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 | |
|---|---|---|---|---|---|---|
751
PUT
Nutrien
NTR
$33B
| $12M | 0.01% |
115,200
+34,400
| +43% | +$2.85M |
|
752
CALL
Akamai
AKAM
$17.7B
| $11.9M | 0.01% |
100,100
+61,600
| +160% | +$6.91M |
|
753
PUT
SAP
SAP
$170B
| $11.9M | 0.01% |
107,700
+98,800
| +1,110% | +$12M |
|
754
CALL
United Rentals
URI
$72.6B
| $11.9M | 0.01% |
33,400
+12,700
| +61% | +$4.15M |
|
755
CALL
Zimmer Biomet
ZBH
$17.4B
| $11.8M | 0.01% |
109,400
+61,917
| +130% | +$7.46M |
|
756
PUT
Burlington
BURL
$21.8B
| $11.8M | 0.01% |
64,800
+61,800
| +2,060% | +$13.5M |
|
757
PUT
SolarEdge
SEDG
$2.78B
| $11.8M | 0.01% |
36,600
-24,500
| -40% | -$6.73M |
|
758
CALL
Charter Communications
CHTR
$15.5B
| $11.8M | 0.01% |
21,600
-22,900
| -51% | -$13.4M |
|
|
SIVB
759
CALL
DELISTED
SVB Financial Group
SIVB
| $11.7M | 0.01% |
21,000
+17,000
| +425% | +$10.3M |
|
760
PUT
Humana
HUM
$47.3B
| $11.7M | 0.01% |
26,900
-36,600
| -58% | -$15.3M |
|
|
LAC
761
CALL
DELISTED
Lithium Americas Corp. Common Shares
LAC
| $11.7M | 0.01% |
303,300
+161,800
| +114% | +$4.61M |
|
762
BP
BP
$114B
| $11.7M | 0.01% |
396,593
+84,154
| +27% | +$2.57M |
|
763
Broadcom
AVGO
$1.86T
| $11.6M | 0.01% |
184,660
+62,350
| +51% | +$3.7M |
|
764
CALL
Autodesk
ADSK
$43.1B
| $11.6M | 0.01% |
54,200
-34,400
| -39% | -$7.92M |
|
765
CALL
NCR Voyix
VYX
$1.03B
| $11.6M | 0.01% |
470,418
-13,692
| -3% | -$336K |
|
766
Delta Air Lines
DAL
$53.9B
| $11.5M | 0.01% |
291,194
-322,700
| -53% | -$12.6M |
|
|
MRO
767
PUT
DELISTED
Marathon Oil Corporation
MRO
| $11.5M | 0.01% |
458,300
-161,300
| -26% | -$3.46M |
|
768
PUT
American International
AIG
$41.6B
| $11.5M | 0.01% |
182,600
+30,700
| +20% | +$1.85M |
|
769
CALL
Canadian Natural Resources
CNQ
$97.9B
| $11.5M | 0.01% |
377,566
+154,375
| +69% | +$4.11M |
|
770
PUT
Microchip Technology
MCHP
$44.1B
| $11.4M | 0.01% |
151,400
-25,100
| -14% | -$1.89M |
|
771
PUT
Rio Tinto
RIO
$149B
| $11.4M | 0.01% |
141,300
-54,800
| -28% | -$4.16M |
|
772
CALL
Hertz
HTZ
$632M
| $11.3M | 0.01% |
516,200
-62,300
| -11% | -$1.31M |
|
|
773
CALL
Microchip Technology
MCHP
$44.1B
| $11.3M | 0.01% |
150,900
-21,500
| -12% | -$1.62M |
|
|
DFS
774
PUT
DELISTED
Discover Financial Services
DFS
| $11.3M | 0.01% |
102,600
-300
| -0.3% | -$35.3K |
|
775
PUT
HCA Healthcare
HCA
$83.4B
| $11.3M | 0.01% |
45,100
+15,800
| +54% | +$3.97M |
|
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.