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 | |
|---|---|---|---|---|---|---|
1676
PUT
Extra Space Storage
EXR
$31.2B
| $3.06M | ﹤0.01% |
14,900
-1,300
| -8% | -$258K |
|
1677
CALL
Nutanix
NTNX
$14.9B
| $3.06M | ﹤0.01% |
114,100
-106,900
| -48% | -$2.86M |
|
1678
PUT
nCino
NCNO
$1.81B
| $3.05M | ﹤0.01% |
74,500
+42,000
| +129% | +$1.92M |
|
1679
CALL
3D Systems Corp
DDD
$420M
| $3.05M | ﹤0.01% |
183,000
+71,700
| +64% | +$1.25M |
|
1680
CALL
Vistra
VST
$55.1B
| $3.05M | ﹤0.01% |
131,200
-53,700
| -29% | -$1.19M |
|
1681
PUT
Cinemark Holdings
CNK
$3.82B
| $3.05M | ﹤0.01% |
176,400
+36,600
| +26% | +$608K |
|
1682
CALL
Sherwin-Williams
SHW
$78.3B
| $3.04M | ﹤0.01% |
12,200
-45,700
| -79% | -$12.6M |
|
|
SWTX
1683
CALL
DELISTED
SpringWorks Therapeutics
SWTX
| $3.04M | ﹤0.01% |
+53,900
| New | +$3.08M |
|
1684
Zoetis
ZTS
$31.6B
| $3.04M | ﹤0.01% |
+16,097
| New | +$3.18M |
|
1685
CALL
Molson Coors Class B
TAP
$7.68B
| $3.03M | ﹤0.01% |
56,800
-112,900
| -67% | -$5.69M |
|
1686
CALL
American Water Works
AWK
$26.3B
| $3.03M | ﹤0.01% |
18,300
-700
| -4% | -$111K |
|
1687
PUT
BJs Wholesale Club
BJ
$11.9B
| $3.03M | ﹤0.01% |
44,800
+30,400
| +211% | +$1.91M |
|
1688
PUT
BorgWarner
BWA
$13.2B
| $3.03M | ﹤0.01% |
88,381
+52,483
| +146% | +$1.96M |
|
1689
PUT
Rapid7
RPD
$634M
| $3.02M | ﹤0.01% |
27,200
+24,700
| +988% | +$2.48M |
|
1690
CALL
Digital Realty Trust
DLR
$73.7B
| $3.02M | ﹤0.01% |
21,300
-10,700
| -33% | -$1.55M |
|
1691
CALL
Icahn Enterprises
IEP
$5.17B
| $3.02M | ﹤0.01% |
58,100
+42,900
| +282% | +$2.3M |
|
|
AMED
1692
DELISTED
Amedisys
AMED
| $3.02M | ﹤0.01% |
+17,507
| New | +$2.62M |
|
1693
Ovintiv
OVV
$17.7B
| $3.01M | ﹤0.01% |
+55,752
| New | +$2.4M |
|
1694
CALL
United States Copper Index Fund
CPER
$742M
| $3.01M | ﹤0.01% |
104,900
+61,500
| +142% | +$1.71M |
|
1695
CALL
Western Union
WU
$2.57B
| $3.01M | ﹤0.01% |
160,700
-157,200
| -49% | -$2.91M |
|
1696
Steel Dynamics
STLD
$35.6B
| $3.01M | ﹤0.01% |
+36,035
| New | +$2.43M |
|
|
SLCA
1697
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
| $3.01M | ﹤0.01% |
161,135
+130,069
| +419% | +$1.64M |
|
1698
CALL
Takeda Pharmaceutical
TAK
$55.1B
| $3M | ﹤0.01% |
209,800
+185,400
| +760% | +$2.72M |
|
1699
First Trust NASDAQ Cybersecurity ETF
CIBR
$13.8B
| $3M | ﹤0.01% |
56,529
+42,453
| +302% | +$2.08M |
|
|
TIGR
1700
PUT
UP Fintech Holding
TIGR
$845M
| $3M | ﹤0.01% |
612,400
+421,600
| +221% | +$1.89M |
|
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.