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 | |
|---|---|---|---|---|---|---|
526
PUT
Northrop Grumman
NOC
$74.6B
| $21M | 0.02% |
46,900
-17,100
| -27% | -$7.06M |
|
527
PUT
Boston Scientific
BSX
$63.9B
| $20.8M | 0.02% |
470,100
+207,100
| +79% | +$8.98M |
|
528
CALL
Colgate-Palmolive
CL
$73.3B
| $20.7M | 0.02% |
273,600
+149,200
| +120% | +$11.8M |
|
529
CALL
Bausch Health
BHC
$1.7B
| $20.5M | 0.02% |
898,900
+436,900
| +95% | +$10.7M |
|
530
CALL
Lyft
LYFT
$5.57B
| $20.5M | 0.02% |
534,200
-108,900
| -17% | -$4.26M |
|
531
PUT
ZIM Integrated Shipping Services
ZIM
$3.01B
| $20.5M | 0.02% |
281,800
+78,900
| +39% | +$5.46M |
|
532
ExxonMobil
XOM
$640B
| $20.4M | 0.02% |
247,549
+184,559
| +293% | +$14.3M |
|
533
PUT
Bilibili
BILI
$7.4B
| $20.4M | 0.02% |
797,100
+243,300
| +44% | +$7.83M |
|
534
CALL
Halliburton
HAL
$27.6B
| $20.3M | 0.02% |
535,800
+45,600
| +9% | +$1.48M |
|
535
iShares 7-10 Year Treasury Bond ETF
IEF
$47.1B
| $20.3M | 0.02% |
188,728
+181,681
| +2,578% | +$20.2M |
|
536
CALL
Align Technology
ALGN
$12.4B
| $20.3M | 0.02% |
46,500
+30,400
| +189% | +$14.8M |
|
537
PUT
XPeng
XPEV
$12.3B
| $20.2M | 0.02% |
732,100
+244,800
| +50% | +$8.69M |
|
|
ATVI
538
DELISTED
Activision Blizzard
ATVI
| $20.2M | 0.02% |
251,924
+117,131
| +87% | +$9.12M |
|
539
PUT
Ulta Beauty
ULTA
$20.8B
| $20.1M | 0.02% |
50,600
+9,800
| +24% | +$3.69M |
|
540
CALL
Bank of Montreal
BMO
$125B
| $20M | 0.02% |
169,800
+120,500
| +244% | +$14M |
|
541
CALL
Cigna
CI
$75.4B
| $20M | 0.02% |
83,400
-5,700
| -6% | -$1.33M |
|
|
IPFF
542
PUT
DELISTED
iShares International Preferred Stock ETF
IPFF
| $20M | 0.02% |
416,800
+74,200
| +22% | +$3.56M |
|
543
CALL
Tyson Foods
TSN
$20.1B
| $20M | 0.02% |
222,800
+138,500
| +164% | +$12.6M |
|
|
544
PUT
Lyft
LYFT
$5.57B
| $20M | 0.02% |
519,700
-148,900
| -22% | -$5.83M |
|
545
CALL
Invesco DB Base Metals Fund
DBB
$309M
| $19.9M | 0.02% |
918,900
+821,700
| +845% | +$19.8M |
|
546
Alphabet (Google) Class A
GOOGL
$4.17T
| $19.9M | 0.02% |
+143,180
| New | +$19.4M |
|
547
CALL
Constellation Brands
STZ
$22.6B
| $19.9M | 0.02% |
86,400
+53,800
| +165% | +$12.4M |
|
|
ZEN
548
PUT
DELISTED
ZENDESK INC
ZEN
| $19.9M | 0.02% |
165,300
-75,300
| -31% | -$8.18M |
|
549
Sea Limited
SE
$64.2B
| $19.8M | 0.02% |
164,947
+85,711
| +108% | +$12.1M |
|
550
PUT
SoFi Technologies
SOFI
$21.9B
| $19.7M | 0.02% |
2,088,700
+333,000
| +19% | +$3.82M |
|
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.