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 | |
|---|---|---|---|---|---|---|
926
PUT
Public Storage
PSA
$55.3B
| $8.35M | 0.01% |
21,400
+16,000
| +296% | +$5.81M |
|
927
3M
MMM
$87.5B
| $8.35M | 0.01% |
+67,038
| New | +$8.91M |
|
928
CALL
Essex Property Trust
ESS
$18.8B
| $8.33M | 0.01% |
24,100
+13,500
| +127% | +$4.51M |
|
929
CALL
Alaska Air
ALK
$4.99B
| $8.31M | 0.01% |
143,300
+81,000
| +130% | +$4.42M |
|
930
PUT
Cardinal Health
CAH
$52.9B
| $8.31M | 0.01% |
146,600
+79,800
| +119% | +$4.27M |
|
931
CALL
First Majestic Silver
AG
$8.12B
| $8.29M | 0.01% |
629,900
+5,300
| +0.8% | +$62.1K |
|
|
IPOD
932
CALL
DELISTED
Social Capital Hedosophia Holdings Corp. IV
IPOD
| $8.26M | 0.01% |
827,300
+429,000
| +108% | +$4.29M |
|
933
CALL
Goodyear
GT
$2.02B
| $8.25M | 0.01% |
577,100
+48,900
| +9% | +$868K |
|
934
CALL
Cummins
CMI
$91.8B
| $8.24M | 0.01% |
40,200
+21,200
| +112% | +$4.58M |
|
935
Electronic Arts
EA
$52.4B
| $8.21M | 0.01% |
64,866
-11,204
| -15% | -$1.46M |
|
936
CALL
Veeva Systems
VEEV
$29.2B
| $8.2M | 0.01% |
38,600
+7,200
| +23% | +$1.56M |
|
937
State Street Health Care Select Sector SPDR ETF
XLV
$41.8B
| $8.2M | 0.01% |
+59,835
| New | +$7.92M |
|
|
PPLC
938
CALL
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $8.18M | 0.01% |
571,500
+306,000
| +115% | +$4.38M |
|
939
PUT
Enterprise Products Partners
EPD
$83.9B
| $8.18M | 0.01% |
316,800
+75,800
| +31% | +$1.84M |
|
940
CALL
Stellantis
STLA
$16.7B
| $8.16M | 0.01% |
501,700
+66,900
| +15% | +$1.22M |
|
941
PUT
O'Reilly Automotive
ORLY
$71.4B
| $8.15M | 0.01% |
178,500
+69,000
| +63% | +$3.08M |
|
942
PUT
W.W. Grainger
GWW
$64.6B
| $8.15M | 0.01% |
+15,800
| New | +$7.77M |
|
|
943
PUT
Veeva Systems
VEEV
$29.2B
| $8.14M | 0.01% |
38,300
+2,700
| +8% | +$586K |
|
|
Y
944
PUT
DELISTED
Alleghany Corp
Y
| $8.13M | 0.01% |
9,600
+9,400
| +4,700% | +$6.51M |
|
945
ZIM Integrated Shipping Services
ZIM
$3.08B
| $8.13M | 0.01% |
111,781
+54,589
| +95% | +$3.78M |
|
|
GAP
946
CALL
The Gap Inc
GAP
$6.8B
| $8.12M | 0.01% |
577,000
+297,200
| +106% | +$4.74M |
|
947
PUT
HDFC Bank
HDB
$119B
| $8.11M | 0.01% |
264,600
+25,400
| +11% | +$825K |
|
948
CALL
HP
HPQ
$22.4B
| $8.1M | 0.01% |
223,200
+89,600
| +67% | +$3.31M |
|
|
BRSL
949
PUT
Brightstar Lottery PLC
BRSL
$1.9B
| $8.09M | 0.01% |
327,600
+226,700
| +225% | +$6.09M |
|
950
PUT
General Mills
GIS
$19B
| $8.04M | 0.01% |
118,700
+23,400
| +25% | +$1.57M |
|
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.