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 |
NVIDIA
NVDA
|
$29.3M |
| 2 |
Industrial Select Sector SPDR Fund
XLI
|
$23.1M |
| 3 |
iShares Russell 2000 ETF
IWM
|
$18M |
| 4 |
Netflix
NFLX
|
$17.4M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$14M |
Top Sells
| 1 |
Invesco QQQ Trust
QQQ
|
$120M |
| 2 |
SPDR S&P 500 ETF Trust
SPY
|
$41.3M |
| 3 |
Walt Disney
DIS
|
$26.9M |
| 4 |
Alphabet (Google) Class A
GOOGL
|
$13.8M |
| 5 |
Johnson & Johnson
JNJ
|
$11.3M |
Sector Composition
| 1 | Technology | 16.22% |
| 2 | Communication Services | 16.19% |
| 3 | Healthcare | 11.36% |
| 4 | Industrials | 9.74% |
| 5 | Consumer Discretionary | 8.61% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
201
Tenet Healthcare
THC
$17.3B
| $1.19M | ﹤0.01% |
57,648
+44,206
| +329% | +$913K |
|
202
iShares MSCI ACWI ETF
ACWI
$22.1B
| $1.18M | ﹤0.01% |
16,040
+10,551
| +192% | +$778K |
|
203
Texas Roadhouse
TXRH
$11.2B
| $1.18M | ﹤0.01% |
21,990
+15,281
| +228% | +$820K |
|
204
Medtronic
MDT
$119B
| $1.18M | ﹤0.01% |
12,103
-30,190
| -71% | -$2.94M |
|
205
NovoCure
NVCR
$1.37B
| $1.16M | ﹤0.01% |
+18,267
| New | +$1.16M |
|
206
VanEck JP Morgan EM Local Currency Bond ETF
EMLC
$3.7B
| $1.15M | ﹤0.01% |
33,093
-7,233
| -18% | -$251K |
|
207
Guidewire Software
GWRE
$22B
| $1.15M | ﹤0.01% |
11,318
-5,529
| -33% | -$560K |
|
208
Liberty Global Class A
LBTYA
$4.05B
| $1.12M | ﹤0.01% |
41,419
+10,870
| +36% | +$293K |
|
209
Foot Locker
FL
$2.29B
| $1.11M | ﹤0.01% |
26,362
+8,393
| +47% | +$352K |
|
210
Simon Property Group
SPG
$59.5B
| $1.1M | ﹤0.01% |
+6,882
| New | +$1.1M |
|
211
Signet Jewelers
SIG
$3.85B
| $1.1M | ﹤0.01% |
61,277
+50,867
| +489% | +$909K |
|
212
Charles Schwab
SCHW
$167B
| $1.09M | ﹤0.01% |
+27,166
| New | +$1.09M |
|
213
Hilton Grand Vacations
HGV
$4.15B
| $1.09M | ﹤0.01% |
34,227
+24,824
| +264% | +$790K |
|
214
Caesars Entertainment
CZR
$5.48B
| $1.09M | ﹤0.01% |
23,626
+15,601
| +194% | +$718K |
|
215
Fluor
FLR
$6.72B
| $1.09M | ﹤0.01% |
+32,287
| New | +$1.09M |
|
216
VICI Properties
VICI
$35.8B
| $1.09M | ﹤0.01% |
+49,341
| New | +$1.09M |
|
217
DaVita
DVA
$9.86B
| $1.09M | ﹤0.01% |
19,303
-15,837
| -45% | -$890K |
|
|
BERY
218
DELISTED
Berry Global Group, Inc.
BERY
| $1.08M | ﹤0.01% |
22,426
+10,592
| +90% | +$511K |
|
219
PPG Industries
PPG
$24.8B
| $1.08M | ﹤0.01% |
9,260
-6,052
| -40% | -$706K |
|
220
XPO
XPO
$15.4B
| $1.08M | ﹤0.01% |
54,049
+45,485
| +531% | +$909K |
|
221
abrdn Physical Gold Shares ETF
SGOL
$5.72B
| $1.08M | ﹤0.01% |
+79,340
| New | +$1.08M |
|
222
Outfront Media
OUT
$3.05B
| $1.07M | ﹤0.01% |
42,312
+37,735
| +824% | +$958K |
|
223
Arlo Technologies
ARLO
$1.89B
| $1.07M | ﹤0.01% |
266,784
+38,038
| +17% | +$152K |
|
224
Direxion Daily FTSE China Bull 3X Shares
YINN
$1.2B
| $1.07M | ﹤0.01% |
+2,497
| New | +$1.07M |
|
225
ProShares Short VIX Short-Term Futures ETF
SVXY
$250M
| $1.06M | ﹤0.01% |
39,466
+12,392
| +46% | +$334K |
|