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 |
Alphabet (Google) Class C
GOOG
|
+$54.1M |
| 2 |
Apple
AAPL
|
+$28.6M |
| 3 |
Meta Platforms (Facebook)
META
|
+$16.5M |
| 4 |
IBM
IBM
|
+$13.4M |
| 5 |
Baidu
BIDU
|
+$10.3M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$9.89M |
| 2 |
McDonald's
MCD
|
+$8.52M |
| 3 |
Ralph Lauren
RL
|
+$5.22M |
| 4 |
Intel
INTC
|
+$4.74M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
+$4.67M |
Sector Composition
| 1 | Communication Services | 22.01% |
| 2 | Technology | 15.83% |
| 3 | Healthcare | 11.95% |
| 4 | Consumer Discretionary | 9.73% |
| 5 | Financials | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
601
Cencora
COR
$57.9B
| $133K | 0.01% |
+1,254
| New | +$133K |
|
602
Helix Energy Solutions
HLX
$914M
| $133K | 0.01% |
10,577
-2,200
| -17% | -$27.7K |
|
603
Mattel
MAT
$5.96B
| $132K | 0.01% |
5,151
+5,097
| +9,439% | +$131K |
|
604
ServiceNow
NOW
$195B
| $132K | 0.01% |
+1,778
| New | +$132K |
|
|
APU
605
DELISTED
AmeriGas Partners, L.P.
APU
| $132K | 0.01% |
2,906
+2,384
| +457% | +$108K |
|
606
ProShares VIX Mid-Term Futures ETF
VIXM
$41.1M
| $131K | 0.01% |
2,424
+2,376
| +4,950% | +$128K |
|
|
MIC
607
DELISTED
Macquarie Infrastructure Holdings, LLC
MIC
| $131K | 0.01% |
1,586
+1,322
| +501% | +$109K |
|
608
Hain Celestial
HAIN
$172M
| $130K | 0.01% |
1,989
+1,173
| +144% | +$76.7K |
|
609
iShares S&P 100 ETF
OEF
$22.3B
| $129K | 0.01% |
1,426
+1,300
| +1,032% | +$118K |
|
|
TSL
610
DELISTED
Trina Solar Limited
TSL
| $129K | 0.01% |
11,096
-3,817
| -26% | -$44.4K |
|
611
Credicorp
BAP
$20.9B
| $128K | 0.01% |
926
+299
| +48% | +$41.3K |
|
612
Cadence Design Systems
CDNS
$98.6B
| $128K | 0.01% |
+6,526
| New | +$128K |
|
|
OKS
613
DELISTED
Oneok Partners LP
OKS
| $128K | 0.01% |
3,791
+1,160
| +44% | +$39.2K |
|
614
Kohl's
KSS
$1.86B
| $127K | 0.01% |
2,042
-11,516
| -85% | -$716K |
|
615
Plains GP Holdings
PAGP
$3.64B
| $127K | 0.01% |
1,860
+1,846
| +13,186% | +$126K |
|
616
Pitney Bowes
PBI
$2.02B
| $127K | 0.01% |
6,125
+4,579
| +296% | +$94.9K |
|
617
State Street
STT
$31.7B
| $127K | 0.01% |
+1,651
| New | +$127K |
|
|
ARRS
618
DELISTED
ARRIS International plc Ordinary Shares
ARRS
| $127K | 0.01% |
+4,151
| New | +$127K |
|
619
Popular Inc
BPOP
$8.39B
| $126K | 0.01% |
4,398
+3,195
| +266% | +$91.5K |
|
620
Five Below
FIVE
$8.34B
| $126K | 0.01% |
3,190
-8,372
| -72% | -$331K |
|
621
ProShares Ultra Real Estate
URE
$59.5M
| $126K | 0.01% |
2,720
+2,482
| +1,043% | +$115K |
|
|
QEP
622
DELISTED
QEP RESOURCES, INC.
QEP
| $126K | 0.01% |
6,845
-7,816
| -53% | -$144K |
|
623
Agios Pharmaceuticals
AGIO
$2.1B
| $125K | 0.01% |
+1,130
| New | +$125K |
|
624
Smith & Nephew
SNN
$16.8B
| $125K | 0.01% |
+3,692
| New | +$125K |
|
|
AUTO
625
DELISTED
AutoWeb, Inc. Common Stock
AUTO
| $125K | 0.01% |
+7,841
| New | +$125K |
|