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 | |
|---|---|---|---|---|---|---|
3176
PUT
Safe Bulkers
SB
$781M
| $808K | ﹤0.01% |
169,900
+46,700
| +38% | +$191K |
|
|
IPOF
3177
PUT
DELISTED
Social Capital Hedosophia Holdings Corp. VI
IPOF
| $808K | ﹤0.01% |
80,000
+4,800
| +6% | +$48.3K |
|
3178
Burlington
BURL
$22B
| $807K | ﹤0.01% |
+4,434
| New | +$972K |
|
|
CMPS
3179
Compass Pathways
CMPS
$1.52B
| $807K | ﹤0.01% |
62,670
+34,599
| +123% | +$516K |
|
|
ARR
3180
PUT
Armour Residential REIT
ARR
$2.02B
| $804K | ﹤0.01% |
19,160
+16,120
| +530% | +$719K |
|
|
ETWO
3181
DELISTED
E2open Parent Holdings
ETWO
| $804K | ﹤0.01% |
91,299
-7,034
| -7% | -$63.9K |
|
|
AMRS
3182
DELISTED
Amyris Inc.
AMRS
| $804K | ﹤0.01% |
184,410
-74,957
| -29% | -$336K |
|
3183
CALL
Vaalco Energy
EGY
$594M
| $803K | ﹤0.01% |
123,100
+87,800
| +249% | +$460K |
|
3184
PUT
Kodak
KODK
$806M
| $803K | ﹤0.01% |
122,600
+44,800
| +58% | +$213K |
|
3185
Marathon Digital Holdings
MARA
$4.62B
| $803K | ﹤0.01% |
28,736
-82,438
| -74% | -$2.14M |
|
3186
PUT
Dover
DOV
$27.2B
| $800K | ﹤0.01% |
5,100
+3,400
| +200% | +$558K |
|
3187
Vicor
VICR
$9.62B
| $800K | ﹤0.01% |
11,341
+3,539
| +45% | +$318K |
|
3188
Alamos Gold
AGI
$12.4B
| $799K | ﹤0.01% |
94,899
+56,946
| +150% | +$429K |
|
|
CMA
3189
DELISTED
Comerica
CMA
| $799K | ﹤0.01% |
8,836
+357
| +4% | +$33.7K |
|
3190
CALL
Landstar System
LSTR
$6.8B
| $799K | ﹤0.01% |
5,300
| – | – |
|
3191
CALL
Tenaris
TS
$29.1B
| $799K | ﹤0.01% |
26,600
+20,900
| +367% | +$544K |
|
|
MGI
3192
CALL
DELISTED
MoneyGram International, Inc. New
MGI
| $799K | ﹤0.01% |
75,700
-17,800
| -19% | -$171K |
|
|
VG
3193
CALL
DELISTED
Vonage Holdings Corporation
VG
| $799K | ﹤0.01% |
39,400
-24,800
| -39% | -$508K |
|
|
PLCY
3194
CALL
DELISTED
EventShares U.S. Legislative Opportunities ETF
PLCY
| $798K | ﹤0.01% |
55,300
-85,200
| -61% | -$1.23M |
|
|
OLPX
3195
CALL
DELISTED
Olaplex Holdings
OLPX
| $797K | ﹤0.01% |
51,000
+6,000
| +13% | +$114K |
|
|
SHLX
3196
CALL
DELISTED
Shell Midstream Partners, L.P.
SHLX
| $797K | ﹤0.01% |
56,100
+900
| +2% | +$12K |
|
3197
CALL
Aemetis
AMTX
$119M
| $796K | ﹤0.01% |
62,900
+38,200
| +155% | +$421K |
|
|
FAZE
3198
CALL
DELISTED
FaZe Holdings Inc. Common Stock
FAZE
| $795K | ﹤0.01% |
80,200
-12,200
| -13% | -$121K |
|
3199
CALL
Entergy
ETR
$54.1B
| $793K | ﹤0.01% |
13,600
+4,600
| +51% | +$252K |
|
3200
PUT
Freshworks
FRSH
$2.84B
| $793K | ﹤0.01% |
44,300
-600
| -1% | -$12.2K |
|
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.