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 | Miscellaneous | 97.72% |
| 2 | Technology | 0.67% |
| 3 | Consumer Discretionary | 0.38% |
| 4 | Industrials | 0.24% |
| 5 | Healthcare | 0.22% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
501
CALL
Norwegian Cruise Line
NCLH
$7.15B
| $22.2M | 0.02% |
1,013,300
-536,600
| -35% | -$11M |
|
502
CALL
Nucor
NUE
$59.2B
| $22.2M | 0.02% |
149,100
-20,200
| -12% | -$2.48M |
|
503
PUT
American Tower
AMT
$81.9B
| $22M | 0.02% |
87,700
+23,200
| +36% | +$5.66M |
|
|
COUP
504
PUT
DELISTED
Coupa Software Incorporated
COUP
| $21.9M | 0.02% |
215,600
+97,500
| +83% | +$11.8M |
|
505
PUT
RTX Corp
RTX
$271B
| $21.8M | 0.02% |
220,400
-30,100
| -12% | -$2.85M |
|
506
PUT
Marathon Petroleum
MPC
$109B
| $21.8M | 0.02% |
255,100
-224,700
| -47% | -$17.1M |
|
|
BBBY
507
CALL
DELISTED
Bed Bath & Beyond Inc
BBBY
| $21.8M | 0.02% |
965,900
+382,500
| +66% | +$6.65M |
|
508
PUT
Kraft Heinz
KHC
$29.5B
| $21.7M | 0.02% |
551,300
+264,400
| +92% | +$9.9M |
|
509
PUT
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$244M
| $21.7M | 0.02% |
1,701,600
+134,000
| +9% | +$4.18M |
|
510
CALL
MongoDB
MDB
$29.7B
| $21.7M | 0.02% |
48,900
+6,100
| +14% | +$2.39M |
|
511
PUT
Marathon Digital Holdings
MARA
$4.37B
| $21.6M | 0.02% |
774,000
-92,200
| -11% | -$2.4M |
|
512
CALL
Riot Platforms
RIOT
$8.18B
| $21.6M | 0.02% |
1,021,700
-223,700
| -18% | -$4.04M |
|
513
CALL
SAP
SAP
$248B
| $21.6M | 0.02% |
194,800
+132,100
| +211% | +$16.1M |
|
|
SIVB
514
PUT
DELISTED
SVB Financial Group
SIVB
| $21.6M | 0.02% |
38,600
+30,100
| +354% | +$18.3M |
|
515
PUT
PENN Entertainment
PENN
$2.29B
| $21.6M | 0.02% |
508,700
-63,200
| -11% | -$2.89M |
|
516
CALL
Best Buy
BBY
$19B
| $21.6M | 0.02% |
237,300
+72,200
| +44% | +$7.15M |
|
517
PUT
MGM Resorts International
MGM
$10.4B
| $21.4M | 0.02% |
510,800
+70,000
| +16% | +$3.01M |
|
|
EA
518
CALL
DELISTED
Electronic Arts
EA
| $21.4M | 0.02% |
168,800
-20,600
| -11% | -$2.68M |
|
519
PUT
Southwest Airlines
LUV
$19.4B
| $21.3M | 0.02% |
465,000
-265,600
| -36% | -$11.7M |
|
520
PUT
United States Natural Gas Fund
UNG
$572M
| $21.2M | 0.02% |
269,075
+172,325
| +178% | +$10.9M |
|
521
PUT
APA Corp
APA
$15B
| $21.1M | 0.02% |
510,800
+222,900
| +77% | +$7.78M |
|
522
PUT
Mondelez International
MDLZ
$78.2B
| $21.1M | 0.02% |
335,700
+179,000
| +114% | +$11.7M |
|
523
CALL
Okta
OKTA
$29.8B
| $21M | 0.02% |
139,400
+49,200
| +55% | +$8.82M |
|
524
CALL
Antero Resources
AR
$12.1B
| $21M | 0.02% |
687,800
+70,800
| +11% | +$1.59M |
|
|
PXD
525
CALL
DELISTED
Pioneer Natural Resource Co.
PXD
| $21M | 0.02% |
83,900
+34,300
| +69% | +$7.75M |
|
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's Q1 2022 filing shows 1,600 new, 4,440 increased, 4,085 reduced and 1,638 closed positions. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M. The largest sale was State Street Financial Select Sector SPDR ETF, an estimated $42.8M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, up from 97% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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 1,600 new positions and closed 1,638 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.