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 | |
|---|---|---|---|---|---|---|
1401
CALL
Methanex
MEOH
$4.35B
| $4.23M | ﹤0.01% |
77,600
+58,600
| +308% | +$2.87M |
|
1402
Global X Lithium & Battery Tech ETF
LIT
$1.49B
| $4.22M | ﹤0.01% |
54,812
+32,077
| +141% | +$2.45M |
|
1403
PUT
Alnylam Pharmaceuticals
ALNY
$36.1B
| $4.2M | ﹤0.01% |
25,700
-8,100
| -24% | -$1.23M |
|
1404
PUT
Johnson Controls International
JCI
$87B
| $4.2M | ﹤0.01% |
64,000
-1,100
| -2% | -$75.7K |
|
1405
CALL
Hewlett Packard
HPE
$63.1B
| $4.19M | ﹤0.01% |
250,800
+137,200
| +121% | +$2.3M |
|
1406
CALL
Regeneron Pharmaceuticals
REGN
$69.1B
| $4.19M | ﹤0.01% |
6,000
-9,600
| -62% | -$6.07M |
|
1407
Baker Hughes
BKR
$57B
| $4.18M | ﹤0.01% |
114,855
+77,528
| +208% | +$2.35M |
|
1408
Danaos Corp
DAC
$2.54B
| $4.17M | ﹤0.01% |
+40,708
| New | +$3.7M |
|
1409
PUT
Chubb
CB
$139B
| $4.17M | ﹤0.01% |
19,500
+4,800
| +33% | +$975K |
|
1410
PUT
Neurocrine Biosciences
NBIX
$17.7B
| $4.16M | ﹤0.01% |
44,400
+26,500
| +148% | +$2.25M |
|
1411
PUT
Louisiana-Pacific
LPX
$5.16B
| $4.16M | ﹤0.01% |
66,900
+43,300
| +183% | +$2.99M |
|
1412
CALL
InMode
INMD
$875M
| $4.15M | ﹤0.01% |
112,500
-1,900
| -2% | -$85.1K |
|
1413
KE Holdings
BEKE
$16.8B
| $4.14M | ﹤0.01% |
335,151
+236,103
| +238% | +$4.21M |
|
1414
CALL
Alpha Metallurgical Resources
AMR
$1.81B
| $4.14M | ﹤0.01% |
31,400
+29,200
| +1,327% | +$2.68M |
|
1415
PUT
ScottsMiracle-Gro
SMG
$4.04B
| $4.13M | ﹤0.01% |
33,600
-1,300
| -4% | -$182K |
|
1416
CALL
Yum! Brands
YUM
$40.8B
| $4.12M | ﹤0.01% |
34,800
+9,900
| +40% | +$1.22M |
|
1417
PUT
Citizens Financial Group
CFG
$30.3B
| $4.11M | ﹤0.01% |
90,700
-116,700
| -56% | -$6M |
|
1418
CALL
Texas Roadhouse
TXRH
$12.7B
| $4.11M | ﹤0.01% |
49,100
+19,700
| +67% | +$1.69M |
|
1419
PUT
Revolve Group
RVLV
$1.79B
| $4.11M | ﹤0.01% |
76,500
+70,900
| +1,266% | +$3.6M |
|
1420
PUT
MKS Inc
MKSI
$22.3B
| $4.09M | ﹤0.01% |
27,300
+4,200
| +18% | +$653K |
|
1421
PUT
Matador Resources
MTDR
$6.36B
| $4.09M | ﹤0.01% |
77,300
+57,300
| +287% | +$2.71M |
|
|
1422
PUT
InMode
INMD
$875M
| $4.08M | ﹤0.01% |
110,500
-13,400
| -11% | -$600K |
|
1423
Peabody Energy
BTU
$2.78B
| $4.07M | ﹤0.01% |
166,007
+61,351
| +59% | +$1.04M |
|
1424
PUT
Nektar Therapeutics
NKTR
$2.39B
| $4.07M | ﹤0.01% |
50,313
+48,386
| +2,511% | +$7.16M |
|
1425
PUT
Bloom Energy
BE
$53.4B
| $4.06M | ﹤0.01% |
168,100
-47,200
| -22% | -$922K |
|
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.