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 |
Goldman Sachs
GS
|
+$38.4M |
| 2 |
Micron Technology
MU
|
+$23.7M |
| 3 |
NVIDIA
NVDA
|
+$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$21.7M |
| 5 |
Wells Fargo
WFC
|
+$20.4M |
Top Sells
| 1 |
Citigroup
C
|
+$21.6M |
| 2 |
Apple
AAPL
|
+$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$13.3M |
| 4 |
Eli Lilly
LLY
|
+$9.69M |
| 5 |
Mastercard
MA
|
+$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
901
Kennedy-Wilson Holdings
KW
$1.21B
| $102K | ﹤0.01% |
4,622
-3,189
| -41% | -$70.4K |
|
|
SAGE
902
DELISTED
Sage Therapeutics
SAGE
| $102K | ﹤0.01% |
1,446
-1,077
| -43% | -$76K |
|
903
Scorpio Tankers
STNG
$3.09B
| $102K | ﹤0.01% |
+2,302
| New | +$102K |
|
904
Tile Shop Holdings
TTSH
$285M
| $102K | ﹤0.01% |
+5,332
| New | +$102K |
|
905
UBS Group
UBS
$131B
| $102K | ﹤0.01% |
6,410
-21,120
| -77% | -$336K |
|
906
Merit Medical Systems
MMSI
$4.9B
| $101K | ﹤0.01% |
+3,525
| New | +$101K |
|
907
Myers Industries
MYE
$597M
| $101K | ﹤0.01% |
+6,411
| New | +$101K |
|
|
EMWP
908
DELISTED
Eros Media World PLC
EMWP
| $101K | ﹤0.01% |
491
-5
| -1% | -$1.03K |
|
|
RSO
909
DELISTED
Resource Capital Corp.
RSO
| $101K | ﹤0.01% |
10,376
+2,084
| +25% | +$20.3K |
|
|
CBF
910
DELISTED
Capital Bank Financial Corp. Class A Common Stock
CBF
| $101K | ﹤0.01% |
+2,335
| New | +$101K |
|
911
Aurinia Pharmaceuticals
AUPH
$1.62B
| $100K | ﹤0.01% |
+13,749
| New | +$100K |
|
912
Cross Country Healthcare
CCRN
$422M
| $100K | ﹤0.01% |
+6,981
| New | +$100K |
|
|
HIBB
913
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $99K | ﹤0.01% |
3,366
+1,388
| +70% | +$40.8K |
|
914
Acadia Healthcare
ACHC
$2B
| $98K | ﹤0.01% |
2,264
-1,182
| -34% | -$51.2K |
|
915
Leidos
LDOS
$23.4B
| $98K | ﹤0.01% |
+1,933
| New | +$98K |
|
916
Liquidity Services
LQDT
$876M
| $98K | ﹤0.01% |
+12,256
| New | +$98K |
|
|
GNC
917
DELISTED
GNC Holdings, Inc.
GNC
| $98K | ﹤0.01% |
13,425
-15,700
| -54% | -$115K |
|
|
SXE
918
DELISTED
Southcross Energy Partners, L.P.
SXE
| $98K | ﹤0.01% |
+28,268
| New | +$98K |
|
919
iShares MSCI ACWI ETF
ACWI
$22.6B
| $97K | ﹤0.01% |
+1,542
| New | +$97K |
|
920
Stride
LRN
$6.08B
| $97K | ﹤0.01% |
5,100
+3,433
| +206% | +$65.3K |
|
921
RPC Inc
RES
$1.01B
| $97K | ﹤0.01% |
+5,308
| New | +$97K |
|
|
BLCM
922
DELISTED
Bellicum Pharmaceuticals, Inc.
BLCM
| $97K | ﹤0.01% |
793
-28
| -3% | -$3.43K |
|
923
DHT Holdings
DHT
$2.04B
| $96K | ﹤0.01% |
+21,593
| New | +$96K |
|
924
National Fuel Gas
NFG
$7.95B
| $96K | ﹤0.01% |
1,612
+1,487
| +1,190% | +$88.6K |
|
|
VIRX
925
DELISTED
Viracta Therapeutics, Inc. Common Stock
VIRX
| $96K | ﹤0.01% |
+676
| New | +$96K |
|