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 | |
|---|---|---|---|---|---|---|
7926
Baidu
BIDU
$35.7B
| $14K | ﹤0.01% |
100
-135,431
| -100% | -$17.9M |
|
7927
CALL
Bankunited
BKU
$3.33B
| $14K | ﹤0.01% |
400
-2,000
| -83% | -$79.2K |
|
7928
CALL
Civista Bancshares
CIVB
$608M
| $14K | ﹤0.01% |
700
-1,400
| -67% | -$30.3K |
|
7929
PUT
Corcept Therapeutics
CORT
$9.98B
| $14K | ﹤0.01% |
600
+100
| +20% | +$2.18K |
|
7930
Culp Inc
CULP
$45.2M
| $14K | ﹤0.01% |
3,261
+2,003
| +159% | +$12.3K |
|
7931
PUT
Consolidated Water Co
CWCO
$472M
| $14K | ﹤0.01% |
1,000
-1,700
| -63% | -$21.1K |
|
7932
PUT
DiaMedica Therapeutics
DMAC
$341M
| $14K | ﹤0.01% |
7,100
-2,900
| -29% | -$6.77K |
|
7933
PUT
DT Midstream
DTM
$13.9B
| $14K | ﹤0.01% |
300
+100
| +50% | +$5.46K |
|
7934
Emcor
EME
$29.9B
| $14K | ﹤0.01% |
143
+49
| +52% | +$5.24K |
|
|
EMX
7935
DELISTED
EMX Royalty
EMX
| $14K | ﹤0.01% |
7,584
+5,244
| +224% | +$10.5K |
|
7936
CALL
Enlivex Ltd
ENLV
$37.9M
| $14K | ﹤0.01% |
207
-13
| -6% | -$1.01K |
|
7937
CALL
Ero Copper
ERO
$2.64B
| $14K | ﹤0.01% |
+1,700
| New | +$21.2K |
|
7938
PUT
Vertical Aerospace
EVTL
$154M
| $14K | ﹤0.01% |
460
-190
| -29% | -$11.4K |
|
7939
PUT
First Trust Morningstar Dividend Leaders Index Fund
FDL
$7.89B
| $14K | ﹤0.01% |
400
+300
| +300% | +$11.2K |
|
7940
CALL
First Trust Water ETF
FIW
$1.87B
| $14K | ﹤0.01% |
200
-1,100
| -85% | -$84.2K |
|
7941
PUT
Flotek Industries
FTK
$789M
| $14K | ﹤0.01% |
2,367
-9,583
| -80% | -$72.3K |
|
7942
CALL
Genasys
GNSS
$76.5M
| $14K | ﹤0.01% |
4,400
-14,100
| -76% | -$45.2K |
|
7943
PUT
Goldman Sachs ActiveBeta International Equity ETF
GSIE
$5.9B
| $14K | ﹤0.01% |
+200
| New | +$6.06K |
|
7944
Goldman Sachs Future Tech Leaders Equity ETF
GTEK
$212M
| $14K | ﹤0.01% |
647
+547
| +547% | +$14.2K |
|
7945
Heartland Express
HTLD
$1.01B
| $14K | ﹤0.01% |
1,026
-1,545
| -60% | -$21.3K |
|
7946
PUT
IAMGOLD
IAG
$8.05B
| $14K | ﹤0.01% |
9,100
-7,800
| -46% | -$19.6K |
|
|
JBGS
7947
CALL
JBG SMITH
JBGS
$846M
| $14K | ﹤0.01% |
600
| – | – |
|
|
JBGS
7948
PUT
JBG SMITH
JBGS
$846M
| $14K | ﹤0.01% |
600
+400
| +200% | +$10.3K |
|
7949
Lemonade
LMND
$3.66B
| $14K | ﹤0.01% |
800
| – | – |
|
7950
CALL
Comstock
LODE
$206M
| $14K | ﹤0.01% |
2,400
-1,900
| -44% | -$19K |
|
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.