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 | |
|---|---|---|---|---|---|---|
1001
ScottsMiracle-Gro
SMG
$3.56B
| $143K | ﹤0.01% |
+1,815
| New | +$143K |
|
1002
Zevra Therapeutics
ZVRA
$448M
| $143K | ﹤0.01% |
32,282
-3,863
| -11% | -$17.1K |
|
|
NTBL
1003
DELISTED
Notable Labs, Ltd. Ordinary Shares
NTBL
| $143K | ﹤0.01% |
+2,552
| New | +$143K |
|
1004
CRISPR Therapeutics
CRSP
$5.08B
| $142K | ﹤0.01% |
2,340
-14,298
| -86% | -$868K |
|
1005
Sutro Biopharma
STRO
$77.2M
| $142K | ﹤0.01% |
27,402
+26,999
| +6,700% | +$140K |
|
|
IRNT
1006
DELISTED
IronNet, Inc.
IRNT
| $142K | ﹤0.01% |
64,591
+42,924
| +198% | +$94.4K |
|
1007
CarGurus
CARG
$3.51B
| $141K | ﹤0.01% |
6,596
+2,543
| +63% | +$54.4K |
|
1008
Gaotu Techedu
GOTU
$889M
| $141K | ﹤0.01% |
72,441
+24,547
| +51% | +$47.8K |
|
|
REV
1009
DELISTED
Revlon, Inc.
REV
| $141K | ﹤0.01% |
26,086
+13,299
| +104% | +$71.9K |
|
1010
Blackbaud
BLKB
$3.33B
| $140K | ﹤0.01% |
+2,418
| New | +$140K |
|
1011
Amplitude
AMPL
$1.5B
| $139K | ﹤0.01% |
9,790
-13,476
| -58% | -$191K |
|
1012
PagSeguro Digital
PAGS
$2.77B
| $139K | ﹤0.01% |
13,624
+7,432
| +120% | +$75.8K |
|
1013
PolyPid
PYPD
$54.8M
| $139K | ﹤0.01% |
1,005
+357
| +55% | +$49.4K |
|
|
CHIX
1014
DELISTED
Global X MSCI China Financials ETF
CHIX
| $139K | ﹤0.01% |
10,251
+9,868
| +2,577% | +$134K |
|
1015
Coursera
COUR
$1.78B
| $138K | ﹤0.01% |
+9,734
| New | +$138K |
|
|
LAND
1016
Gladstone Land Corp
LAND
$321M
| $138K | ﹤0.01% |
6,253
-1,733
| -22% | -$38.2K |
|
1017
TD Synnex
SNX
$12.5B
| $138K | ﹤0.01% |
+1,515
| New | +$138K |
|
|
PTR
1018
DELISTED
PETROCHINA COMPANY LIMITED ADS (REP 100 H SHARES)
PTR
| $138K | ﹤0.01% |
2,977
-7,846
| -72% | -$364K |
|
|
CNR
1019
DELISTED
Cornerstone Building Brands, Inc.
CNR
| $138K | ﹤0.01% |
+5,666
| New | +$138K |
|
|
AZEK
1020
DELISTED
The AZEK Co
AZEK
| $137K | ﹤0.01% |
+8,216
| New | +$137K |
|
1021
Atlanta Braves Holdings Series B
BATRK
$2.62B
| $137K | ﹤0.01% |
5,721
+5,222
| +1,046% | +$125K |
|
1022
iShares Gold Trust
IAU
$53.4B
| $137K | ﹤0.01% |
3,995
+2,973
| +291% | +$102K |
|
1023
VanEck Rare Earth/Strategic Metals ETF
REMX
$732M
| $137K | ﹤0.01% |
1,579
-880
| -36% | -$76.4K |
|
1024
CommScope
COMM
$3.67B
| $136K | ﹤0.01% |
22,353
-24,488
| -52% | -$149K |
|
1025
Invesco S&P SmallCap Energy ETF
PSCE
$58.5M
| $136K | ﹤0.01% |
3,142
-7,554
| -71% | -$327K |
|