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 | |
|---|---|---|---|---|---|---|
|
MAPS
4726
DELISTED
WM TECHNOLOGY INC A
MAPS
| $181K | ﹤0.01% |
55,071
-125,668
| -70% | -$706K |
|
4727
CALL
Oceaneering
OII
$4.84B
| $181K | ﹤0.01% |
17,000
+5,600
| +49% | +$68.9K |
|
|
OLPX
4728
DELISTED
Olaplex Holdings
OLPX
| $181K | ﹤0.01% |
12,883
-28,563
| -69% | -$422K |
|
|
ORGN
4729
DELISTED
Origin Materials
ORGN
| $181K | ﹤0.01% |
1,183
+223
| +23% | +$42.5K |
|
|
SHOE
4730
PUT
Shoe Station Group
SHOE
$418M
| $181K | ﹤0.01% |
8,400
+5,900
| +236% | +$168K |
|
|
STKL
4731
PUT
DELISTED
SunOpta
STKL
| $181K | ﹤0.01% |
23,300
-3,900
| -14% | -$25.7K |
|
|
SEEL
4732
CALL
DELISTED
Seelos Therapeutics, Inc. Common Stock
SEEL
| $181K | ﹤0.01% |
69
+45
| +188% | +$117K |
|
|
SP
4733
DELISTED
SP Plus Corporation
SP
| $181K | ﹤0.01% |
5,923
+5,889
| +17,321% | +$178K |
|
4734
Corsair Gaming
CRSR
$1.11B
| $180K | ﹤0.01% |
13,770
-46,878
| -77% | -$765K |
|
4735
CALL
Delek Logistics
DKL
$3.19B
| $180K | ﹤0.01% |
3,700
-3,600
| -49% | -$182K |
|
4736
Goodyear
GT
$1.99B
| $180K | ﹤0.01% |
+16,837
| New | +$211K |
|
4737
ProPetro Holding
PUMP
$1.38B
| $180K | ﹤0.01% |
18,037
+11,465
| +174% | +$151K |
|
4738
PUT
Trupanion
TRUP
$1.06B
| $180K | ﹤0.01% |
3,000
-400
| -12% | -$27.2K |
|
|
BERY
4739
PUT
DELISTED
Berry Global Group, Inc.
BERY
| $180K | ﹤0.01% |
3,594
-653
| -15% | -$33.9K |
|
4740
PUT
Banco Macro
BMA
$5.97B
| $179K | ﹤0.01% |
16,000
-5,900
| -27% | -$87.7K |
|
4741
PUT
Bassett Furniture
BSET
$166M
| $179K | ﹤0.01% |
9,900
+7,600
| +330% | +$126K |
|
4742
Carter's
CRI
$1.42B
| $179K | ﹤0.01% |
2,553
+2,310
| +951% | +$186K |
|
|
LAND
4743
CALL
Gladstone Land Corp
LAND
$352M
| $179K | ﹤0.01% |
8,100
+100
| +1% | +$3.02K |
|
4744
PUT
Sarepta Therapeutics
SRPT
$1.59B
| $179K | ﹤0.01% |
2,400
-7,400
| -76% | -$544K |
|
4745
PUT
Vishay Intertechnology
VSH
$5.29B
| $179K | ﹤0.01% |
10,100
+1,100
| +12% | +$20.9K |
|
|
MKFG
4746
CALL
DELISTED
Markforged Holding Corporation
MKFG
| $179K | ﹤0.01% |
9,710
-2,510
| -21% | -$73.3K |
|
|
AMJ
4747
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
| $179K | ﹤0.01% |
9,491
+7,989
| +532% | +$168K |
|
4748
CALL
The Honest Company
HNST
$402M
| $178K | ﹤0.01% |
61,300
-34,600
| -36% | -$125K |
|
4749
PUT
Repligen
RGEN
$8.02B
| $178K | ﹤0.01% |
1,100
-300
| -21% | -$47.4K |
|
|
TGNA
4750
PUT
DELISTED
TEGNA Inc
TGNA
| $178K | ﹤0.01% |
8,500
+7,300
| +608% | +$158K |
|
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.