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 | |
|---|---|---|---|---|---|---|
476
United Airlines
UAL
$38.1B
| $24M | 0.02% |
518,610
+490,917
| +1,773% | +$21.3M |
|
477
CALL
Beyond Meat
BYND
$307M
| $24M | 0.02% |
496,800
+68,800
| +16% | +$3.78M |
|
478
PUT
Vale
VALE
$63.2B
| $24M | 0.02% |
1,200,300
-778,900
| -39% | -$13.5M |
|
479
PUT
First Solar
FSLR
$22.4B
| $23.9M | 0.02% |
285,400
-58,800
| -17% | -$4.5M |
|
480
CALL
Blackrock
BLK
$164B
| $23.8M | 0.02% |
31,100
+14,100
| +83% | +$11M |
|
|
FISV
481
CALL
Fiserv Inc
FISV
$26.8B
| $23.7M | 0.02% |
234,000
+116,100
| +98% | +$11.8M |
|
482
CALL
Medtronic
MDT
$105B
| $23.7M | 0.02% |
213,600
-115,100
| -35% | -$12.2M |
|
483
CALL
Carvana
CVNA
$44.9B
| $23.7M | 0.02% |
991,500
+392,000
| +65% | +$11.4M |
|
484
PUT
PNC Financial Services
PNC
$101B
| $23.6M | 0.02% |
127,700
+5,200
| +4% | +$1.05M |
|
485
PUT
Vanguard FTSE Europe ETF
VGK
$30.2B
| $23.4M | 0.02% |
367,500
+148,500
| +68% | +$9.52M |
|
486
PUT
Tyson Foods
TSN
$20.1B
| $23.2M | 0.02% |
258,900
-52,500
| -17% | -$4.79M |
|
487
CALL
Take-Two Interactive
TTWO
$43.4B
| $23.1M | 0.02% |
150,500
+74,800
| +99% | +$12M |
|
488
CALL
Linde
LIN
$235B
| $23M | 0.02% |
72,000
+8,000
| +13% | +$2.47M |
|
489
PUT
Caesars Entertainment
CZR
$6.1B
| $22.8M | 0.02% |
295,000
-75,500
| -20% | -$6.06M |
|
490
CALL
Intuit
INTU
$77.8B
| $22.8M | 0.02% |
47,400
+11,700
| +33% | +$5.99M |
|
491
KraneShares CSI China Internet ETF
KWEB
$5.23B
| $22.8M | 0.02% |
798,597
+17,714
| +2% | +$594K |
|
492
Norwegian Cruise Line
NCLH
$8.87B
| $22.8M | 0.02% |
1,040,342
+272,864
| +36% | +$5.57M |
|
493
PUT
Dollar Tree
DLTR
$23.5B
| $22.6M | 0.02% |
141,100
+14,400
| +11% | +$2.04M |
|
494
CALL
APA Corp
APA
$12.8B
| $22.6M | 0.02% |
546,700
+147,600
| +37% | +$5.15M |
|
|
PXD
495
PUT
DELISTED
Pioneer Natural Resource Co.
PXD
| $22.6M | 0.02% |
90,300
-63,700
| -41% | -$14.4M |
|
496
CALL
Unity
U
$12.8B
| $22.5M | 0.02% |
226,400
-15,300
| -6% | -$1.58M |
|
497
CALL
Toyota
TM
$213B
| $22.4M | 0.02% |
124,200
+86,900
| +233% | +$16.3M |
|
498
PUT
Skyworks Solutions
SWKS
$9.5B
| $22.2M | 0.02% |
166,900
+23,600
| +16% | +$3.31M |
|
499
PUT
Global Payments
GPN
$21.6B
| $22.2M | 0.02% |
162,500
+26,400
| +19% | +$3.69M |
|
500
PUT
HubSpot
HUBS
$10.5B
| $22.2M | 0.02% |
46,800
+23,800
| +103% | +$11.5M |
|
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.