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
|
$45.7M |
| 2 |
Walmart
WMT
|
$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$33.2M |
| 5 |
Citigroup
C
|
$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
$111M |
| 3 |
NVIDIA
NVDA
|
$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
$60.9M |
| 5 |
Procter & Gamble
PG
|
$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
301
Unum
UNM
$12.6B
| $1.19M | ﹤0.01% |
30,098
+21,444
| +248% | +$848K |
|
302
Direxion Daily Energy Bull 2X Shares
ERX
$218M
| $1.19M | ﹤0.01% |
20,363
-6,552
| -24% | -$382K |
|
|
MRTX
303
DELISTED
Mirati Therapeutics, Inc. Common Stock
MRTX
| $1.18M | ﹤0.01% |
31,788
-2,700
| -8% | -$100K |
|
304
AppFolio
APPF
$10.2B
| $1.18M | ﹤0.01% |
+9,462
| New | +$1.18M |
|
305
Burford Capital
BUR
$2.92B
| $1.18M | ﹤0.01% |
106,451
+92,396
| +657% | +$1.02M |
|
|
CUTR
306
DELISTED
Cutera, Inc.
CUTR
| $1.17M | ﹤0.01% |
+49,494
| New | +$1.17M |
|
307
ProShares UltraShort Yen
YCS
$32.9M
| $1.16M | ﹤0.01% |
41,438
+11,122
| +37% | +$311K |
|
308
Vanguard Value ETF
VTV
$143B
| $1.16M | ﹤0.01% |
8,392
+7,332
| +692% | +$1.01M |
|
|
VRAY
309
DELISTED
ViewRay, Inc.
VRAY
| $1.16M | ﹤0.01% |
334,637
-238,377
| -42% | -$824K |
|
|
PRVB
310
DELISTED
Provention Bio, Inc. Common Stock
PRVB
| $1.14M | ﹤0.01% |
47,345
-2,035
| -4% | -$49K |
|
311
Elanco Animal Health
ELAN
$9.16B
| $1.13M | ﹤0.01% |
120,250
-114,060
| -49% | -$1.07M |
|
312
SPDR Portfolio S&P 500 Value ETF
SPYV
$28B
| $1.13M | ﹤0.01% |
27,752
-12,255
| -31% | -$499K |
|
313
iShares Core S&P Mid-Cap ETF
IJH
$101B
| $1.13M | ﹤0.01% |
22,545
+6,795
| +43% | +$340K |
|
314
Byrna Technologies
BYRN
$445M
| $1.11M | ﹤0.01% |
146,652
+87,935
| +150% | +$667K |
|
315
Ericsson
ERIC
$26.7B
| $1.11M | ﹤0.01% |
189,844
-29,574
| -13% | -$173K |
|
316
InMode
INMD
$947M
| $1.1M | ﹤0.01% |
+34,421
| New | +$1.1M |
|
317
GitLab
GTLB
$7.63B
| $1.09M | ﹤0.01% |
+31,915
| New | +$1.09M |
|
318
Kroger
KR
$44.8B
| $1.09M | ﹤0.01% |
+22,125
| New | +$1.09M |
|
319
Synovus
SNV
$7.15B
| $1.09M | ﹤0.01% |
35,432
+17,758
| +100% | +$547K |
|
320
Innoviz Technologies
INVZ
$317M
| $1.09M | ﹤0.01% |
311,251
-116,458
| -27% | -$407K |
|
|
SBOW
321
DELISTED
SilverBow Resources, Inc.
SBOW
| $1.08M | ﹤0.01% |
47,353
+27,083
| +134% | +$619K |
|
322
Elastic
ESTC
$9.21B
| $1.07M | ﹤0.01% |
18,559
+14,669
| +377% | +$849K |
|
|
AMAM
323
DELISTED
Ambrx Biopharma, Inc. Common Stock
AMAM
| $1.07M | ﹤0.01% |
120,204
+109,159
| +988% | +$973K |
|
|
RETA
324
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $1.07M | ﹤0.01% |
11,741
-4,009
| -25% | -$364K |
|
325
Valaris
VAL
$3.64B
| $1.06M | ﹤0.01% |
+16,340
| New | +$1.06M |
|