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 | |
|---|---|---|---|---|---|---|
951
Telus
TU
$24.4B
| $161K | ﹤0.01% |
+7,250
| New | +$161K |
|
|
WSR
952
Whitestone REIT
WSR
$670M
| $161K | ﹤0.01% |
15,056
-13,959
| -48% | -$149K |
|
|
OBSV
953
DELISTED
ObsEva SA Ordinary Shares
OBSV
| $161K | ﹤0.01% |
100,544
+39,247
| +64% | +$62.8K |
|
954
The RealReal
REAL
$1.08B
| $159K | ﹤0.01% |
64,074
+32,601
| +104% | +$80.9K |
|
955
Anterix
ATEX
$405M
| $157K | ﹤0.01% |
3,823
-5,696
| -60% | -$234K |
|
956
Principal Financial Group
PFG
$18.3B
| $157K | ﹤0.01% |
+2,353
| New | +$157K |
|
957
SPDR Portfolio S&P 500 High Dividend ETF
SPYD
$7.48B
| $157K | ﹤0.01% |
3,949
+937
| +31% | +$37.3K |
|
958
Alnylam Pharmaceuticals
ALNY
$61.4B
| $157K | ﹤0.01% |
+1,077
| New | +$157K |
|
959
Banco Bilbao Vizcaya Argentaria
BBVA
$110B
| $154K | ﹤0.01% |
+34,288
| New | +$154K |
|
960
Casey's General Stores
CASY
$20.6B
| $154K | ﹤0.01% |
834
-1,130
| -58% | -$209K |
|
961
Lucid Motors
LCID
$6.12B
| $154K | ﹤0.01% |
900
-30
| -3% | -$5.13K |
|
|
ERF
962
DELISTED
Enerplus Corporation
ERF
| $154K | ﹤0.01% |
11,668
-399
| -3% | -$5.27K |
|
963
Evolus
EOLS
$486M
| $153K | ﹤0.01% |
13,266
+375
| +3% | +$4.33K |
|
|
HUT
964
Hut 8
HUT
$3.37B
| $153K | ﹤0.01% |
23,061
-10,721
| -32% | -$71.1K |
|
965
ProShares UltraShort Energy
DUG
$10.6M
| $152K | ﹤0.01% |
+1,699
| New | +$152K |
|
|
JMIA
966
Jumia Technologies
JMIA
$1.19B
| $152K | ﹤0.01% |
25,221
+19,722
| +359% | +$119K |
|
967
Patria Investments
PAX
$2.31B
| $152K | ﹤0.01% |
11,520
+10,496
| +1,025% | +$138K |
|
968
Smart Sand
SND
$75.5M
| $152K | ﹤0.01% |
76,371
+74,581
| +4,167% | +$148K |
|
969
Snowflake
SNOW
$76.1B
| $152K | ﹤0.01% |
1,100
| – | – |
|
970
Invesco Solar ETF
TAN
$727M
| $152K | ﹤0.01% |
2,130
-42,025
| -95% | -$3M |
|
971
Warner Music
WMG
$17.8B
| $152K | ﹤0.01% |
+6,267
| New | +$152K |
|
|
LICY
972
DELISTED
Li-Cycle Holdings Corp.
LICY
| $152K | ﹤0.01% |
2,774
-8,319
| -75% | -$456K |
|
|
SLGC
973
DELISTED
SomaLogic, Inc. Class A Common Stock
SLGC
| $152K | ﹤0.01% |
33,635
+15,684
| +87% | +$70.9K |
|
974
ImmunityBio
IBRX
$2.45B
| $151K | ﹤0.01% |
40,852
+16,716
| +69% | +$61.8K |
|
|
HMTV
975
DELISTED
Hemisphere Media Group, Inc.
HMTV
| $151K | ﹤0.01% |
19,904
+19,813
| +21,773% | +$150K |
|