01% |
6,374
-3,200
| -33% | -$70.3K |
|
|
TEN
878
Tsakos Energy Navigation Ltd.
TEN
$690M
| $140K | ﹤0.01% |
7,563
+7,387
| +4,197% | +$137K |
|
|
SAVE
879
DELISTED
Spirit Airlines, Inc.
SAVE
| $139K | ﹤0.01% |
+3,832
| New | +$139K |
|
880
Arrow Electronics
ARW
$6.49B
| $138K | ﹤0.01% |
1,840
-410
| -18% | -$30.8K |
|
881
Corning
GLW
$62B
| $138K | ﹤0.01% |
+5,023
| New | +$138K |
|
|
ADMS
882
DELISTED
Adamas Pharmaceuticals, Inc.
ADMS
| $138K | ﹤0.01% |
5,364
+1,230
| +30% | +$31.6K |
|
|
ILG
883
DELISTED
ILG, Inc Common Stock
ILG
| $138K | ﹤0.01% |
4,188
-41,374
| -91% | -$1.36M |
|
884
American Tower
AMT
$90.7B
| $137K | ﹤0.01% |
+952
| New | +$137K |
|
885
Brookdale Senior Living
BKD
$1.84B
| $137K | ﹤0.01% |
+15,108
| New | +$137K |
|
886
Kinross Gold
KGC
$27.3B
| $137K | ﹤0.01% |
36,457
+4,227
| +13% | +$15.9K |
|
887
Newmark Group
NMRK
$3.32B
| $137K | ﹤0.01% |
+9,669
| New | +$137K |
|
|
PCOM
888
DELISTED
Points.com Inc. Common Shares
PCOM
| $137K | ﹤0.01% |
8,366
-3,702
| -31% | -$60.6K |
|
889
Quest Diagnostics
DGX
$20.4B
| $135K | ﹤0.01% |
1,230
-2,026
| -62% | -$222K |
|
|
SNP
890
DELISTED
CHINA PETROLEUM & CHEMICAL CORPORATION ADS (REP 100 ORDINARY H SHARES)
SNP
| $135K | ﹤0.01% |
1,511
-6,066
| -80% | -$542K |
|
|
QTNA
891
DELISTED
Quantenna Communications, Inc. Common Stock
QTNA
| $135K | ﹤0.01% |
+8,721
| New | +$135K |
|
|
AVHI
892
DELISTED
A V Homes, Inc.
AVHI
| $135K | ﹤0.01% |
+6,324
| New | +$135K |
|
893
Brookfield
BN
$99.7B
| $134K | ﹤0.01% |
6,192
+3,692
| +148% | +$79.9K |
|
894
Brown & Brown
BRO
$30.8B
| $134K | ﹤0.01% |
4,845
-1,796
| -27% | -$49.7K |
|
|
SMC
895
Summit Midstream Corporation
SMC
$276M
| $134K | ﹤0.01% |
584
-182
| -24% | -$41.8K |
|
|
JNP
896
DELISTED
Juniper Pharmaceuticals, Inc. Common Stock
JNP
| $134K | ﹤0.01% |
15,474
+15,235
| +6,374% | +$132K |
|
|
ACR
897
ACRES Commercial Realty
ACR
$157M
| $133K | ﹤0.01% |
+4,370
| New | +$133K |
|
898
IMAX
IMAX
$1.67B
| $133K | ﹤0.01% |
6,028
+2,615
| +77% | +$57.7K |
|
|
VSTO
899
DELISTED
Vista Outdoor Inc.
VSTO
| $133K | ﹤0.01% |
+8,635
| New | +$133K |
|
900
UBS Group
UBS
$128B
| $132K | ﹤0.01% |
+8,655
| New | +$132K |
|