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 | |
|---|---|---|---|---|---|---|
1776
CALL
Trupanion
TRUP
$1.15B
| $2.75M | ﹤0.01% |
30,900
+18,700
| +153% | +$1.72M |
|
|
SIX
1777
CALL
DELISTED
Six Flags Entertainment Corp.
SIX
| $2.75M | ﹤0.01% |
63,200
-35,700
| -36% | -$1.5M |
|
|
ZNGA
1778
DELISTED
ZYNGA INC. CL A COMMON
ZNGA
| $2.75M | ﹤0.01% |
297,519
-267,381
| -47% | -$2.35M |
|
1779
CALL
Campbell Soup
CPB
$6.42B
| $2.75M | ﹤0.01% |
61,600
+16,600
| +37% | +$734K |
|
|
MRSH
1780
PUT
Marsh
MRSH
$86.5B
| $2.74M | ﹤0.01% |
16,100
-19,300
| -55% | -$3.04M |
|
1781
CALL
indie Semiconductor
INDI
$784M
| $2.74M | ﹤0.01% |
351,100
-8,000
| -2% | -$65.6K |
|
|
PDCE
1782
PUT
DELISTED
PDC Energy, Inc.
PDCE
| $2.74M | ﹤0.01% |
37,700
+23,800
| +171% | +$1.47M |
|
1783
Hyatt Hotels
H
$15.5B
| $2.74M | ﹤0.01% |
28,695
+24,783
| +634% | +$2.33M |
|
1784
Invesco Senior Loan ETF
BKLN
$6.77B
| $2.74M | ﹤0.01% |
+125,687
| New | +$2.75M |
|
1785
Crocs
CROX
$5.49B
| $2.73M | ﹤0.01% |
35,804
+35,279
| +6,720% | +$3.34M |
|
|
BINI
1786
CALL
DELISTED
Bollinger Innovations
BINI
| – | – |
0
| – | – |
|
1787
CALL
Bloom Energy
BE
$82.3B
| $2.73M | ﹤0.01% |
113,100
-85,600
| -43% | -$1.67M |
|
|
EBIX
1788
DELISTED
Ebix Inc
EBIX
| $2.73M | ﹤0.01% |
82,359
+74,360
| +930% | +$2.32M |
|
1789
Vanguard FTSE Europe ETF
VGK
$31B
| $2.72M | ﹤0.01% |
43,712
+26,169
| +149% | +$1.68M |
|
1790
CALL
US Foods
USFD
$22.4B
| $2.71M | ﹤0.01% |
72,000
+43,100
| +149% | +$1.57M |
|
|
SLCA
1791
CALL
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
| $2.71M | ﹤0.01% |
145,200
+12,700
| +10% | +$161K |
|
|
HAAC
1792
CALL
DELISTED
Health Assurance Acquisition Corp. Class A Common Stock
HAAC
| $2.71M | ﹤0.01% |
275,100
-217,800
| -44% | -$2.14M |
|
1793
PUT
Trex
TREX
$4.67B
| $2.7M | ﹤0.01% |
41,400
+37,900
| +1,083% | +$3.37M |
|
|
SAVE
1794
PUT
DELISTED
Spirit Airlines, Inc.
SAVE
| $2.7M | ﹤0.01% |
123,600
-201,100
| -62% | -$4.6M |
|
1795
PUT
Privia Health
PRVA
$2.67B
| $2.7M | ﹤0.01% |
101,100
+100,300
| +12,538% | +$2.37M |
|
1796
CALL
Microvision
MVIS
$50.5M
| $2.7M | ﹤0.01% |
38,507
+10,120
| +36% | +$599K |
|
1797
PUT
AB InBev
BUD
$157B
| $2.7M | ﹤0.01% |
44,900
-129,100
| -74% | -$7.96M |
|
1798
CALL
Stride
LRN
$3.45B
| $2.69M | ﹤0.01% |
74,100
+41,400
| +127% | +$1.37M |
|
|
CALY
1799
CALL
Callaway Golf Company
CALY
$2.8B
| $2.69M | ﹤0.01% |
114,800
-92,300
| -45% | -$2.24M |
|
1800
iShares 3-7 Year Treasury Bond ETF
IEI
$17.5B
| $2.68M | ﹤0.01% |
+21,933
| New | +$2.75M |
|
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.