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
|
$92M |
| 2 |
Walt Disney
DIS
|
$25.4M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
$12.8M |
| 4 |
Baidu
BIDU
|
$12.2M |
| 5 |
RHT
Red Hat Inc
RHT
|
$11.6M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
$61.4M |
| 2 |
Amazon
AMZN
|
$59.6M |
| 3 |
Alphabet (Google) Class C
GOOG
|
$35.5M |
| 4 |
Apple
AAPL
|
$19.6M |
| 5 |
Financial Select Sector SPDR Fund
XLF
|
$18.2M |
Sector Composition
| 1 | Communication Services | 16.98% |
| 2 | Technology | 12.42% |
| 3 | Healthcare | 10.02% |
| 4 | Consumer Discretionary | 8.53% |
| 5 | Industrials | 6.02% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
451
Digital Realty Trust
DLR
$55.7B
| $423K | ﹤0.01% |
+3,560
| New | +$423K |
|
|
ROCC
452
DELISTED
Ranger Oil Corporation Class A Common Stock
ROCC
| $423K | ﹤0.01% |
9,601
+356
| +4% | +$15.7K |
|
|
MNTV
453
DELISTED
Momentive Global Inc. Common Stock
MNTV
| $420K | ﹤0.01% |
23,103
+20,643
| +839% | +$375K |
|
454
Editas Medicine
EDIT
$248M
| $419K | ﹤0.01% |
17,148
+15,538
| +965% | +$380K |
|
455
Packaging Corp of America
PKG
$19.8B
| $417K | ﹤0.01% |
+4,201
| New | +$417K |
|
456
Texas Roadhouse
TXRH
$11.2B
| $417K | ﹤0.01% |
+6,709
| New | +$417K |
|
457
BBVA Argentina
BBAR
$2.52B
| $416K | ﹤0.01% |
43,790
+10,023
| +30% | +$95.2K |
|
458
Commercial Metals
CMC
$6.63B
| $414K | ﹤0.01% |
24,248
+17,717
| +271% | +$302K |
|
459
Green Plains
GPRE
$698M
| $410K | ﹤0.01% |
+24,621
| New | +$410K |
|
|
PCMI
460
DELISTED
PCM, Inc
PCMI
| $408K | ﹤0.01% |
+11,156
| New | +$408K |
|
|
TVTY
461
DELISTED
Tivity Health, Inc. Common Stock
TVTY
| $406K | ﹤0.01% |
23,172
+19,363
| +508% | +$339K |
|
462
Hilltop Holdings
HTH
$2.22B
| $403K | ﹤0.01% |
22,126
+14,612
| +194% | +$266K |
|
|
GMS
463
DELISTED
GMS Inc
GMS
| $402K | ﹤0.01% |
26,589
+20,609
| +345% | +$312K |
|
464
ProShares UltraShort Bloomberg Crude Oil
SCO
$125M
| $401K | ﹤0.01% |
1,189
-975
| -45% | -$329K |
|
465
Ultra Clean Holdings
UCTT
$1.11B
| $399K | ﹤0.01% |
38,603
-49,189
| -56% | -$508K |
|
|
DISH
466
DELISTED
DISH Network Corp.
DISH
| $398K | ﹤0.01% |
12,580
-43,334
| -78% | -$1.37M |
|
467
iShares MSCI ACWI ETF
ACWI
$22.1B
| $396K | ﹤0.01% |
+5,489
| New | +$396K |
|
468
Hain Celestial
HAIN
$164M
| $396K | ﹤0.01% |
17,150
+3,286
| +24% | +$75.9K |
|
469
First Horizon
FHN
$11.3B
| $395K | ﹤0.01% |
+28,318
| New | +$395K |
|
|
TIVO
470
DELISTED
Tivo Inc
TIVO
| $395K | ﹤0.01% |
+42,457
| New | +$395K |
|
|
GBT
471
DELISTED
Global Blood Therapeutics, Inc.
GBT
| $391K | ﹤0.01% |
7,405
-5,599
| -43% | -$296K |
|
|
VG
472
DELISTED
Vonage Holdings Corporation
VG
| $391K | ﹤0.01% |
38,948
+9,074
| +30% | +$91.1K |
|
473
Tenet Healthcare
THC
$17.3B
| $387K | ﹤0.01% |
+13,442
| New | +$387K |
|
474
Upbound Group
UPBD
$1.47B
| $386K | ﹤0.01% |
18,501
+18,301
| +9,151% | +$382K |
|
|
ZNGA
475
DELISTED
ZYNGA INC. CL A COMMON
ZNGA
| $384K | ﹤0.01% |
72,107
-23,840
| -25% | -$127K |
|