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 | |
|---|---|---|---|---|---|---|
1751
PUT
Ciena
CIEN
$55.3B
| $2.82M | ﹤0.01% |
46,500
-69,300
| -60% | -$4.54M |
|
1752
CALL
KLA
KLAC
$275B
| $2.82M | ﹤0.01% |
77,000
-49,000
| -39% | -$1.83M |
|
1753
CALL
Coursera
COUR
$1.54B
| $2.81M | ﹤0.01% |
122,200
+97,000
| +385% | +$1.99M |
|
|
NOVA
1754
PUT
DELISTED
Sunnova Energy
NOVA
| $2.81M | ﹤0.01% |
122,100
+27,900
| +30% | +$597K |
|
1755
CALL
iShares S&P GSCI Commodity-Indexed Trust
GSG
$1.02B
| $2.81M | ﹤0.01% |
124,200
+105,200
| +554% | +$2.17M |
|
1756
Digital Realty Trust
DLR
$73.7B
| $2.81M | ﹤0.01% |
19,827
+14,168
| +250% | +$2.05M |
|
1757
CALL
Nabors Industries
NBR
$1.23B
| $2.81M | ﹤0.01% |
18,400
+11,600
| +171% | +$1.46M |
|
1758
CALL
Clarivate
CLVT
$1.3B
| $2.81M | ﹤0.01% |
167,400
+132,400
| +378% | +$2.19M |
|
1759
Woodward
WWD
$25B
| $2.8M | ﹤0.01% |
22,453
+13,570
| +153% | +$1.6M |
|
1760
PUT
Lumentum
LITE
$59.4B
| $2.79M | ﹤0.01% |
28,600
-9,200
| -24% | -$900K |
|
1761
PUT
MarketAxess Holdings
MKTX
$4.15B
| $2.79M | ﹤0.01% |
8,200
-6,600
| -45% | -$2.39M |
|
|
FITB
1762
CALL
Fifth Third Bancorp
FITB
$52B
| $2.79M | ﹤0.01% |
64,800
+38,800
| +149% | +$1.81M |
|
1763
Fidelity National Information Services
FIS
$21.5B
| $2.79M | ﹤0.01% |
27,745
-17,490
| -39% | -$1.83M |
|
1764
WIX.com
WIX
$2.15B
| $2.79M | ﹤0.01% |
26,679
+14,968
| +128% | +$1.63M |
|
|
SGFY
1765
CALL
DELISTED
Signify Health, Inc.
SGFY
| $2.78M | ﹤0.01% |
153,400
+151,300
| +7,205% | +$2.17M |
|
1766
PUT
Teradyne
TER
$54.8B
| $2.78M | ﹤0.01% |
23,500
-14,300
| -38% | -$1.81M |
|
1767
CALL
PBF Energy
PBF
$7.29B
| $2.77M | ﹤0.01% |
113,900
-91,100
| -44% | -$1.72M |
|
|
EVBG
1768
PUT
DELISTED
Everbridge, Inc. Common Stock
EVBG
| $2.77M | ﹤0.01% |
63,600
+56,800
| +835% | +$2.68M |
|
1769
PUT
Invesco
IVZ
$13.3B
| $2.77M | ﹤0.01% |
120,100
-200
| -0.2% | -$4.44K |
|
1770
PUT
Coty
COTY
$2.33B
| $2.76M | ﹤0.01% |
307,200
-117,500
| -28% | -$1.05M |
|
1771
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27B
| $2.76M | ﹤0.01% |
+5,626
| New | +$2.74M |
|
1772
CALL
Clover Health Investments
CLOV
$2.28B
| $2.76M | ﹤0.01% |
776,400
-545,800
| -41% | -$1.58M |
|
1773
PUT
Corsair Gaming
CRSR
$1.05B
| $2.75M | ﹤0.01% |
130,200
+13,500
| +12% | +$282K |
|
1774
CALL
Vulcan Materials
VMC
$36.3B
| $2.75M | ﹤0.01% |
15,000
+2,700
| +22% | +$504K |
|
1775
PUT
Vodafone
VOD
$34.9B
| $2.75M | ﹤0.01% |
165,800
+1,400
| +0.9% | +$23.9K |
|
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.