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 |
Invesco QQQ Trust
QQQ
|
+$41.7M |
| 2 |
Mastercard
MA
|
+$33.6M |
| 3 |
Alibaba
BABA
|
+$33.4M |
| 4 |
Apple
AAPL
|
+$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
+$60M |
| 2 |
TSMC
TSM
|
+$49.5M |
| 3 |
iShares Silver Trust
SLV
|
+$26M |
| 4 |
Amazon
AMZN
|
+$25.2M |
| 5 |
Boeing
BA
|
+$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
276
GoDaddy
GDDY
$20.6B
| $1.6M | ﹤0.01% |
+19,263
| New | +$1.6M |
|
277
CyberArk
CYBR
$23.7B
| $1.59M | ﹤0.01% |
+9,865
| New | +$1.59M |
|
278
Energy Transfer Partners
ET
$58.9B
| $1.59M | ﹤0.01% |
+257,918
| New | +$1.59M |
|
279
Direxion Daily FTSE China Bull 3X Shares
YINN
$1.15B
| $1.59M | ﹤0.01% |
3,941
-211
| -5% | -$85.1K |
|
280
Americold
COLD
$3.84B
| $1.59M | ﹤0.01% |
+42,533
| New | +$1.59M |
|
281
Camping World
CWH
$1.12B
| $1.58M | ﹤0.01% |
+60,513
| New | +$1.58M |
|
282
Alamos Gold
AGI
$13.7B
| $1.57M | ﹤0.01% |
179,536
+80,184
| +81% | +$701K |
|
283
GoodRx Holdings
GDRX
$1.43B
| $1.56M | ﹤0.01% |
38,704
+34,303
| +779% | +$1.38M |
|
284
Direxion Daily S&P 500 Bear 3x Shares
SPXS
$436M
| $1.56M | ﹤0.01% |
+39,897
| New | +$1.56M |
|
285
Hasbro
HAS
$11B
| $1.54M | ﹤0.01% |
+16,462
| New | +$1.54M |
|
286
Invesco DB Agriculture Fund
DBA
$802M
| $1.54M | ﹤0.01% |
95,281
-32,110
| -25% | -$518K |
|
287
Ralph Lauren
RL
$18.8B
| $1.54M | ﹤0.01% |
14,819
-13,617
| -48% | -$1.41M |
|
288
Materials Select Sector SPDR Fund
XLB
$5.43B
| $1.53M | ﹤0.01% |
21,081
+4,940
| +31% | +$358K |
|
289
Direxion Daily S&P Biotech Bull 3X Shares
LABU
$717M
| $1.53M | ﹤0.01% |
+759
| New | +$1.53M |
|
290
WIX.com
WIX
$9.3B
| $1.52M | ﹤0.01% |
6,090
-2,871
| -32% | -$718K |
|
291
Direxion Daily Junior Gold Miners Index Bull 2X Shares
JNUG
$486M
| $1.52M | ﹤0.01% |
12,598
+4,486
| +55% | +$541K |
|
292
PennyMac Financial
PFSI
$6.25B
| $1.51M | ﹤0.01% |
23,028
+21,700
| +1,634% | +$1.42M |
|
293
Warner Music
WMG
$17.5B
| $1.5M | ﹤0.01% |
+39,532
| New | +$1.5M |
|
294
Cardinal Health
CAH
$36B
| $1.5M | ﹤0.01% |
27,945
-8,747
| -24% | -$468K |
|
295
Rocket Companies
RKT
$43.1B
| $1.5M | ﹤0.01% |
73,971
+71,571
| +2,982% | +$1.45M |
|
296
Welltower
WELL
$113B
| $1.48M | ﹤0.01% |
22,830
+5,704
| +33% | +$369K |
|
297
iShares 7-10 Year Treasury Bond ETF
IEF
$36.1B
| $1.47M | ﹤0.01% |
+12,295
| New | +$1.47M |
|
298
iShares Core S&P Mid-Cap ETF
IJH
$100B
| $1.47M | ﹤0.01% |
+32,050
| New | +$1.47M |
|
299
Corpay
CPAY
$22.1B
| $1.47M | ﹤0.01% |
+5,377
| New | +$1.47M |
|
300
SAP
SAP
$316B
| $1.46M | ﹤0.01% |
+11,216
| New | +$1.46M |
|