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 | |
|---|---|---|---|---|---|---|
|
AFCG
7126
PUT
AFC Gamma
AFCG
$61.4M
| $30K | ﹤0.01% |
2,922
+2,338
| +400% | +$27.4K |
|
7127
CALL
Amneal Pharmaceuticals
AMRX
$5.85B
| $30K | ﹤0.01% |
9,700
+3,500
| +56% | +$12.7K |
|
|
7128
PUT
Amneal Pharmaceuticals
AMRX
$5.85B
| $30K | ﹤0.01% |
9,700
-222,100
| -96% | -$805K |
|
7129
Axos Financial
AX
$5.77B
| $30K | ﹤0.01% |
839
-1,664
| -66% | -$64K |
|
7130
PUT
Brookfield Infrastructure Partners
BIP
$19.2B
| $30K | ﹤0.01% |
800
-700
| -47% | -$28.8K |
|
7131
PUT
Broadstone Net Lease
BNL
$4.11B
| $30K | ﹤0.01% |
1,500
-200
| -12% | -$4.18K |
|
7132
PUT
BOK Financial
BOKF
$8.58B
| $30K | ﹤0.01% |
400
+300
| +300% | +$25.3K |
|
|
DAO
7133
PUT
Youdao
DAO
$2.03B
| $30K | ﹤0.01% |
6,300
+4,600
| +271% | +$27.4K |
|
7134
StealthGas
GASS
$332M
| $30K | ﹤0.01% |
9,362
-2,603
| -22% | -$7.27K |
|
7135
CALL
Gentex
GNTX
$4.97B
| $30K | ﹤0.01% |
1,100
-28,900
| -96% | -$841K |
|
7136
CALL
Gold Royalty Corp
GROY
$600M
| $30K | ﹤0.01% |
13,500
+9,200
| +214% | +$30.9K |
|
|
HDSN
7137
PUT
Hudson Technologies
HDSN
$254M
| $30K | ﹤0.01% |
4,100
-4,200
| -51% | -$34.7K |
|
7138
CALL
iHeartMedia
IHRT
$543M
| $30K | ﹤0.01% |
3,900
+2,700
| +225% | +$36.4K |
|
7139
Renaissance IPO ETF
IPO
$153M
| $30K | ﹤0.01% |
+1,019
| New | +$34.4K |
|
7140
CALL
InvenTrust Properties
IVT
$2.76B
| $30K | ﹤0.01% |
1,200
+100
| +9% | +$2.93K |
|
7141
Kirby Corp
KEX
$7.01B
| $30K | ﹤0.01% |
496
-1,195
| -71% | -$77.8K |
|
7142
Karyopharm Therapeutics
KPTI
$43.5M
| $30K | ﹤0.01% |
+458
| New | +$42K |
|
7143
CALL
Kontoor Brands
KTB
$4.63B
| $30K | ﹤0.01% |
900
-2,300
| -72% | -$89.3K |
|
7144
PUT
MiMedx Group
MDXG
$602M
| $30K | ﹤0.01% |
8,900
+6,600
| +287% | +$25.8K |
|
7145
CALL
Ramaco Resources Class A
METC
$599M
| $30K | ﹤0.01% |
2,377
-18,708
| -89% | -$281K |
|
7146
Old National Bancorp
ONB
$10.2B
| $30K | ﹤0.01% |
+2,047
| New | +$31.5K |
|
|
PHX
7147
DELISTED
PHX Minerals
PHX
| $30K | ﹤0.01% |
+9,919
| New | +$34.8K |
|
7148
CALL
Park Aerospace
PKE
$737M
| $30K | ﹤0.01% |
2,400
+1,200
| +100% | +$14.7K |
|
7149
CALL
Praxis Precision Medicines
PRAX
$8.58B
| $30K | ﹤0.01% |
827
+574
| +227% | +$61.3K |
|
|
7150
PUT
Praxis Precision Medicines
PRAX
$8.58B
| $30K | ﹤0.01% |
+840
| New | +$89.7K |
|
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.