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 | |
|---|---|---|---|---|---|---|
|
WEBR
5626
DELISTED
Weber Inc.
WEBR
| $145K | ﹤0.01% |
+14,836
| New | +$160K |
|
5627
PUT
Ameris Bancorp
ABCB
$5.85B
| $144K | ﹤0.01% |
3,300
+2,400
| +267% | +$118K |
|
5628
Brink's
BCO
$4.88B
| $144K | ﹤0.01% |
2,119
+1,350
| +176% | +$92.4K |
|
5629
CALL
Diana Shipping
DSX
$302M
| $144K | ﹤0.01% |
35,351
+26,952
| +321% | +$94.4K |
|
5630
Evolus
EOLS
$385M
| $144K | ﹤0.01% |
12,891
-10,856
| -46% | -$92.5K |
|
5631
CALL
GeoPark
GPRK
$633M
| $144K | ﹤0.01% |
+9,700
| New | +$137K |
|
5632
nVent Electric
NVT
$24.9B
| $144K | ﹤0.01% |
4,155
+3,841
| +1,223% | +$134K |
|
5633
CALL
PennantPark Floating Rate Capital
PFLT
$689M
| $144K | ﹤0.01% |
10,700
+8,400
| +365% | +$110K |
|
5634
CALL
TD Synnex
SNX
$20.4B
| $144K | ﹤0.01% |
1,400
+1,200
| +600% | +$128K |
|
5635
PUT
Veritone
VERI
$101M
| $144K | ﹤0.01% |
7,900
-6,700
| -46% | -$115K |
|
|
FORG
5636
CALL
DELISTED
ForgeRock, Inc.
FORG
| $144K | ﹤0.01% |
6,600
-18,200
| -73% | -$307K |
|
|
CLVS
5637
PUT
DELISTED
Clovis Oncology, Inc.
CLVS
| $144K | ﹤0.01% |
71,700
+30,300
| +73% | +$59.5K |
|
5638
CALL
Acadia Realty Trust
AKR
$3.09B
| $143K | ﹤0.01% |
+6,600
| New | +$139K |
|
|
ALEX
5639
CALL
DELISTED
Alexander & Baldwin
ALEX
| $143K | ﹤0.01% |
+6,200
| New | +$143K |
|
5640
CALL
Citi Trends
CTRN
$555M
| $143K | ﹤0.01% |
4,700
-3,900
| -45% | -$182K |
|
5641
PUT
Fidus Investment
FDUS
$749M
| $143K | ﹤0.01% |
7,100
+7,000
| +7,000% | +$131K |
|
5642
CALL
Garrett Motion
GTX
$5.81B
| $143K | ﹤0.01% |
19,900
-3,700
| -16% | -$26.5K |
|
5643
McCormick & Company Non-Voting
MKC
$13.7B
| $143K | ﹤0.01% |
+1,440
| New | +$141K |
|
5644
CALL
RadNet
RDNT
$5.02B
| $143K | ﹤0.01% |
6,400
-100
| -2% | -$2.45K |
|
5645
PUT
Telephone and Data Systems
TDS
$3.82B
| $143K | ﹤0.01% |
7,600
+4,300
| +130% | +$83.2K |
|
5646
CALL
Tecnoglass
TGLS
$1.93B
| $143K | ﹤0.01% |
5,700
-7,700
| -57% | -$173K |
|
5647
US Commodity Index
USCI
$369M
| $143K | ﹤0.01% |
+2,593
| New | +$130K |
|
5648
Arq
ARQ
$84.6M
| $143K | ﹤0.01% |
22,991
+10,765
| +88% | +$68.3K |
|
|
GATO
5649
DELISTED
Gatos Silver, Inc.
GATO
| $143K | ﹤0.01% |
33,293
+24,187
| +266% | +$133K |
|
|
SLGC
5650
DELISTED
SomaLogic, Inc. Class A Common Stock
SLGC
| $143K | ﹤0.01% |
17,951
+16,789
| +1,445% | +$148K |
|
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.