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 |
Alibaba
BABA
|
+$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$97.6M |
| 3 |
Walt Disney
DIS
|
+$73.4M |
| 4 |
Citigroup
C
|
+$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$149M |
| 2 |
Amazon
AMZN
|
+$107M |
| 3 |
SPDR Gold Trust
GLD
|
+$58.6M |
| 4 |
Coinbase
COIN
|
+$56.5M |
| 5 |
NVIDIA
NVDA
|
+$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
551
Commault Systems
CVLT
$7.84B
| $670K | ﹤0.01% |
8,399
+5,270
| +168% | +$420K |
|
552
Century Aluminum
CENX
$2.09B
| $669K | ﹤0.01% |
55,166
+46,565
| +541% | +$565K |
|
553
Choice Hotels
CHH
$5.2B
| $669K | ﹤0.01% |
+5,906
| New | +$669K |
|
554
Dentsply Sirona
XRAY
$2.73B
| $659K | ﹤0.01% |
18,522
+8,415
| +83% | +$299K |
|
|
SAVE
555
DELISTED
Spirit Airlines, Inc.
SAVE
| $656K | ﹤0.01% |
+40,077
| New | +$656K |
|
556
Regal Rexnord
RRX
$9.39B
| $655K | ﹤0.01% |
+4,430
| New | +$655K |
|
557
SPDR Portfolio S&P 600 Small Cap ETF
SPSM
$12.7B
| $654K | ﹤0.01% |
+15,514
| New | +$654K |
|
558
RCI Hospitality Holdings
RICK
$295M
| $650K | ﹤0.01% |
9,816
+8,432
| +609% | +$558K |
|
559
Upwork
UPWK
$2.11B
| $642K | ﹤0.01% |
43,178
+40,885
| +1,783% | +$608K |
|
|
BORR
560
Borr Drilling
BORR
$884M
| $639K | ﹤0.01% |
86,827
+73,190
| +537% | +$539K |
|
561
Capital Southwest
CSWC
$1.26B
| $636K | ﹤0.01% |
26,844
+25,502
| +1,900% | +$604K |
|
562
MINISO
MNSO
$7.73B
| $636K | ﹤0.01% |
+31,218
| New | +$636K |
|
563
PagerDuty
PD
$1.49B
| $635K | ﹤0.01% |
27,450
+24,919
| +985% | +$576K |
|
564
Arcos Dorados Holdings
ARCO
$1.47B
| $634K | ﹤0.01% |
+50,025
| New | +$634K |
|
565
Okta
OKTA
$15.9B
| $633K | ﹤0.01% |
+6,997
| New | +$633K |
|
566
ProShares Ultra Semiconductors
USD
$1.49B
| $633K | ﹤0.01% |
23,290
+3,372
| +17% | +$91.6K |
|
567
Cipher Mining
CIFR
$4.03B
| $632K | ﹤0.01% |
153,207
+28,538
| +23% | +$118K |
|
568
Molina Healthcare
MOH
$9.71B
| $631K | ﹤0.01% |
1,747
+230
| +15% | +$83.1K |
|
569
New Fortress Energy
NFE
$376M
| $631K | ﹤0.01% |
16,731
+14,620
| +693% | +$551K |
|
570
Moody's
MCO
$90.8B
| $629K | ﹤0.01% |
1,612
+264
| +20% | +$103K |
|
571
Plug Power
PLUG
$1.66B
| $625K | ﹤0.01% |
138,895
+32,492
| +31% | +$146K |
|
572
Wheaton Precious Metals
WPM
$47.9B
| $623K | ﹤0.01% |
12,636
-21,386
| -63% | -$1.05M |
|
573
Coca-Cola Europacific Partners
CCEP
$40.3B
| $621K | ﹤0.01% |
9,317
+7,597
| +442% | +$506K |
|
574
Mr. Cooper
COOP
$14B
| $617K | ﹤0.01% |
9,488
-6,964
| -42% | -$453K |
|
575
NCR Atleos
NATL
$2.85B
| $617K | ﹤0.01% |
+25,408
| New | +$617K |
|