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 |
Apple
AAPL
|
+$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$59.4M |
| 5 |
Intel
INTC
|
+$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 2 |
iShares Silver Trust
SLV
|
+$45.9M |
| 3 |
Ford
F
|
+$32.5M |
| 4 |
Exxon Mobil
XOM
|
+$20.4M |
| 5 |
Caterpillar
CAT
|
+$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
CCMP
1251
DELISTED
CMC Materials, Inc. Common Stock
CCMP
| $75K | ﹤0.01% |
433
-621
| -59% | -$108K |
|
1252
Acadia Pharmaceuticals
ACAD
$3.98B
| $74K | ﹤0.01% |
5,300
-11,800
| -69% | -$165K |
|
1253
Lloyds Banking Group
LYG
$67B
| $74K | ﹤0.01% |
36,394
-42,335
| -54% | -$86.1K |
|
1254
Sylvamo
SLVM
$1.75B
| $74K | ﹤0.01% |
+2,288
| New | +$74K |
|
|
ZY
1255
DELISTED
Zymergen Inc. Common Stock
ZY
| $74K | ﹤0.01% |
60,461
-20,290
| -25% | -$24.8K |
|
1256
Marathon Petroleum
MPC
$54.8B
| $73K | ﹤0.01% |
900
| – | – |
|
1257
Invesco Energy Exploration & Production ETF
PXE
$71.4M
| $73K | ﹤0.01% |
2,864
+1,971
| +221% | +$50.2K |
|
1258
Sea Limited
SE
$116B
| $73K | ﹤0.01% |
1,100
-163,847
| -99% | -$10.9M |
|
1259
ProShares Ultra Gold
UGL
$744M
| $73K | ﹤0.01% |
5,208
-44,484
| -90% | -$624K |
|
|
LHDX
1260
DELISTED
Lucira Health, Inc. Common Stock
LHDX
| $73K | ﹤0.01% |
39,532
-7,204
| -15% | -$13.3K |
|
1261
Brookfield Renewable
BEPC
$6.1B
| $72K | ﹤0.01% |
+2,048
| New | +$72K |
|
1262
CEL-SCI Corp
CVM
$70.5M
| $72K | ﹤0.01% |
537
+534
| +17,800% | +$71.6K |
|
1263
Eventbrite
EB
$262M
| $72K | ﹤0.01% |
7,070
+4,365
| +161% | +$44.5K |
|
|
UROY
1264
Uranium Royalty Corp
UROY
$420M
| $72K | ﹤0.01% |
32,077
-22,607
| -41% | -$50.7K |
|
1265
Brookdale Senior Living
BKD
$1.78B
| $71K | ﹤0.01% |
15,717
-13,385
| -46% | -$60.5K |
|
1266
Calix
CALX
$4.01B
| $71K | ﹤0.01% |
2,086
+1,330
| +176% | +$45.3K |
|
1267
WisdomTree US SmallCap Dividend Fund
DES
$1.9B
| $71K | ﹤0.01% |
+2,529
| New | +$71K |
|
1268
Energizer
ENR
$2.02B
| $71K | ﹤0.01% |
2,527
-12,184
| -83% | -$342K |
|
1269
Protolabs
PRLB
$1.18B
| $71K | ﹤0.01% |
1,491
-3,099
| -68% | -$148K |
|
|
BRT
1270
BRT Apartments
BRT
$290M
| $70K | ﹤0.01% |
3,282
-10,490
| -76% | -$224K |
|
1271
Castor Maritime
CTRM
$19.2M
| $70K | ﹤0.01% |
5,269
+1,564
| +42% | +$20.8K |
|
1272
Ironwood Pharmaceuticals
IRWD
$213M
| $70K | ﹤0.01% |
6,079
+5,865
| +2,741% | +$67.5K |
|
1273
United Airlines
UAL
$34.5B
| $70K | ﹤0.01% |
2,000
-516,610
| -100% | -$18.1M |
|
|
PSB
1274
DELISTED
PS Business Parks, Inc.
PSB
| $70K | ﹤0.01% |
+376
| New | +$70K |
|
1275
Direxion Daily Aerospace & Defense Bull 3X Shares
DFEN
$333M
| $69K | ﹤0.01% |
4,482
+365
| +9% | +$5.62K |
|