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 | |
|---|---|---|---|---|---|---|
951
PUT
Progressive
PGR
$120B
| $8.04M | 0.01% |
70,500
-16,300
| -19% | -$1.76M |
|
952
PUT
AutoNation
AN
$6.86B
| $8.02M | 0.01% |
80,500
+70,800
| +730% | +$7.82M |
|
953
PUT
Welltower
WELL
$174B
| $8.01M | 0.01% |
83,300
-700
| -0.8% | -$60.8K |
|
954
PUT
General Dynamics
GD
$103B
| $8.01M | 0.01% |
33,200
-6,300
| -16% | -$1.4M |
|
955
PUT
Trip.com Group
TCOM
$27.1B
| $7.99M | 0.01% |
345,800
+118,600
| +52% | +$2.99M |
|
956
CALL
Steel Dynamics
STLD
$34.7B
| $7.97M | 0.01% |
95,600
+4,900
| +5% | +$331K |
|
957
CALL
Stryker
SYK
$122B
| $7.97M | 0.01% |
29,800
+14,700
| +97% | +$3.8M |
|
958
Morgan Stanley
MS
$338B
| $7.95M | 0.01% |
+90,937
| New | +$8.77M |
|
959
CALL
Aflac
AFL
$63.3B
| $7.95M | 0.01% |
123,400
+18,100
| +17% | +$1.13M |
|
|
960
Direxion Daily S&P 500 Bull 3x ETF
SPXL
$6.57B
| $7.94M | 0.01% |
66,248
-280,271
| -81% | -$32.7M |
|
961
PUT
Becton Dickinson
BDX
$42.1B
| $7.93M | 0.01% |
30,545
-34,030
| -53% | -$8.76M |
|
962
CALL
iShares Core MSCI Emerging Markets ETF
IEMG
$152B
| $7.92M | 0.01% |
142,700
-173,600
| -55% | -$10M |
|
963
CALL
American Electric Power
AEP
$73.4B
| $7.89M | 0.01% |
79,100
-15,800
| -17% | -$1.44M |
|
964
CALL
Equinor
EQNR
$97.4B
| $7.88M | 0.01% |
210,000
-14,000
| -6% | -$435K |
|
965
PUT
Regions Financial
RF
$26.2B
| $7.86M | 0.01% |
353,000
+134,200
| +61% | +$3.16M |
|
966
PUT
Stanley Black & Decker
SWK
$13.6B
| $7.86M | 0.01% |
56,200
+40,000
| +247% | +$6.61M |
|
967
PUT
ChargePoint
CHPT
$140M
| $7.85M | 0.01% |
19,750
+1,755
| +10% | +$541K |
|
968
CALL
CSX Corp
CSX
$98.1B
| $7.84M | 0.01% |
209,400
+154,100
| +279% | +$5.45M |
|
969
CALL
Wheaton Precious Metals
WPM
$50B
| $7.83M | 0.01% |
164,500
-25,800
| -14% | -$1.12M |
|
|
FISV
970
PUT
Fiserv Inc
FISV
$26.6B
| $7.81M | 0.01% |
77,000
-18,100
| -19% | -$1.83M |
|
971
CALL
Kohl's
KSS
$2.06B
| $7.78M | 0.01% |
128,600
-310,200
| -71% | -$17.5M |
|
972
CALL
Mondelez International
MDLZ
$77.1B
| $7.76M | 0.01% |
123,600
-17,900
| -13% | -$1.17M |
|
973
CALL
VICI Properties
VICI
$29B
| $7.74M | 0.01% |
272,000
+256,800
| +1,689% | +$7.2M |
|
974
PUT
Ionis Pharmaceuticals
IONS
$9.23B
| $7.73M | 0.01% |
208,700
+199,800
| +2,245% | +$6.54M |
|
975
CALL
Dave & Buster's
PLAY
$339M
| $7.73M | 0.01% |
157,400
+58,500
| +59% | +$2.34M |
|
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.