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 | |
|---|---|---|---|---|---|---|
|
SBNY
651
PUT
DELISTED
Signature Bank
SBNY
| $14.7M | 0.01% |
50,100
+36,300
| +263% | +$11.8M |
|
652
CALL
Clorox
CLX
$11.6B
| $14.7M | 0.01% |
105,700
-3,300
| -3% | -$506K |
|
653
PUT
Waste Management
WM
$94.9B
| $14.7M | 0.01% |
92,600
-20,400
| -18% | -$3.09M |
|
654
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$1.37B
| $14.7M | 0.01% |
443,461
+317,521
| +252% | +$11.4M |
|
655
CALL
Xtrackers MSCI Emerging Markets Hedged Equity ETF
DBEM
$108M
| $14.6M | 0.01% |
439,600
+151,700
| +53% | +$3.89M |
|
656
CALL
Seagate
STX
$205B
| $14.5M | 0.01% |
161,400
+29,100
| +22% | +$2.98M |
|
657
CALL
Kraft Heinz
KHC
$30.8B
| $14.5M | 0.01% |
367,200
+47,500
| +15% | +$1.78M |
|
658
CALL
Duke Energy
DUK
$99.7B
| $14.4M | 0.01% |
128,700
+36,100
| +39% | +$3.75M |
|
|
DISH
659
PUT
DELISTED
DISH Network Corp.
DISH
| $14.4M | 0.01% |
453,600
+74,700
| +20% | +$2.36M |
|
660
PUT
DexCom
DXCM
$27.6B
| $14.3M | 0.01% |
112,000
-3,200
| -3% | -$350K |
|
661
CALL
BioNTech
BNTX
$23.2B
| $14.3M | 0.01% |
83,900
-52,900
| -39% | -$8.89M |
|
662
CALL
Yum China
YUMC
$14.9B
| $14.3M | 0.01% |
344,400
+113,800
| +49% | +$5.36M |
|
663
Plug Power
PLUG
$3.11B
| $14.3M | 0.01% |
499,605
+75,803
| +18% | +$1.81M |
|
664
PUT
Illumina
ILMN
$28.9B
| $14.3M | 0.01% |
41,942
-8,122
| -16% | -$2.74M |
|
665
PUT
Li Auto
LI
$12B
| $14.3M | 0.01% |
552,300
-118,600
| -18% | -$3.27M |
|
666
CALL
HCA Healthcare
HCA
$82.5B
| $14.2M | 0.01% |
56,700
+25,900
| +84% | +$6.5M |
|
667
PUT
Prologis
PLD
$135B
| $14.2M | 0.01% |
88,000
+5,700
| +7% | +$870K |
|
668
CALL
GSK
GSK
$102B
| $14.2M | 0.01% |
260,720
+2,800
| +1% | +$152K |
|
669
CALL
Exelon
EXC
$47.8B
| $14.2M | 0.01% |
404,000
+252,724
| +167% | +$10.7M |
|
670
CALL
Albemarle
ALB
$13.9B
| $14.1M | 0.01% |
63,900
+14,800
| +30% | +$3.13M |
|
671
Costco
COST
$411B
| $14.1M | 0.01% |
24,538
+8,806
| +56% | +$4.62M |
|
672
American Airlines Group
AAL
$9.78B
| $14.1M | 0.01% |
773,581
+296,761
| +62% | +$5.04M |
|
673
CALL
Under Armour Class C
UA
$3.02B
| $14.1M | 0.01% |
846,600
+438,800
| +108% | +$6.87M |
|
674
CALL
NetEase
NTES
$77.6B
| $14.1M | 0.01% |
157,300
+37,200
| +31% | +$3.54M |
|
675
CALL
Centene
CNC
$32.5B
| $14M | 0.01% |
166,400
+59,200
| +55% | +$4.86M |
|
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.