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 | |
|---|---|---|---|---|---|---|
6951
PUT
Itron
ITRI
$4.36B
| $57K | ﹤0.01% |
1,100
+1,000
| +1,000% | +$55.9K |
|
6952
Kingstone Companies
KINS
$289M
| $57K | ﹤0.01% |
10,753
+3,652
| +51% | +$19.3K |
|
6953
Ramaco Resources Class A
METC
$599M
| $57K | ﹤0.01% |
3,745
-1,059
| -22% | -$15.4K |
|
6954
NiSource
NI
$21.3B
| $57K | ﹤0.01% |
+1,818
| New | +$52.8K |
|
6955
RPC Inc
RES
$1.24B
| $57K | ﹤0.01% |
5,417
-36,540
| -87% | -$292K |
|
6956
ProShares UltraShort Financials
SKF
$10.3M
| $57K | ﹤0.01% |
861
-1,787
| -67% | -$122K |
|
6957
Silgan Holdings
SLGN
$4.23B
| $57K | ﹤0.01% |
1,250
-3,470
| -74% | -$150K |
|
6958
PUT
SelectQuote
SLQT
$132M
| $57K | ﹤0.01% |
20,700
-23,200
| -53% | -$112K |
|
6959
CALL
Televisa
TV
$1.48B
| $57K | ﹤0.01% |
4,900
-114,400
| -96% | -$1.19M |
|
6960
CALL
Energous
WATT
$77.6M
| $57K | ﹤0.01% |
79
-46
| -37% | -$31.9K |
|
6961
PUT
Werner Enterprises
WERN
$2.24B
| $57K | ﹤0.01% |
1,400
-10,700
| -88% | -$471K |
|
6962
CALL
West Fraser Timber
WFG
$5.08B
| $57K | ﹤0.01% |
700
+400
| +133% | +$37.6K |
|
|
CURO
6963
CALL
DELISTED
CURO Group Holdings Corp.
CURO
| $57K | ﹤0.01% |
4,400
-700
| -14% | -$9.65K |
|
|
SWIR
6964
DELISTED
Sierra Wireless
SWIR
| $57K | ﹤0.01% |
3,207
-6,620
| -67% | -$111K |
|
|
ECOL
6965
DELISTED
US Ecology, Inc.
ECOL
| $57K | ﹤0.01% |
+1,207
| New | +$48.2K |
|
|
FLOW
6966
CALL
DELISTED
SPX FLOW, Inc.
FLOW
| $57K | ﹤0.01% |
43,400
-2,500
| -5% | -$215K |
|
|
ASA
6967
CALL
ASA Gold and Precious Metals
ASA
$919M
| $56K | ﹤0.01% |
2,500
+200
| +9% | +$4.35K |
|
6968
JPMorgan BetaBuilders Japan ETF
BBJP
$17.5B
| $56K | ﹤0.01% |
+1,113
| New | +$58.2K |
|
6969
BioAtla
BCAB
$5.46M
| $56K | ﹤0.01% |
225
+54
| +32% | +$22.6K |
|
6970
CALL
CEVA Inc
CEVA
$910M
| $56K | ﹤0.01% |
1,400
-500
| -26% | -$19.4K |
|
6971
CALL
Compass Minerals
CMP
$1.23B
| $56K | ﹤0.01% |
900
+300
| +50% | +$17K |
|
6972
PUT
Citius Pharmaceuticals
CTXR
$15.6M
| $56K | ﹤0.01% |
+1,252
| New | +$49.4K |
|
|
FLNT
6973
CALL
Fluent
FLNT
$102M
| $56K | ﹤0.01% |
4,550
| – | – |
|
6974
Funko
FNKO
$326M
| $56K | ﹤0.01% |
3,272
+2,272
| +227% | +$39.7K |
|
6975
PUT
Alliant Energy
LNT
$18.3B
| $56K | ﹤0.01% |
900
+500
| +125% | +$29.7K |
|
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.