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
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
6451
CALL
Aehr Test Systems
AEHR
$2.61B
| $51K | ﹤0.01% |
6,800
-69,300
| -91% | -$576K |
|
|
GOLD
6452
PUT
Gold.com Inc
GOLD
$1.2B
| $51K | ﹤0.01% |
1,600
+1,200
| +300% | +$43.1K |
|
6453
CALL
Cars.com
CARS
$662M
| $51K | ﹤0.01% |
5,500
+900
| +20% | +$9.72K |
|
6454
Cellebrite
CLBT
$3.68B
| $51K | ﹤0.01% |
10,044
+8,008
| +393% | +$41.7K |
|
|
CLPR
6455
Clipper Realty
CLPR
$45.2M
| $51K | ﹤0.01% |
6,646
-20,022
| -75% | -$172K |
|
|
CRESY
6456
CALL
Cresud
CRESY
$795M
| $51K | ﹤0.01% |
10,617
-936
| -8% | -$6.24K |
|
6457
PUT
Evolution Petroleum
EPM
$132M
| $51K | ﹤0.01% |
9,500
+8,700
| +1,088% | +$58.5K |
|
6458
PUT
Fortis
FTS
$29B
| $51K | ﹤0.01% |
1,100
-2,600
| -70% | -$127K |
|
6459
CALL
Gilat Satellite Networks
GILT
$834M
| $51K | ﹤0.01% |
8,600
-1,200
| -12% | -$8.39K |
|
|
6460
PUT
Gilat Satellite Networks
GILT
$834M
| $51K | ﹤0.01% |
8,500
-9,500
| -53% | -$66.5K |
|
6461
CALL
FerroAtlántica
GSM
$594M
| $51K | ﹤0.01% |
8,700
-1,600
| -16% | -$11.2K |
|
6462
PUT
InvenTrust Properties
IVT
$2.76B
| $51K | ﹤0.01% |
2,000
+1,900
| +1,900% | +$55.6K |
|
6463
iShares US Financials ETF
IYF
$4.67B
| $51K | ﹤0.01% |
738
| – | – |
|
6464
PUT
MKS Inc
MKSI
$20.1B
| $51K | ﹤0.01% |
500
-26,800
| -98% | -$3.12M |
|
6465
PUT
NGL Energy Partners
NGL
$2.05B
| $51K | ﹤0.01% |
33,900
-27,800
| -45% | -$54.6K |
|
|
NINE
6466
CALL
DELISTED
Nine Energy Service
NINE
| $51K | ﹤0.01% |
19,500
-67,300
| -78% | -$203K |
|
6467
State Street SPDR Portfolio Intermediate Term Treasury ETF
SPTI
$10.4B
| $51K | ﹤0.01% |
1,750
+1,680
| +2,400% | +$49.6K |
|
6468
ProShares VIX Mid-Term Futures ETF
VIXM
$55.9M
| $51K | ﹤0.01% |
+1,463
| New | +$50.3K |
|
6469
PUT
Varex Imaging
VREX
$472M
| $51K | ﹤0.01% |
+2,400
| New | +$51K |
|
6470
CALL
X4 Pharmaceuticals
XFOR
$375M
| $51K | ﹤0.01% |
1,773
-7,804
| -81% | -$297K |
|
|
LUCK
6471
Lucky Strike Entertainment
LUCK
$914M
| $51K | ﹤0.01% |
+4,881
| New | +$51.9K |
|
|
SHCR
6472
PUT
DELISTED
Sharecare, Inc. Class A Common Stock
SHCR
| $51K | ﹤0.01% |
32,400
-44,000
| -58% | -$108K |
|
|
ASXC
6473
CALL
DELISTED
Asensus Surgical, Inc.
ASXC
| $51K | ﹤0.01% |
129,800
-31,900
| -20% | -$14.2K |
|
|
VZIO
6474
PUT
DELISTED
VIZIO Holding Corp.
VZIO
| $51K | ﹤0.01% |
7,600
+4,100
| +117% | +$33.5K |
|
|
AMRN
6475
Amarin Corp
AMRN
$299M
| $50K | ﹤0.01% |
1,686
-1,765
| -51% | -$76.1K |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.