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 | |
|---|---|---|---|---|---|---|
4101
PUT
GrafTech
EAF
$200M
| $409K | ﹤0.01% |
4,260
+3,500
| +461% | +$364K |
|
|
GOGL
4102
CALL
DELISTED
Golden Ocean Group
GOGL
| $409K | ﹤0.01% |
33,100
-34,500
| -51% | -$375K |
|
|
CLVR
4103
DELISTED
Clever Leaves Holdings Inc. Common Shares
CLVR
| $409K | ﹤0.01% |
+5,477
| New | +$298K |
|
|
GSP
4104
CALL
DELISTED
Barclays Bank PLC iPath Exchange Traded Notes due 2036 Linked to GSCI Total Return Index
GSP
| $409K | ﹤0.01% |
11,100
+8,300
| +296% | +$172K |
|
4105
Honda
HMC
$39.3B
| $408K | ﹤0.01% |
14,445
+13,788
| +2,099% | +$405K |
|
|
MTLS
4106
PUT
Materialise
MTLS
$373M
| $408K | ﹤0.01% |
21,100
-600
| -3% | -$12.1K |
|
|
NVNO
4107
CALL
enVVeno Medical
NVNO
$6.94M
| $408K | ﹤0.01% |
1,831
-169
| -8% | -$32.8K |
|
|
AMRN
4108
PUT
Amarin Corp
AMRN
$293M
| $407K | ﹤0.01% |
6,200
-870
| -12% | -$57.4K |
|
4109
PUT
Compass
COMP
$8.88B
| $407K | ﹤0.01% |
51,800
+46,200
| +825% | +$364K |
|
4110
PUT
Signet Jewelers
SIG
$3.81B
| $407K | ﹤0.01% |
5,600
+700
| +14% | +$55.9K |
|
4111
PUT
Sportsman's Warehouse
SPWH
$45.7M
| $407K | ﹤0.01% |
38,100
-24,900
| -40% | -$279K |
|
4112
CALL
Verra Mobility
VRRM
$635M
| $407K | ﹤0.01% |
25,000
-5,800
| -19% | -$93.3K |
|
|
HGEN
4113
PUT
DELISTED
HUMANIGEN, INC.
HGEN
| $407K | ﹤0.01% |
135,500
+114,700
| +551% | +$307K |
|
4114
PUT
Cirrus Logic
CRUS
$6.87B
| $406K | ﹤0.01% |
4,800
-2,100
| -30% | -$180K |
|
4115
PUT
GXO Logistics
GXO
$6.13B
| $406K | ﹤0.01% |
5,700
+2,700
| +90% | +$216K |
|
|
HEP
4116
CALL
DELISTED
Holly Energy Partners, L.P.
HEP
| $406K | ﹤0.01% |
23,000
+15,300
| +199% | +$271K |
|
4117
PUT
Northern Oil and Gas
NOG
$2.16B
| $405K | ﹤0.01% |
14,400
+10,800
| +300% | +$265K |
|
4118
PUT
Tenaris
TS
$28.1B
| $405K | ﹤0.01% |
+13,500
| New | +$351K |
|
4119
PUT
XPEL
XPEL
$1.21B
| $405K | ﹤0.01% |
7,700
+5,300
| +221% | +$327K |
|
|
JO
4120
DELISTED
iPath Series B Bloomberg Coffee Subindex Total ReturnSM ETN
JO
| $405K | ﹤0.01% |
6,624
-1,089
| -14% | -$69.3K |
|
4121
Direxion Daily Semiconductor Bear 3X ETF
SOXS
$2.23B
| $404K | ﹤0.01% |
5
+1
| +25% | +$85.9K |
|
4122
CALL
Calix
CALX
$2.34B
| $403K | ﹤0.01% |
9,400
-700
| -7% | -$35.4K |
|
4123
Fate Therapeutics
FATE
$270M
| $403K | ﹤0.01% |
10,417
+9,991
| +2,345% | +$387K |
|
4124
Kennametal
KMT
$2.71B
| $403K | ﹤0.01% |
14,115
+10,864
| +334% | +$357K |
|
4125
CALL
MannKind Corp
MNKD
$1.21B
| $403K | ﹤0.01% |
109,600
-26,100
| -19% | -$95.4K |
|
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.