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 | |
|---|---|---|---|---|---|---|
7651
CALL
Erie Indemnity
ERIE
$12.2B
| $19K | ﹤0.01% |
100
| – | – |
|
|
7652
PUT
Erie Indemnity
ERIE
$12.2B
| $19K | ﹤0.01% |
100
| – | – |
|
7653
iShares MSCI Switzerland ETF
EWL
$2.21B
| $19K | ﹤0.01% |
467
+300
| +180% | +$13.5K |
|
7654
PUT
Genesco
GCO
$429M
| $19K | ﹤0.01% |
400
-5,100
| -93% | -$306K |
|
7655
PUT
Griffon
GFF
$4.03B
| $19K | ﹤0.01% |
700
+400
| +133% | +$10.1K |
|
7656
Gates Industrial Corporation Ltd.
GTES
$6.53B
| $19K | ﹤0.01% |
+1,816
| New | +$22.7K |
|
7657
Ingles Markets
IMKTA
$1.7B
| $19K | ﹤0.01% |
228
-2,496
| -92% | -$227K |
|
|
JAMF
7658
PUT
DELISTED
Jamf
JAMF
| $19K | ﹤0.01% |
800
-2,000
| -71% | -$56.1K |
|
7659
KBR
KBR
$4.36B
| $19K | ﹤0.01% |
394
-1,842
| -82% | -$91K |
|
7660
PUT
KT
KT
$8.8B
| $19K | ﹤0.01% |
1,400
+1,300
| +1,300% | +$18.7K |
|
7661
CALL
KULR Technology Group
KULR
$120M
| $19K | ﹤0.01% |
1,588
+913
| +135% | +$12.2K |
|
7662
PUT
Luxfer Holdings
LXFR
$455M
| $19K | ﹤0.01% |
+1,300
| New | +$21K |
|
|
ORIO
7663
PUT
Orion Digital Corp
ORIO
$15.2M
| $19K | ﹤0.01% |
7,533
-1,300
| -15% | -$6.18K |
|
|
MREO
7664
CALL
Mereo BioPharma
MREO
$50.3M
| $19K | ﹤0.01% |
17,300
+16,100
| +1,342% | +$12.5K |
|
7665
PUT
National Fuel Gas
NFG
$7.84B
| $19K | ﹤0.01% |
300
-700
| -70% | -$49.1K |
|
7666
Pluri
PLUR
$16.8M
| $19K | ﹤0.01% |
+2,009
| New | +$24.7K |
|
7667
PUT
PMV Pharmaceuticals
PMVP
$60.3M
| $19K | ﹤0.01% |
1,400
-3,100
| -69% | -$45.1K |
|
|
PTPI
7668
DELISTED
Petros Pharmaceuticals
PTPI
| $19K | ﹤0.01% |
93
+53
| +133% | +$13.3K |
|
|
RPTX
7669
CALL
DELISTED
Repare Therapeutics
RPTX
| $19K | ﹤0.01% |
+1,400
| New | +$16.5K |
|
7670
PUT
Ryan Specialty Holdings
RYAN
$5.71B
| $19K | ﹤0.01% |
500
-1,100
| -69% | -$41.6K |
|
7671
PUT
Safety Insurance
SAFT
$1.52B
| $19K | ﹤0.01% |
200
| – | – |
|
7672
CALL
Spruce Power Holding Corp
SPRU
$35.8M
| $19K | ﹤0.01% |
2,125
-3,100
| -59% | -$35.7K |
|
7673
PUT
Sportradar
SRAD
$4.35B
| $19K | ﹤0.01% |
2,500
-4,700
| -65% | -$51.4K |
|
7674
PUT
Unisys
UIS
$230M
| $19K | ﹤0.01% |
1,600
-900
| -36% | -$12.7K |
|
7675
PUT
Veracyte
VCYT
$4.77B
| $19K | ﹤0.01% |
1,000
-23,300
| -96% | -$471K |
|
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.