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 | |
|---|---|---|---|---|---|---|
2726
CALL
TMC The Metals Company
TMC
$1.59B
| $1.17M | ﹤0.01% |
453,300
+103,000
| +29% | +$184K |
|
2727
CALL
TAL Education Group
TAL
$5.71B
| $1.17M | ﹤0.01% |
389,400
-185,900
| -32% | -$571K |
|
2728
CALL
Unum
UNM
$13.8B
| $1.17M | ﹤0.01% |
37,200
+24,500
| +193% | +$685K |
|
2729
PUT
DXC Technology
DXC
$1.63B
| $1.17M | ﹤0.01% |
35,900
-60,300
| -63% | -$1.99M |
|
|
IAA
2730
DELISTED
IAA, Inc. Common Stock
IAA
| $1.17M | ﹤0.01% |
30,604
-8,536
| -22% | -$351K |
|
|
OPTU
2731
PUT
Optimum Communications Inc
OPTU
$316M
| $1.17M | ﹤0.01% |
93,700
+21,200
| +29% | +$283K |
|
2732
CALL
Globe Life
GL
$13.5B
| $1.17M | ﹤0.01% |
11,600
-15,300
| -57% | -$1.55M |
|
2733
CALL
Alliance Resource Partners
ARLP
$3.18B
| $1.16M | ﹤0.01% |
75,500
+42,000
| +125% | +$594K |
|
2734
CALL
Old Dominion Freight Line
ODFL
$48.5B
| $1.16M | ﹤0.01% |
7,800
-19,400
| -71% | -$3.02M |
|
|
REGI
2735
PUT
DELISTED
Renewable Energy Group, Inc.
REGI
| $1.16M | ﹤0.01% |
19,200
+800
| +4% | +$38.7K |
|
2736
ATI
ATI
$27B
| $1.16M | ﹤0.01% |
+43,167
| New | +$1M |
|
|
ELME
2737
Elme Communities
ELME
$132M
| $1.16M | ﹤0.01% |
+45,385
| New | +$1.12M |
|
2738
CALL
Glaukos
GKOS
$9.02B
| $1.16M | ﹤0.01% |
20,000
+19,800
| +9,900% | +$1.05M |
|
|
NVEI
2739
DELISTED
Nuvei Corporation Subordinate Voting Shares
NVEI
| $1.16M | ﹤0.01% |
15,345
+11,098
| +261% | +$679K |
|
2740
CALL
Main Street Capital
MAIN
$4.97B
| $1.16M | ﹤0.01% |
27,100
+5,600
| +26% | +$240K |
|
2741
Shift4
FOUR
$3.84B
| $1.15M | ﹤0.01% |
+18,640
| New | +$983K |
|
|
NVTA
2742
PUT
DELISTED
Invitae Corporation
NVTA
| $1.15M | ﹤0.01% |
144,500
+7,300
| +5% | +$73.4K |
|
|
TCDA
2743
PUT
DELISTED
Tricida, Inc. Common Stock
TCDA
| $1.15M | ﹤0.01% |
140,000
+135,000
| +2,700% | +$1.22M |
|
2744
CALL
Buckle
BKE
$2.19B
| $1.15M | ﹤0.01% |
34,800
+21,300
| +158% | +$789K |
|
2745
PUT
Cheesecake Factory
CAKE
$4.21B
| $1.15M | ﹤0.01% |
28,900
-7,400
| -20% | -$283K |
|
2746
CALL
Abercrombie & Fitch
ANF
$4.17B
| $1.15M | ﹤0.01% |
35,900
+12,300
| +52% | +$427K |
|
|
CMA
2747
CALL
DELISTED
Comerica
CMA
| $1.15M | ﹤0.01% |
12,700
+100
| +0.8% | +$9.43K |
|
|
RCM
2748
PUT
DELISTED
R1 RCM Inc. Common Stock
RCM
| $1.15M | ﹤0.01% |
+42,900
| New | +$1.05M |
|
2749
Boston Properties
BXP
$11B
| $1.15M | ﹤0.01% |
8,902
+7,872
| +764% | +$954K |
|
2750
Quest Diagnostics
DGX
$25.1B
| $1.15M | ﹤0.01% |
+8,374
| New | +$1.17M |
|
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.