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 | |
|---|---|---|---|---|---|---|
2676
PUT
Kimbell Royalty Partners
KRP
$1.47B
| $1.21M | ﹤0.01% |
74,700
-6,200
| -8% | -$96.3K |
|
2677
PUT
TG Therapeutics
TGTX
$8.58B
| $1.21M | ﹤0.01% |
127,700
+88,300
| +224% | +$1.02M |
|
|
HUT
2678
PUT
Hut 8
HUT
$12.4B
| $1.21M | ﹤0.01% |
43,880
+6,340
| +17% | +$194K |
|
2679
CALL
Sprout Social
SPT
$455M
| $1.21M | ﹤0.01% |
15,100
-12,800
| -46% | -$877K |
|
|
WEBR
2680
PUT
DELISTED
Weber Inc.
WEBR
| $1.21M | ﹤0.01% |
123,000
+82,900
| +207% | +$893K |
|
2681
FTAI Aviation
FTAI
$22.2B
| $1.21M | ﹤0.01% |
+54,894
| New | +$1.22M |
|
2682
PUT
IDEX
IEX
$16.5B
| $1.21M | ﹤0.01% |
6,300
+5,600
| +800% | +$1.14M |
|
2683
Aspen Aerogels
ASPN
$387M
| $1.21M | ﹤0.01% |
+34,998
| New | +$1.14M |
|
|
DNMR
2684
CALL
DELISTED
Danimer Scientific, Inc.
DNMR
| $1.21M | ﹤0.01% |
5,145
+3,462
| +206% | +$699K |
|
|
SVFAU
2685
CALL
DELISTED
SVF Investment Corp. Unit
SVFAU
| $1.21M | ﹤0.01% |
123,000
-221,900
| -64% | -$2.21M |
|
2686
CALL
Healthpeak Properties
DOC
$15.4B
| $1.2M | ﹤0.01% |
35,100
+19,000
| +118% | +$640K |
|
|
MTA
2687
PUT
Metalla Royalty & Streaming
MTA
$704M
| $1.2M | ﹤0.01% |
170,300
+95,600
| +128% | +$667K |
|
2688
CALL
Newell Brands
NWL
$2.16B
| $1.2M | ﹤0.01% |
56,200
-43,900
| -44% | -$1.01M |
|
|
CNR
2689
CALL
DELISTED
Cornerstone Building Brands, Inc.
CNR
| $1.2M | ﹤0.01% |
49,500
+28,700
| +138% | +$570K |
|
2690
PUT
State Street
STT
$50.9B
| $1.2M | ﹤0.01% |
13,800
-39,300
| -74% | -$3.64M |
|
2691
CALL
Astrana Health
ASTH
$2B
| $1.2M | ﹤0.01% |
24,800
+24,600
| +12,300% | +$1.27M |
|
2692
CALL
TriNet
TNET
$2.84B
| $1.2M | ﹤0.01% |
12,200
+9,000
| +281% | +$796K |
|
2693
PUT
Zebra Technologies
ZBRA
$12.4B
| $1.2M | ﹤0.01% |
2,900
-3,300
| -53% | -$1.52M |
|
2694
Global X Copper Miners ETF NEW
COPX
$7.13B
| $1.2M | ﹤0.01% |
26,324
-13,806
| -34% | -$568K |
|
|
BLDP
2695
CALL
Ballard Power Systems
BLDP
$874M
| $1.2M | ﹤0.01% |
102,800
+41,400
| +67% | +$441K |
|
|
SFIX
2696
PUT
Stitch Fix
SFIX
$478M
| $1.2M | ﹤0.01% |
118,800
+19,300
| +19% | +$267K |
|
|
NVMI
2697
Nova
NVMI
$13.9B
| $1.2M | ﹤0.01% |
10,979
-3,488
| -24% | -$407K |
|
2698
CALL
Kosmos Energy
KOS
$1.56B
| $1.19M | ﹤0.01% |
166,000
+80,200
| +93% | +$409K |
|
2699
CALL
Leggett & Platt
LEG
$1.52B
| $1.19M | ﹤0.01% |
34,300
+25,400
| +285% | +$974K |
|
2700
CALL
U-Haul Holding Co
UHAL
$14B
| $1.19M | ﹤0.01% |
20,000
+17,000
| +567% | +$1.05M |
|
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.