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 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$32.1M |
| 2 |
PARA
Paramount Global Class B
PARA
|
$23.3M |
| 3 |
Pinduoduo
PDD
|
$17.3M |
| 4 |
Pfizer
PFE
|
$16.8M |
| 5 |
American Airlines Group
AAL
|
$14.5M |
Top Sells
| 1 |
Amazon
AMZN
|
$64.4M |
| 2 |
Alphabet (Google) Class C
GOOG
|
$38.1M |
| 3 |
AutoZone
AZO
|
$32.2M |
| 4 |
SPDR S&P 500 ETF Trust
SPY
|
$25.3M |
| 5 |
Apple
AAPL
|
$22.5M |
Sector Composition
| 1 | Technology | 20.25% |
| 2 | Consumer Discretionary | 15.22% |
| 3 | Healthcare | 10.03% |
| 4 | Financials | 9.2% |
| 5 | Industrials | 9.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
251
C3.ai
AI
$2.15B
| $1.68M | ﹤0.01% |
25,537
+23,300
| +1,042% | +$1.54M |
|
252
Teucrium Soybean Fund
SOYB
$25.3M
| $1.68M | ﹤0.01% |
+77,867
| New | +$1.68M |
|
253
Pan American Silver
PAAS
$12.4B
| $1.68M | ﹤0.01% |
56,032
-18,010
| -24% | -$541K |
|
254
CommScope
COMM
$3.57B
| $1.67M | ﹤0.01% |
+109,011
| New | +$1.67M |
|
255
iQIYI
IQ
$2.62B
| $1.67M | ﹤0.01% |
100,739
-75,332
| -43% | -$1.25M |
|
256
S&P Global
SPGI
$163B
| $1.67M | ﹤0.01% |
+4,740
| New | +$1.67M |
|
257
Vishay Intertechnology
VSH
$2.09B
| $1.67M | ﹤0.01% |
69,299
+50,517
| +269% | +$1.22M |
|
258
Lennar Class A
LEN
$36.6B
| $1.66M | ﹤0.01% |
16,924
+361
| +2% | +$35.4K |
|
259
Direxion Daily Regional Banks Bull 3X Shares
DPST
$741M
| $1.63M | ﹤0.01% |
3,520
+1,973
| +128% | +$914K |
|
260
Generation Bio
GBIO
$39.2M
| $1.59M | ﹤0.01% |
+5,603
| New | +$1.59M |
|
261
Invesco CurrencyShares Euro Currency Trust
FXE
$530M
| $1.59M | ﹤0.01% |
14,471
-20,497
| -59% | -$2.25M |
|
262
Sibanye-Stillwater
SBSW
$6.02B
| $1.58M | ﹤0.01% |
88,504
+80,767
| +1,044% | +$1.44M |
|
|
VEDL
263
DELISTED
Vedanta Limited American Depostary Shares (Each representing four equity shares)
VEDL
| $1.57M | ﹤0.01% |
125,282
+103,159
| +466% | +$1.3M |
|
264
Roundhill Video Games ETF
NERD
$25.8M
| $1.57M | ﹤0.01% |
49,175
+27,358
| +125% | +$872K |
|
265
Macy's
M
$4.62B
| $1.57M | ﹤0.01% |
96,790
+89,490
| +1,226% | +$1.45M |
|
266
Darden Restaurants
DRI
$24.5B
| $1.56M | ﹤0.01% |
11,021
-28,298
| -72% | -$4.02M |
|
267
ArcBest
ARCB
$1.71B
| $1.56M | ﹤0.01% |
+22,199
| New | +$1.56M |
|
268
Virgin Galactic
SPCE
$177M
| $1.55M | ﹤0.01% |
2,534
+2,212
| +687% | +$1.35M |
|
269
MP Materials
MP
$11B
| $1.55M | ﹤0.01% |
+43,038
| New | +$1.55M |
|
270
KB Home
KBH
$4.57B
| $1.54M | ﹤0.01% |
+33,132
| New | +$1.54M |
|
271
Amicus Therapeutics
FOLD
$2.48B
| $1.53M | ﹤0.01% |
154,777
+113,246
| +273% | +$1.12M |
|
272
The SPAC and New Issue ETF
SPCX
$9.22M
| $1.52M | ﹤0.01% |
+53,448
| New | +$1.52M |
|
273
Roundhill Sports Betting & iGaming ETF
BETZ
$84.1M
| $1.52M | ﹤0.01% |
49,385
-25,224
| -34% | -$776K |
|
|
MCFE
274
DELISTED
McAfee Corp. Class A Common Stock
MCFE
| $1.52M | ﹤0.01% |
66,877
+58,565
| +705% | +$1.33M |
|
275
eHealth
EHTH
$122M
| $1.52M | ﹤0.01% |
20,875
+13,721
| +192% | +$998K |
|