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
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.67% |
| 2 | Consumer Discretionary | 0.37% |
| 3 | Industrials | 0.24% |
| 4 | Healthcare | 0.22% |
| 5 | Financials | 0.19% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1801
CALL
Builders FirstSource
BLDR
$7.84B
| $2.67M | ﹤0.01% |
41,400
-21,000
| -34% | -$1.52M |
|
1802
Sprott Uranium Miners ETF
URNM
$1.78B
| $2.67M | ﹤0.01% |
64,222
+21,138
| +49% | +$777K |
|
1803
Unilever
UL
$131B
| $2.67M | ﹤0.01% |
52,089
+4,709
| +10% | +$262K |
|
|
LICY
1804
CALL
DELISTED
Li-Cycle Holdings Corp.
LICY
| $2.67M | ﹤0.01% |
39,488
+32,088
| +434% | +$2.04M |
|
|
AZUL
1805
CALL
DELISTED
Azul
AZUL
| $2.67M | ﹤0.01% |
177,100
+127,800
| +259% | +$1.83M |
|
|
SI
1806
PUT
DELISTED
Silvergate Capital Corporation
SI
| $2.67M | ﹤0.01% |
17,700
-16,300
| -48% | -$2.02M |
|
1807
CALL
RUM Group Inc
RUM
$1.57B
| $2.66M | ﹤0.01% |
224,300
+184,500
| +464% | +$2.29M |
|
1808
PUT
Navios Maritime Partners
NMM
$2.25B
| $2.66M | ﹤0.01% |
75,600
-36,300
| -32% | -$1.1M |
|
1809
Newmont
NEM
$98.2B
| $2.66M | ﹤0.01% |
33,475
-120,523
| -78% | -$8.15M |
|
1810
PUT
Annaly Capital Management
NLY
$16.9B
| $2.66M | ﹤0.01% |
94,375
+68,850
| +270% | +$2.05M |
|
1811
PUT
Markel Group
MKL
$25B
| $2.65M | ﹤0.01% |
1,800
+1,300
| +260% | +$1.68M |
|
1812
InMode
INMD
$872M
| $2.65M | ﹤0.01% |
71,811
+58,134
| +425% | +$2.6M |
|
1813
CALL
Telus
TU
$16B
| $2.65M | ﹤0.01% |
101,400
+74,800
| +281% | +$1.85M |
|
1814
CALL
Murphy Oil
MUR
$5.58B
| $2.65M | ﹤0.01% |
65,600
+33,800
| +106% | +$1.16M |
|
1815
CALL
American Eagle Outfitters
AEO
$2.85B
| $2.65M | ﹤0.01% |
157,500
+14,400
| +10% | +$304K |
|
1816
Datadog
DDOG
$87.9B
| $2.65M | ﹤0.01% |
+17,471
| New | +$2.56M |
|
1817
Deckers Outdoor
DECK
$13.3B
| $2.64M | ﹤0.01% |
57,918
+54,930
| +1,838% | +$2.73M |
|
1818
PUT
Elastic
ESTC
$6.1B
| $2.64M | ﹤0.01% |
29,700
-4,300
| -13% | -$384K |
|
1819
PUT
PennyMac Financial
PFSI
$4.38B
| $2.64M | ﹤0.01% |
49,600
-20,600
| -29% | -$1.25M |
|
|
ACB
1820
CALL
Aurora Cannabis
ACB
$165M
| $2.63M | ﹤0.01% |
65,850
-1,070
| -2% | -$45.3K |
|
|
MTTR
1821
PUT
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
| $2.63M | ﹤0.01% |
323,900
+161,800
| +100% | +$1.53M |
|
1822
PUT
Sabesp
SBS
$19.7B
| $2.63M | ﹤0.01% |
1,378,854
+1,358,744
| +6,757% | +$2M |
|
1823
PUT
Alpha Metallurgical Resources
AMR
$1.82B
| $2.63M | ﹤0.01% |
19,900
+18,500
| +1,321% | +$1.7M |
|
1824
PUT
Under Armour Class C
UA
$2.92B
| $2.62M | ﹤0.01% |
158,300
-209,500
| -57% | -$3.28M |
|
1825
CALL
Carlyle Group
CG
$16.3B
| $2.62M | ﹤0.01% |
53,600
-8,900
| -14% | -$426K |
|
Similar funds
Simplex Trading's Q1 2022 Portfolio in Review
As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.
Simplex Trading deployed $17.5B of net new capital in Q1 2022, opening 1,603 new positions and adding to 4,441 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
By sector, the portfolio is most concentrated in Technology at 0.67% of assets, up from 0.61% a quarter earlier, followed by Consumer Discretionary and Industrials.
On the sell side, the largest reduction was Verizon, an estimated $42.5M trimmed.
- Simplex Trading's largest Q1 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
- Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
- Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
- Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
- Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
- Simplex Trading opened 1,603 new positions and closed 1,637 in Q1 2022.
- Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.
Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.