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
|
$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
$75.9M |
| 3 |
NVIDIA
NVDA
|
$42.6M |
| 4 |
Netflix
NFLX
|
$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$24.3M |
| 5 |
Broadcom
AVGO
|
$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
401
EQT Corp
EQT
$32.2B
| $617K | ﹤0.01% |
51,856
+37,510
| +261% | +$446K |
|
402
Green Dot
GDOT
$760M
| $616K | ﹤0.01% |
12,554
-27,695
| -69% | -$1.36M |
|
403
Globant
GLOB
$2.78B
| $616K | ﹤0.01% |
4,112
-1,232
| -23% | -$185K |
|
|
TWOU
404
DELISTED
2U, Inc.
TWOU
| $616K | ﹤0.01% |
541
-8
| -1% | -$9.11K |
|
405
American Water Works
AWK
$28B
| $609K | ﹤0.01% |
+4,738
| New | +$609K |
|
406
Masimo
MASI
$8B
| $607K | ﹤0.01% |
2,664
-146
| -5% | -$33.3K |
|
407
Akebia Therapeutics
AKBA
$785M
| $606K | ﹤0.01% |
44,648
-71,938
| -62% | -$976K |
|
408
Transocean
RIG
$2.9B
| $604K | ﹤0.01% |
+330,298
| New | +$604K |
|
409
SLM Corp
SLM
$6.49B
| $600K | ﹤0.01% |
85,359
+26,379
| +45% | +$185K |
|
|
ATVI
410
DELISTED
Activision Blizzard Inc.
ATVI
| $599K | ﹤0.01% |
7,898
-78,533
| -91% | -$5.96M |
|
411
ProShares UltraShort Bloomberg Crude Oil
SCO
$125M
| $591K | ﹤0.01% |
1,620
+417
| +35% | +$152K |
|
412
NetApp
NTAP
$23.7B
| $585K | ﹤0.01% |
+13,187
| New | +$585K |
|
413
Copart
CPRT
$47B
| $584K | ﹤0.01% |
28,100
-5,248
| -16% | -$109K |
|
414
BRF SA
BRFS
$5.86B
| $582K | ﹤0.01% |
146,705
+121,260
| +477% | +$481K |
|
415
NovoCure
NVCR
$1.37B
| $580K | ﹤0.01% |
9,791
+9,591
| +4,796% | +$568K |
|
416
Anterix
ATEX
$412M
| $578K | ﹤0.01% |
12,749
+11,455
| +885% | +$519K |
|
|
AVYA
417
DELISTED
Avaya Holdings Corp. Common Stock
AVYA
| $578K | ﹤0.01% |
46,786
+46,118
| +6,904% | +$570K |
|
418
Sangamo Therapeutics
SGMO
$165M
| $575K | ﹤0.01% |
64,240
+40,558
| +171% | +$363K |
|
419
Kraft Heinz
KHC
$32.3B
| $572K | ﹤0.01% |
17,951
-215,049
| -92% | -$6.85M |
|
420
Aecom
ACM
$16.8B
| $569K | ﹤0.01% |
15,142
-10,122
| -40% | -$380K |
|
421
Casey's General Stores
CASY
$18.8B
| $569K | ﹤0.01% |
3,811
-570
| -13% | -$85.1K |
|
422
AGNC Investment
AGNC
$10.8B
| $566K | ﹤0.01% |
+43,947
| New | +$566K |
|
423
iShares Mortgage Real Estate ETF
REM
$618M
| $564K | ﹤0.01% |
22,713
-26,093
| -53% | -$648K |
|
424
Starwood Property Trust
STWD
$7.56B
| $562K | ﹤0.01% |
37,609
-4,496
| -11% | -$67.2K |
|
|
MMP
425
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $562K | ﹤0.01% |
13,032
-18,244
| -58% | -$787K |
|