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 | |
|---|---|---|---|---|---|---|
276
Silicon Motion
SIMO
$2.8B
| $1.35M | ﹤0.01% |
+20,572
| New | +$1.35M |
|
277
Tenaris
TS
$18.2B
| $1.34M | ﹤0.01% |
+47,270
| New | +$1.34M |
|
278
Accel Entertainment
ACEL
$967M
| $1.34M | ﹤0.01% |
147,272
+146,240
| +14,171% | +$1.33M |
|
279
Alexandria Real Estate Equities
ARE
$14.5B
| $1.34M | ﹤0.01% |
10,672
+126
| +1% | +$15.8K |
|
280
Zillow
ZG
$20.5B
| $1.34M | ﹤0.01% |
30,636
+2,602
| +9% | +$114K |
|
281
Macy's
M
$4.64B
| $1.33M | ﹤0.01% |
75,943
-189,284
| -71% | -$3.31M |
|
282
Zimmer Biomet
ZBH
$20.9B
| $1.32M | ﹤0.01% |
+10,211
| New | +$1.32M |
|
283
Encompass Health
EHC
$12.6B
| $1.32M | ﹤0.01% |
+24,328
| New | +$1.32M |
|
284
Signet Jewelers
SIG
$3.85B
| $1.31M | ﹤0.01% |
16,852
+6,706
| +66% | +$521K |
|
|
XM
285
DELISTED
Qualtrics International Inc. Class A Common Stock
XM
| $1.31M | ﹤0.01% |
73,438
+19,829
| +37% | +$353K |
|
286
Cenovus Energy
CVE
$28.7B
| $1.3M | ﹤0.01% |
74,313
-336,733
| -82% | -$5.88M |
|
287
SPDR S&P MidCap 400 ETF Trust
MDY
$24B
| $1.29M | ﹤0.01% |
2,821
-415
| -13% | -$190K |
|
|
AIV
288
Aimco
AIV
$1.11B
| $1.29M | ﹤0.01% |
+167,404
| New | +$1.29M |
|
289
Realty Income
O
$54.2B
| $1.27M | ﹤0.01% |
20,053
-5,559
| -22% | -$352K |
|
290
Federated Hermes
FHI
$4.1B
| $1.27M | ﹤0.01% |
+31,532
| New | +$1.27M |
|
291
RTX Corp
RTX
$211B
| $1.26M | ﹤0.01% |
+12,858
| New | +$1.26M |
|
292
Maxeon Solar Technologies
MAXN
$67.1M
| $1.25M | ﹤0.01% |
472
+437
| +1,249% | +$1.16M |
|
293
PureCycle Technologies
PCT
$2.41B
| $1.24M | ﹤0.01% |
+176,630
| New | +$1.24M |
|
294
Navios Maritime Partners
NMM
$1.42B
| $1.23M | ﹤0.01% |
51,043
+21,739
| +74% | +$524K |
|
295
Hims & Hers Health
HIMS
$10.9B
| $1.23M | ﹤0.01% |
124,089
+71,877
| +138% | +$712K |
|
|
HCP
296
DELISTED
HashiCorp, Inc. Class A Common Stock
HCP
| $1.22M | ﹤0.01% |
41,644
-6,709
| -14% | -$196K |
|
|
LGF.B
297
DELISTED
Lions Gate Entertainment Corp. Class B Non-Voting Shares
LGF.B
| $1.21M | ﹤0.01% |
116,906
+34,722
| +42% | +$360K |
|
298
Camtek
CAMT
$3.6B
| $1.2M | ﹤0.01% |
42,289
-6,187
| -13% | -$175K |
|
299
FIVE9
FIVN
$2.06B
| $1.19M | ﹤0.01% |
16,487
+5,090
| +45% | +$368K |
|
|
SOVO
300
DELISTED
Sovos Brands, Inc. Common Stock
SOVO
| $1.19M | ﹤0.01% |
+71,419
| New | +$1.19M |
|