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 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$32.1M |
| 2 |
PARA
Paramount Global Class B
PARA
|
$23.3M |
| 3 |
Pinduoduo
PDD
|
$17.3M |
| 4 |
Pfizer
PFE
|
$16.8M |
| 5 |
American Airlines Group
AAL
|
$14.5M |
Top Sells
| 1 |
Amazon
AMZN
|
$64.4M |
| 2 |
Alphabet (Google) Class C
GOOG
|
$38.1M |
| 3 |
AutoZone
AZO
|
$32.2M |
| 4 |
SPDR S&P 500 ETF Trust
SPY
|
$25.3M |
| 5 |
Apple
AAPL
|
$22.5M |
Sector Composition
| 1 | Technology | 20.25% |
| 2 | Consumer Discretionary | 15.22% |
| 3 | Healthcare | 10.03% |
| 4 | Financials | 9.2% |
| 5 | Industrials | 9.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
SI
351
DELISTED
Silvergate Capital Corporation
SI
| $1.13M | ﹤0.01% |
+7,953
| New | +$1.13M |
|
352
TMC The Metals Company
TMC
$2.08B
| $1.13M | ﹤0.01% |
+113,702
| New | +$1.13M |
|
353
Verisk Analytics
VRSK
$37.8B
| $1.13M | ﹤0.01% |
6,374
+1,393
| +28% | +$246K |
|
354
Gerdau
GGB
$6.39B
| $1.12M | ﹤0.01% |
265,345
+158,132
| +147% | +$670K |
|
355
Quadratic Interest Rate Volatility and Inflation Hedge ETF
IVOL
$365M
| $1.12M | ﹤0.01% |
39,237
+35,197
| +871% | +$1.01M |
|
|
WWE
356
DELISTED
World Wrestling Entertainment
WWE
| $1.12M | ﹤0.01% |
20,602
+10,495
| +104% | +$569K |
|
|
357
Alphabet (Google) Class A
GOOGL
$2.84T
| $1.11M | ﹤0.01% |
10,800
-131,940
| -92% | -$13.6M |
|
|
AUY
358
DELISTED
Yamana Gold, Inc.
AUY
| $1.11M | ﹤0.01% |
255,682
+143,744
| +128% | +$623K |
|
359
Veeco
VECO
$1.47B
| $1.11M | ﹤0.01% |
53,465
+10,822
| +25% | +$224K |
|
360
Brookfield Renewable
BEPC
$5.96B
| $1.1M | ﹤0.01% |
+23,568
| New | +$1.1M |
|
361
Equinox Gold
EQX
$7.65B
| $1.1M | ﹤0.01% |
137,655
-41,406
| -23% | -$331K |
|
362
Outdoor Holding Company Common Stock
POWW
$169M
| $1.1M | ﹤0.01% |
+185,495
| New | +$1.1M |
|
363
NovoCure
NVCR
$1.37B
| $1.09M | ﹤0.01% |
8,260
+7,994
| +3,005% | +$1.06M |
|
|
PING
364
DELISTED
Ping Identity Holding Corp.
PING
| $1.09M | ﹤0.01% |
49,760
+38,832
| +355% | +$851K |
|
365
AudioCodes
AUDC
$274M
| $1.09M | ﹤0.01% |
40,406
+39,325
| +3,638% | +$1.06M |
|
366
Upwork
UPWK
$2.15B
| $1.09M | ﹤0.01% |
+24,362
| New | +$1.09M |
|
367
ProShares Short 20+ Year Treasury ETF
TBF
$70.1M
| $1.09M | ﹤0.01% |
60,151
+13,155
| +28% | +$238K |
|
|
FINV
368
FinVolution Group
FINV
$2B
| $1.09M | ﹤0.01% |
155,339
+143,806
| +1,247% | +$1.01M |
|
369
Cullen/Frost Bankers
CFR
$8.24B
| $1.09M | ﹤0.01% |
9,999
+220
| +2% | +$23.9K |
|
370
AB InBev
BUD
$118B
| $1.09M | ﹤0.01% |
17,291
+17,251
| +43,128% | +$1.08M |
|
371
Humana
HUM
$37B
| $1.09M | ﹤0.01% |
2,590
-889
| -26% | -$372K |
|
|
PLLL
372
DELISTED
Piedmont Lithium Limited American Depositary Receipts
PLLL
| $1.09M | ﹤0.01% |
+15,621
| New | +$1.09M |
|
|
XLRN
373
DELISTED
Acceleron Pharma Inc.
XLRN
| $1.08M | ﹤0.01% |
7,961
+6,669
| +516% | +$904K |
|
|
THBR
374
DELISTED
Thunder Bridge Acquisition II, Ltd. Class A Ordinary Shares
THBR
| $1.08M | ﹤0.01% |
+103,391
| New | +$1.08M |
|
375
Bread Financial
BFH
$3.09B
| $1.08M | ﹤0.01% |
12,035
+10,145
| +537% | +$907K |
|