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 | |
|---|---|---|---|---|---|---|
9551
PUT
Harmonic Inc
HLIT
$1.21B
| $4K | ﹤0.01% |
500
+100
| +25% | +$980 |
|
9552
Harmony Biosciences
HRMY
$2.04B
| $4K | ﹤0.01% |
+100
| New | +$4.08K |
|
|
IMCC
9553
CALL
IM Cannabis
IMCC
$1.09M
| $4K | ﹤0.01% |
38
-94
| -71% | -$12.8K |
|
9554
CALL
Innodata
INOD
$1.83B
| $4K | ﹤0.01% |
600
+100
| +20% | +$587 |
|
9555
CALL
Ituran Location and Control
ITRN
$1.08B
| $4K | ﹤0.01% |
200
-900
| -82% | -$21K |
|
9556
iShares Core S&P US Value ETF
IUSV
$27.2B
| $4K | ﹤0.01% |
65
| – | – |
|
9557
PUT
KALA BIO
KALA
$11.8M
| $4K | ﹤0.01% |
1
| – | – |
|
9558
Knowles
KN
$3.22B
| $4K | ﹤0.01% |
+225
| New | +$4.92K |
|
9559
PUT
Kiniksa Pharmaceuticals
KNSA
$4.83B
| $4K | ﹤0.01% |
500
-3,800
| -88% | -$40.3K |
|
9560
Lands' End
LE
$361M
| $4K | ﹤0.01% |
260
-2,930
| -92% | -$52.4K |
|
9561
Li Auto
LI
$12.6B
| $4K | ﹤0.01% |
185
-327,891
| -100% | -$9.04M |
|
|
LOMA
9562
Loma Negra
LOMA
$1.33B
| $4K | ﹤0.01% |
804
-19,649
| -96% | -$117K |
|
9563
PUT
LiveOne
LVO
$66M
| $4K | ﹤0.01% |
550
-650
| -54% | -$5.67K |
|
9564
Moelis & Co
MC
$4.98B
| $4K | ﹤0.01% |
91
-540
| -86% | -$28.1K |
|
9565
CALL
Methode Electronics
MEI
$543M
| $4K | ﹤0.01% |
100
-800
| -89% | -$35.8K |
|
9566
McEwen Inc
MUX
$1.03B
| $4K | ﹤0.01% |
570
-4,364
| -88% | -$37.7K |
|
9567
MYR Group
MYRG
$5.9B
| $4K | ﹤0.01% |
+49
| New | +$4.66K |
|
9568
CALL
Natural Gas Services Group
NGS
$470M
| $4K | ﹤0.01% |
400
+300
| +300% | +$3.46K |
|
9569
PUT
NanoViricides
NNVC
$34M
| $4K | ﹤0.01% |
2,000
-19,000
| -90% | -$44.4K |
|
|
NVNO
9570
PUT
enVVeno Medical
NVNO
$6.94M
| $4K | ﹤0.01% |
+20
| New | +$3.88K |
|
9571
PUT
Oppenheimer Holdings
OPY
$1.17B
| $4K | ﹤0.01% |
100
-100
| -50% | -$4.38K |
|
9572
Invesco NASDAQ Internet ETF
PNQI
$501M
| $4K | ﹤0.01% |
+125
| New | +$4.43K |
|
|
PTPI
9573
PUT
DELISTED
Petros Pharmaceuticals
PTPI
| $4K | ﹤0.01% |
10
-4
| -29% | -$1.69K |
|
|
AIXC
9574
CALL
AIxCrypto Holdings Inc
AIXC
$16.6M
| $4K | ﹤0.01% |
14
+5
| +56% | +$1.95K |
|
9575
CALL
QuinStreet
QNST
$870M
| $4K | ﹤0.01% |
400
-3,200
| -89% | -$43K |
|
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.