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 | 8.24% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
401
AutoNation
AN
$8.55B
| $1.36M | ﹤0.01% |
+13,678
| New | +$1.36M |
|
402
iShares MSCI South Korea ETF
EWY
$5.22B
| $1.36M | ﹤0.01% |
19,128
-1,532
| -7% | -$109K |
|
403
PVH
PVH
$4.22B
| $1.36M | ﹤0.01% |
+17,765
| New | +$1.36M |
|
|
CDR
404
DELISTED
Cedar Realty Trust, Inc
CDR
| $1.36M | ﹤0.01% |
49,173
+42,520
| +639% | +$1.18M |
|
405
Stanley Black & Decker
SWK
$12.1B
| $1.35M | ﹤0.01% |
9,691
+5,985
| +161% | +$836K |
|
406
iShares Select U.S. REIT ETF
ICF
$1.92B
| $1.33M | ﹤0.01% |
18,772
-6,955
| -27% | -$494K |
|
407
SandRidge Energy
SD
$420M
| $1.31M | ﹤0.01% |
82,032
+39,582
| +93% | +$634K |
|
408
Campbell Soup
CPB
$10.1B
| $1.31M | ﹤0.01% |
29,448
-18,932
| -39% | -$843K |
|
409
Energy Vault
NRGV
$335M
| $1.31M | ﹤0.01% |
+82,532
| New | +$1.31M |
|
410
Penske Automotive Group
PAG
$12.4B
| $1.31M | ﹤0.01% |
13,958
+11,934
| +590% | +$1.12M |
|
411
StoneCo
STNE
$4.63B
| $1.31M | ﹤0.01% |
111,635
+70,068
| +169% | +$820K |
|
412
iShares MSCI Japan ETF
EWJ
$15.5B
| $1.3M | ﹤0.01% |
21,176
-7,106
| -25% | -$438K |
|
413
Hecla Mining
HL
$6.04B
| $1.3M | ﹤0.01% |
198,461
+112,408
| +131% | +$738K |
|
414
ProShares UltraPro Short Dow 30
SDOW
$176M
| $1.3M | ﹤0.01% |
11,495
+6,729
| +141% | +$760K |
|
415
Cencora
COR
$56.7B
| $1.29M | ﹤0.01% |
8,358
-959
| -10% | -$148K |
|
416
iShares US Transportation ETF
IYT
$605M
| $1.29M | ﹤0.01% |
+19,100
| New | +$1.29M |
|
417
VanEck Agribusiness ETF
MOO
$625M
| $1.28M | ﹤0.01% |
12,285
+11,900
| +3,091% | +$1.24M |
|
418
Corsair Gaming
CRSR
$937M
| $1.28M | ﹤0.01% |
+60,648
| New | +$1.28M |
|
419
Thor Industries
THO
$5.94B
| $1.27M | ﹤0.01% |
16,177
+11,903
| +278% | +$937K |
|
420
LXP Industrial Trust
LXP
$2.71B
| $1.26M | ﹤0.01% |
80,090
+73,163
| +1,056% | +$1.15M |
|
421
Chemours
CC
$2.34B
| $1.25M | ﹤0.01% |
+39,771
| New | +$1.25M |
|
422
JetBlue
JBLU
$1.85B
| $1.25M | ﹤0.01% |
83,663
-178,129
| -68% | -$2.66M |
|
423
Vanguard Small-Cap Growth ETF
VBK
$20.4B
| $1.24M | ﹤0.01% |
+5,008
| New | +$1.24M |
|
424
Natera
NTRA
$23.1B
| $1.24M | ﹤0.01% |
+30,483
| New | +$1.24M |
|
425
Eli Lilly
LLY
$652B
| $1.24M | ﹤0.01% |
+4,324
| New | +$1.24M |
|