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 |
NVIDIA
NVDA
|
$216M |
| 2 |
Apple
AAPL
|
$159M |
| 3 |
Broadcom
AVGO
|
$128M |
| 4 |
Booking.com
BKNG
|
$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$141M |
| 2 |
Amazon
AMZN
|
$53.1M |
| 3 |
TSMC
TSM
|
$45.7M |
| 4 |
Netflix
NFLX
|
$45.3M |
| 5 |
Pfizer
PFE
|
$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
401
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$256M
| $1.02M | ﹤0.01% |
21,241
+12,860
| +153% | +$618K |
|
402
Joby Aviation
JOBY
$11.5B
| $1.02M | ﹤0.01% |
96,636
+8,385
| +10% | +$88.4K |
|
403
Tyson Foods
TSN
$20B
| $1.01M | ﹤0.01% |
18,032
-57,787
| -76% | -$3.23M |
|
404
Direxion Daily Gold Miners Index Bull 2X Shares
NUGT
$847M
| $1M | ﹤0.01% |
+13,508
| New | +$1M |
|
405
Labcorp
LH
$23.2B
| $999K | ﹤0.01% |
+3,806
| New | +$999K |
|
406
Axcelis
ACLS
$2.53B
| $998K | ﹤0.01% |
+14,322
| New | +$998K |
|
407
Velocity Financial
VEL
$736M
| $998K | ﹤0.01% |
53,872
+327
| +0.6% | +$6.06K |
|
|
CEP
408
Cantor Equity Partners, Inc. Class A Ordinary Shares
CEP
$260M
| $995K | ﹤0.01% |
+35,814
| New | +$995K |
|
409
Allot
ALLT
$390M
| $993K | ﹤0.01% |
116,214
+8,067
| +7% | +$68.9K |
|
410
American Electric Power
AEP
$57.8B
| $992K | ﹤0.01% |
9,563
-9,829
| -51% | -$1.02M |
|
411
Urban Outfitters
URBN
$6.35B
| $992K | ﹤0.01% |
+13,686
| New | +$992K |
|
412
Sonoco
SON
$4.56B
| $988K | ﹤0.01% |
22,689
+22,217
| +4,707% | +$967K |
|
413
ARK Fintech Innovation ETF
ARKF
$1.33B
| $986K | ﹤0.01% |
19,626
+19,234
| +4,907% | +$966K |
|
414
Brighthouse Financial
BHF
$2.48B
| $985K | ﹤0.01% |
+18,334
| New | +$985K |
|
415
Mettler-Toledo International
MTD
$26.9B
| $982K | ﹤0.01% |
836
+63
| +8% | +$74K |
|
416
American Express
AXP
$227B
| $980K | ﹤0.01% |
+3,075
| New | +$980K |
|
417
Allegiant Air
ALGT
$1.18B
| $969K | ﹤0.01% |
+17,648
| New | +$969K |
|
418
Apellis Pharmaceuticals
APLS
$3.55B
| $968K | ﹤0.01% |
+55,934
| New | +$968K |
|
419
UiPath
PATH
$6.15B
| $968K | ﹤0.01% |
75,673
+25,852
| +52% | +$331K |
|
420
Cintas
CTAS
$82.4B
| $966K | ﹤0.01% |
4,336
-4,939
| -53% | -$1.1M |
|
421
Uranium Energy
UEC
$4.96B
| $963K | ﹤0.01% |
141,664
+100,184
| +242% | +$681K |
|
422
Academy Sports + Outdoors
ASO
$3.39B
| $962K | ﹤0.01% |
21,477
+9,216
| +75% | +$413K |
|
423
Beam Therapeutics
BEAM
$2.11B
| $962K | ﹤0.01% |
56,570
+40,103
| +244% | +$682K |
|
424
FNB Corp
FNB
$5.92B
| $962K | ﹤0.01% |
65,986
+46,499
| +239% | +$678K |
|
425
Constellation Brands
STZ
$26.2B
| $958K | ﹤0.01% |
+5,891
| New | +$958K |
|