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 | |
|---|---|---|---|---|---|---|
2976
PUT
Virtu Financial
VIRT
$5.2B
| $956K | ﹤0.01% |
25,700
+13,700
| +114% | +$453K |
|
|
ETRN
2977
PUT
DELISTED
Equitrans Midstream Corporation Common Stock
ETRN
| $956K | ﹤0.01% |
113,300
+73,400
| +184% | +$605K |
|
2978
PUT
Eldorado Gold
EGO
$8.31B
| $955K | ﹤0.01% |
85,200
+6,200
| +8% | +$63.5K |
|
2979
Public Storage
PSA
$60.2B
| $955K | ﹤0.01% |
+2,448
| New | +$888K |
|
|
VSXY
2980
CALL
Victoria's Secret
VSXY
$6.64B
| $955K | ﹤0.01% |
18,600
+4,000
| +27% | +$218K |
|
2981
PUT
Outdoor Holding Co
POWW
$239M
| $954K | ﹤0.01% |
198,900
+149,000
| +299% | +$697K |
|
2982
PUT
H&R Block
HRB
$5.18B
| $953K | ﹤0.01% |
36,600
-90,800
| -71% | -$2.2M |
|
2983
PUT
Tandem Diabetes Care
TNDM
$1.17B
| $953K | ﹤0.01% |
8,200
+1,400
| +21% | +$163K |
|
2984
General Mills
GIS
$19.2B
| $951K | ﹤0.01% |
14,045
-31,559
| -69% | -$2.12M |
|
|
ORGN
2985
CALL
DELISTED
Origin Materials
ORGN
| $951K | ﹤0.01% |
4,820
+653
| +16% | +$114K |
|
2986
Rocket Companies
RKT
$36.9B
| $951K | ﹤0.01% |
85,574
-254,688
| -75% | -$3.15M |
|
2987
CALL
Antero Midstream
AM
$10.8B
| $950K | ﹤0.01% |
87,400
+37,800
| +76% | +$384K |
|
2988
HDFC Bank
HDB
$119B
| $950K | ﹤0.01% |
30,996
-96,046
| -76% | -$3.12M |
|
2989
Gerdau
GGB
$9.44B
| $948K | ﹤0.01% |
185,805
+108,321
| +140% | +$465K |
|
2990
PUT
BioCryst Pharmaceuticals
BCRX
$2.37B
| $947K | ﹤0.01% |
58,300
-45,900
| -44% | -$736K |
|
|
NVMI
2991
PUT
Nova
NVMI
$13.9B
| $947K | ﹤0.01% |
+8,700
| New | +$1.02M |
|
2992
PUT
Vanguard Emerging Markets Government Bond ETF
VWOB
$6.15B
| $947K | ﹤0.01% |
9,200
-111,300
| -92% | -$8.06M |
|
2993
CALL
BGC Group
BGC
$5.58B
| $944K | ﹤0.01% |
214,700
-43,100
| -17% | -$191K |
|
2994
Schrodinger
SDGR
$1.12B
| $944K | ﹤0.01% |
27,686
+24,203
| +695% | +$735K |
|
|
SEE
2995
CALL
DELISTED
Sealed Air
SEE
| $944K | ﹤0.01% |
14,100
+4,900
| +53% | +$326K |
|
|
CONX
2996
CALL
DELISTED
CONX Corp. Class A Common Stock
CONX
| $944K | ﹤0.01% |
95,900
-204,800
| -68% | -$2.01M |
|
2997
Veeva Systems
VEEV
$30.3B
| $943K | ﹤0.01% |
4,443
-1,340
| -23% | -$291K |
|
2998
PUT
Macerich
MAC
$7.32B
| $941K | ﹤0.01% |
60,200
-22,000
| -27% | -$353K |
|
2999
PUT
Paychex
PAYX
$40.4B
| $941K | ﹤0.01% |
6,900
-28,300
| -80% | -$3.47M |
|
|
SRG
3000
CALL
Seritage Growth Properties
SRG
$130M
| $940K | ﹤0.01% |
74,300
+42,500
| +134% | +$469K |
|
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.