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 | |
|---|---|---|---|---|---|---|
3751
Digi International
DGII
$2.52B
| $536K | ﹤0.01% |
24,929
+14,863
| +148% | +$318K |
|
|
GLOP
3752
PUT
DELISTED
GASLOG PARTNERS LP
GLOP
| $536K | ﹤0.01% |
93,300
+27,300
| +41% | +$117K |
|
3753
PUT
Cricut
CRCT
$980M
| $535K | ﹤0.01% |
40,900
+26,200
| +178% | +$454K |
|
3754
Ollie's Bargain Outlet
OLLI
$4.25B
| $535K | ﹤0.01% |
+12,468
| New | +$556K |
|
3755
Invesco S&P SmallCap Energy ETF
PSCE
$93.5M
| $535K | ﹤0.01% |
+10,696
| New | +$456K |
|
3756
CALL
Sportradar
SRAD
$4.43B
| $535K | ﹤0.01% |
32,200
+6,800
| +27% | +$96.8K |
|
|
JOAN
3757
CALL
DELISTED
JOANN, Inc. Common Stock
JOAN
| $535K | ﹤0.01% |
46,900
+7,400
| +19% | +$83.4K |
|
|
FPI
3758
Farmland Partners
FPI
$420M
| $534K | ﹤0.01% |
38,868
+27,642
| +246% | +$335K |
|
|
SEI
3759
PUT
Solaris Energy Infrastructure
SEI
$2.92B
| $534K | ﹤0.01% |
47,300
+6,400
| +16% | +$58K |
|
3760
PUT
Green Dot
GDOT
$758M
| $533K | ﹤0.01% |
19,400
-4,800
| -20% | -$146K |
|
|
AGS
3761
PUT
DELISTED
PlayAGS
AGS
| $532K | ﹤0.01% |
79,900
+79,700
| +39,850% | +$598K |
|
|
PBT
3762
CALL
Permian Basin Royalty Trust
PBT
$1.31B
| $532K | ﹤0.01% |
42,600
+42,500
| +42,500% | +$548K |
|
|
EIGR
3763
DELISTED
Eiger BioPharmaceuticals, Inc.
EIGR
| $532K | ﹤0.01% |
2,138
+1,808
| +548% | +$286K |
|
3764
Arcturus Therapeutics
ARCT
$163M
| $531K | ﹤0.01% |
19,710
+13,339
| +209% | +$340K |
|
|
DISCK
3765
DELISTED
Discovery, Inc. Series C Common Stock
DISCK
| $531K | ﹤0.01% |
+21,272
| New | +$578K |
|
3766
CALL
AbCellera Biologics
ABCL
$1.6B
| $530K | ﹤0.01% |
54,400
-300
| -0.5% | -$2.84K |
|
3767
PUT
Alliance Resource Partners
ARLP
$3.34B
| $530K | ﹤0.01% |
34,400
-28,700
| -45% | -$406K |
|
3768
CALL
Dine Brands
DIN
$453M
| $530K | ﹤0.01% |
6,800
+4,400
| +183% | +$327K |
|
|
CIM
3769
CALL
Chimera Investment
CIM
$1.06B
| $529K | ﹤0.01% |
14,667
-10,433
| -42% | -$415K |
|
3770
CALL
Traeger
COOK
$160M
| $529K | ﹤0.01% |
1,424
+632
| +80% | +$301K |
|
3771
CALL
Eversource Energy
ES
$28.5B
| $529K | ﹤0.01% |
6,000
+4,600
| +329% | +$393K |
|
3772
Coca-Cola Europacific Partners
CCEP
$48.9B
| $528K | ﹤0.01% |
+10,874
| New | +$583K |
|
3773
PUT
Wabtec
WAB
$51.2B
| $528K | ﹤0.01% |
5,500
-16,200
| -75% | -$1.5M |
|
3774
PUT
Newegg Commerce
NEGG
$297M
| $527K | ﹤0.01% |
4,175
+3,690
| +761% | +$477K |
|
3775
PUT
News Corp Class B
NWS
$17.3B
| $527K | ﹤0.01% |
23,800
+7,700
| +48% | +$172K |
|
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.