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 | |
|---|---|---|---|---|---|---|
7751
CALL
Torrid Holdings
CURV
$274M
| $17K | ﹤0.01% |
4,100
-3,300
| -45% | -$18.5K |
|
7752
CALL
Crane NXT
CXT
$2.99B
| $17K | ﹤0.01% |
576
-2,015
| -78% | -$67K |
|
7753
PUT
Endava
DAVA
$165M
| $17K | ﹤0.01% |
200
-2,900
| -94% | -$303K |
|
|
DPRO
7754
CALL
Draganfly
DPRO
$140M
| $17K | ﹤0.01% |
772
+332
| +75% | +$10.3K |
|
7755
PUT
Dyadic International
DYAI
$38.6M
| $17K | ﹤0.01% |
5,900
+5,000
| +556% | +$12.4K |
|
7756
CALL
Encore Capital Group
ECPG
$2.01B
| $17K | ﹤0.01% |
300
-200
| -40% | -$11.8K |
|
7757
Fluor
FLR
$6.54B
| $17K | ﹤0.01% |
710
-59,007
| -99% | -$1.59M |
|
7758
Genasys
GNSS
$76.5M
| $17K | ﹤0.01% |
5,365
+5,102
| +1,940% | +$16.4K |
|
7759
Amplify Online Retail ETF
IBUY
$112M
| $17K | ﹤0.01% |
414
-484
| -54% | -$24.7K |
|
|
IMMP
7760
PUT
Immutep
IMMP
$56.1M
| $17K | ﹤0.01% |
8,700
-1,200
| -12% | -$2.97K |
|
7761
PUT
Jones Lang LaSalle
JLL
$15.8B
| $17K | ﹤0.01% |
100
-6,600
| -99% | -$1.32M |
|
7762
KB Financial Group
KB
$39.5B
| $17K | ﹤0.01% |
474
-2,339
| -83% | -$106K |
|
7763
CALL
Martin Midstream Partners
MMLP
$93.5M
| $17K | ﹤0.01% |
4,500
| – | – |
|
|
NGD
7764
PUT
DELISTED
New Gold Inc
NGD
| $17K | ﹤0.01% |
15,900
-2,500
| -14% | -$3.58K |
|
|
NMG
7765
PUT
Nouveau Monde Graphite
NMG
$431M
| $17K | ﹤0.01% |
3,600
+3,200
| +800% | +$18.4K |
|
7766
NexGen Energy
NXE
$5.91B
| $17K | ﹤0.01% |
4,843
-182,223
| -97% | -$865K |
|
7767
PUT
Privia Health
PRVA
$3.04B
| $17K | ﹤0.01% |
600
-100,500
| -99% | -$2.56M |
|
7768
PUT
Prudential
PUK
$36.4B
| $17K | ﹤0.01% |
700
-2,200
| -76% | -$56.5K |
|
7769
CALL
Ultragenyx Pharmaceutical
RARE
$2.46B
| $17K | ﹤0.01% |
300
+100
| +50% | +$6.15K |
|
|
7770
PUT
Ultragenyx Pharmaceutical
RARE
$2.46B
| $17K | ﹤0.01% |
300
-2,000
| -87% | -$123K |
|
7771
CALL
Red Cat Holdings
RCAT
$1.03B
| $17K | ﹤0.01% |
8,500
-1,200
| -12% | -$2.38K |
|
7772
CALL
Regis Corp
RGS
$68.4M
| $17K | ﹤0.01% |
795
+565
| +246% | +$12.8K |
|
7773
CALL
Superior Group of Companies
SGC
$199M
| $17K | ﹤0.01% |
1,000
-300
| -23% | -$5.16K |
|
7774
CALL
Sotera Health
SHC
$5B
| $17K | ﹤0.01% |
900
+500
| +125% | +$10.5K |
|
7775
CALL
Shenandoah Telecom
SHEN
$678M
| $17K | ﹤0.01% |
800
+400
| +100% | +$9.04K |
|
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.