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 | |
|---|---|---|---|---|---|---|
|
BRY
5201
PUT
DELISTED
Berry Corp
BRY
| $129K | ﹤0.01% |
17,000
-1,800
| -10% | -$19K |
|
5202
Celularity
CELU
$18.4M
| $129K | ﹤0.01% |
3,806
+3,801
| +76,020% | +$309K |
|
5203
PUT
Castor Maritime
CTRM
$18.8M
| $129K | ﹤0.01% |
9,640
-410
| -4% | -$7.59K |
|
5204
CALL
LPL Financial
LPLA
$28.3B
| $129K | ﹤0.01% |
700
-8,200
| -92% | -$1.56M |
|
5205
Maravai LifeSciences
MRVI
$969M
| $129K | ﹤0.01% |
4,550
+4,193
| +1,175% | +$133K |
|
5206
PUT
Navigator Holdings
NVGS
$1.38B
| $129K | ﹤0.01% |
11,500
-1,400
| -11% | -$18.1K |
|
5207
CALL
Kartoon Studios
TOON
$35.2M
| $129K | ﹤0.01% |
17,170
-2,300
| -12% | -$17.6K |
|
5208
PUT
Zimmer Biomet
ZBH
$18.2B
| $129K | ﹤0.01% |
1,800
-46,500
| -96% | -$5.52M |
|
|
EQC
5209
PUT
DELISTED
Equity Commonwealth
EQC
| $129K | ﹤0.01% |
4,700
-3,600
| -43% | -$97.2K |
|
|
CIR
5210
PUT
DELISTED
CIRCOR International, Inc
CIR
| $129K | ﹤0.01% |
7,900
+2,000
| +34% | +$40K |
|
|
AJRD
5211
CALL
DELISTED
Aerojet Rocketdyne Holdings
AJRD
| $129K | ﹤0.01% |
3,200
-3,600
| -53% | -$146K |
|
5212
CALL
B2Gold
BTG
$5B
| $128K | ﹤0.01% |
38,000
-16,100
| -30% | -$67.2K |
|
5213
PUT
Cricut
CRCT
$984M
| $128K | ﹤0.01% |
21,000
-19,900
| -49% | -$196K |
|
5214
Invesco DB Base Metals Fund
DBB
$312M
| $128K | ﹤0.01% |
6,625
-8,157
| -55% | -$189K |
|
5215
PUT
Encompass Health
EHC
$11B
| $128K | ﹤0.01% |
2,891
-64,861
| -96% | -$3.33M |
|
5216
CALL
Energy Recovery
ERII
$446M
| $128K | ﹤0.01% |
6,600
+600
| +10% | +$11.6K |
|
5217
PUT
Fluence Energy
FLNC
$1.85B
| $128K | ﹤0.01% |
13,600
-5,400
| -28% | -$52.6K |
|
5218
Liberty Media Series C
FWONK
$24.6B
| $128K | ﹤0.01% |
2,091
+1,845
| +750% | +$113K |
|
5219
CALL
Lloyds Banking Group
LYG
$89.5B
| $128K | ﹤0.01% |
62,900
+400
| +0.6% | +$883 |
|
5220
PUT
NewtekOne
NEWT
$428M
| $128K | ﹤0.01% |
6,800
-1,900
| -22% | -$45.6K |
|
5221
Quince Therapeutics
QNCX
$22.9M
| $128K | ﹤0.01% |
+290
| New | +$205K |
|
5222
PUT
Essential Utilities
WTRG
$11.3B
| $128K | ﹤0.01% |
2,800
+1,600
| +133% | +$74.3K |
|
|
ROIC
5223
DELISTED
Retail Opportunity Investments Corp.
ROIC
| $128K | ﹤0.01% |
+8,155
| New | +$145K |
|
|
USAK
5224
CALL
DELISTED
USA Truck Inc
USAK
| $128K | ﹤0.01% |
4,100
+3,100
| +310% | +$53.4K |
|
|
DOC
5225
DELISTED
PHYSICIANS REALTY TRUST
DOC
| $128K | ﹤0.01% |
+7,351
| New | +$130K |
|
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.