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 | |
|---|---|---|---|---|---|---|
2901
Strategy Inc
MSTR
$33.5B
| $1.02M | ﹤0.01% |
+20,910
| New | +$905K |
|
2902
PUT
NRG Energy
NRG
$29.8B
| $1.02M | ﹤0.01% |
26,500
-21,000
| -44% | -$819K |
|
2903
Motorola Solutions
MSI
$69.4B
| $1.01M | ﹤0.01% |
4,194
-561
| -12% | -$130K |
|
|
EXK
2904
CALL
Endeavour Silver
EXK
$2.32B
| $1.01M | ﹤0.01% |
218,100
+102,000
| +88% | +$444K |
|
|
CHX
2905
CALL
DELISTED
ChampionX
CHX
| $1.01M | ﹤0.01% |
41,400
+18,100
| +78% | +$419K |
|
2906
PUT
Howmet Aerospace
HWM
$116B
| $1.01M | ﹤0.01% |
28,200
+25,400
| +907% | +$867K |
|
2907
PUT
Clarivate
CLVT
$1.3B
| $1.01M | ﹤0.01% |
60,400
+43,700
| +262% | +$724K |
|
2908
CALL
TransUnion
TRU
$14.8B
| $1.01M | ﹤0.01% |
9,800
-8,000
| -45% | -$812K |
|
2909
PUT
Axos Financial
AX
$5.45B
| $1.01M | ﹤0.01% |
21,800
+21,700
| +21,700% | +$1.15M |
|
2910
JB Hunt Transport Services
JBHT
$27.1B
| $1.01M | ﹤0.01% |
5,031
+2,765
| +122% | +$551K |
|
2911
CALL
Papa John's
PZZA
$999M
| $1.01M | ﹤0.01% |
9,600
-4,800
| -33% | -$538K |
|
|
FFAI
2912
CALL
Faraday Future Intelligent Electric
FFAI
$15.8M
| – | – |
0
| – | – |
|
|
POSH
2913
CALL
DELISTED
Poshmark, Inc. Class A Common Stock
POSH
| $1.01M | ﹤0.01% |
79,600
+2,700
| +4% | +$39.1K |
|
2914
CALL
Aurora
AUR
$11.7B
| $1.01M | ﹤0.01% |
180,100
+102,600
| +132% | +$591K |
|
2915
CALL
Ecolab
ECL
$75.6B
| $1.01M | ﹤0.01% |
5,700
+2,200
| +63% | +$413K |
|
2916
PUT
Nu Holdings
NU
$68.1B
| $1M | ﹤0.01% |
130,200
+89,600
| +221% | +$719K |
|
2917
Trip.com Group
TCOM
$27.5B
| $1M | ﹤0.01% |
43,492
-42,398
| -49% | -$1.07M |
|
2918
Hasbro
HAS
$12.6B
| $1M | ﹤0.01% |
12,220
-1,199
| -9% | -$112K |
|
2919
CALL
RPM International
RPM
$13.7B
| $1M | ﹤0.01% |
12,300
-12,700
| -51% | -$1.09M |
|
2920
CALL
FMC
FMC
$1.42B
| $999K | ﹤0.01% |
7,600
-16,600
| -69% | -$1.95M |
|
|
PLL
2921
CALL
DELISTED
Piedmont Lithium
PLL
| $999K | ﹤0.01% |
13,700
+9,700
| +243% | +$545K |
|
|
QLTB
2922
CALL
DELISTED
ISHARES BAA BA RATED CORP BOND FUND
QLTB
| $998K | ﹤0.01% |
8,500
+2,100
| +33% | +$247K |
|
2923
FerroAtlántica
GSM
$628M
| $997K | ﹤0.01% |
129,553
+23,117
| +22% | +$158K |
|
2924
PUT
Littelfuse
LFUS
$10.2B
| $997K | ﹤0.01% |
+4,000
| New | +$1.06M |
|
2925
CALL
Mirion Technologies
MIR
$4.05B
| $997K | ﹤0.01% |
123,600
-34,100
| -22% | -$294K |
|
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.