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
|
$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
$59.4M |
| 5 |
Intel
INTC
|
$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 2 |
iShares Silver Trust
SLV
|
$45.9M |
| 3 |
Ford
F
|
$32.5M |
| 4 |
Exxon Mobil
XOM
|
$20.4M |
| 5 |
Caterpillar
CAT
|
$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
OSH
301
DELISTED
Oak Street Health, Inc.
OSH
| $1.3M | ﹤0.01% |
79,038
+57,330
| +264% | +$942K |
|
302
PAR Technology
PAR
$1.96B
| $1.29M | ﹤0.01% |
34,491
-1,967
| -5% | -$73.7K |
|
303
ProShares Short Dow30
DOG
$120M
| $1.29M | ﹤0.01% |
+35,581
| New | +$1.29M |
|
|
PCOM
304
DELISTED
Points.com Inc. Common Shares
PCOM
| $1.29M | ﹤0.01% |
+51,475
| New | +$1.29M |
|
305
Ionis Pharmaceuticals
IONS
$9.76B
| $1.28M | ﹤0.01% |
34,626
+30,547
| +749% | +$1.13M |
|
|
PBT
306
Permian Basin Royalty Trust
PBT
$838M
| $1.28M | ﹤0.01% |
77,249
-7,100
| -8% | -$117K |
|
307
Celsius Holdings
CELH
$15B
| $1.28M | ﹤0.01% |
58,725
+53,316
| +986% | +$1.16M |
|
308
Embraer
ERJ
$11.2B
| $1.27M | ﹤0.01% |
144,802
-27,108
| -16% | -$238K |
|
309
Elanco Animal Health
ELAN
$9.16B
| $1.27M | ﹤0.01% |
+64,624
| New | +$1.27M |
|
310
Ball Corp
BALL
$13.9B
| $1.27M | ﹤0.01% |
+18,417
| New | +$1.27M |
|
311
Dow Inc
DOW
$17.4B
| $1.26M | ﹤0.01% |
24,452
-37,682
| -61% | -$1.94M |
|
|
HR
312
DELISTED
Healthcare Realty Trust Incorporated
HR
| $1.26M | ﹤0.01% |
46,322
+30,559
| +194% | +$831K |
|
313
Palo Alto Networks
PANW
$130B
| $1.25M | ﹤0.01% |
+15,204
| New | +$1.25M |
|
314
HealthEquity
HQY
$7.88B
| $1.24M | ﹤0.01% |
20,232
-73,620
| -78% | -$4.52M |
|
315
Innovative Industrial Properties
IIPR
$1.61B
| $1.24M | ﹤0.01% |
11,304
+10,133
| +865% | +$1.11M |
|
316
American Eagle Outfitters
AEO
$3.26B
| $1.24M | ﹤0.01% |
+110,987
| New | +$1.24M |
|
317
Xcel Energy
XEL
$43B
| $1.24M | ﹤0.01% |
+17,463
| New | +$1.24M |
|
318
ICL Group
ICL
$7.85B
| $1.23M | ﹤0.01% |
135,471
-66,689
| -33% | -$605K |
|
|
ESTE
319
DELISTED
Earthstone Energy Inc. Class A Common Stock
ESTE
| $1.21M | ﹤0.01% |
88,912
+71,228
| +403% | +$972K |
|
320
Global X Lithium & Battery Tech ETF
LIT
$1.16B
| $1.21M | ﹤0.01% |
16,692
-38,120
| -70% | -$2.77M |
|
321
ICICI Bank
IBN
$113B
| $1.21M | ﹤0.01% |
67,976
-28,720
| -30% | -$509K |
|
|
DM
322
DELISTED
Desktop Metal, Inc.
DM
| $1.2M | ﹤0.01% |
54,602
+9,174
| +20% | +$202K |
|
323
lululemon athletica
LULU
$19.9B
| $1.19M | ﹤0.01% |
4,372
-12,859
| -75% | -$3.5M |
|
324
iShares US Home Construction ETF
ITB
$3.35B
| $1.19M | ﹤0.01% |
+22,661
| New | +$1.19M |
|
325
FIVE9
FIVN
$2.06B
| $1.18M | ﹤0.01% |
+12,991
| New | +$1.18M |
|