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 | |
|---|---|---|---|---|---|---|
3251
Caleres
CAL
$412M
| $771K | ﹤0.01% |
39,929
+25,092
| +169% | +$544K |
|
3252
CALL
Worthington Enterprises
WOR
$2.77B
| $771K | ﹤0.01% |
24,330
+23,681
| +3,649% | +$818K |
|
3253
PUT
Wyndham Hotels & Resorts
WH
$5.46B
| $770K | ﹤0.01% |
9,100
+6,500
| +250% | +$553K |
|
3254
Lumentum
LITE
$55B
| $769K | ﹤0.01% |
7,880
-1,485
| -16% | -$145K |
|
3255
Tradr 2X Long Innovation ETFShort Innovation Daily ETF
SARK
$44.3M
| $769K | ﹤0.01% |
5,548
+4,485
| +422% | +$636K |
|
3256
CALL
Arqit Quantum
ARQQ
$310M
| $768K | ﹤0.01% |
1,972
-652
| -25% | -$263K |
|
3257
CALL
Element Solutions
ESI
$9B
| $768K | ﹤0.01% |
35,100
-199,500
| -85% | -$4.59M |
|
3258
PUT
Beam Therapeutics
BEAM
$2.59B
| $767K | ﹤0.01% |
13,400
+12,400
| +1,240% | +$813K |
|
3259
PUT
ING
ING
$95.2B
| $767K | ﹤0.01% |
73,600
+56,300
| +325% | +$733K |
|
|
TRVG
3260
PUT
trivago
TRVG
$380M
| $766K | ﹤0.01% |
65,000
-1,380
| -2% | -$15.5K |
|
3261
PUT
Sarepta Therapeutics
SRPT
$1.72B
| $765K | ﹤0.01% |
9,800
-57,900
| -86% | -$4.43M |
|
3262
Alight
ALIT
$532M
| $764K | ﹤0.01% |
3,839
-2,706
| -41% | -$533K |
|
3263
CALL
Liberty Energy
LBRT
$2.83B
| $764K | ﹤0.01% |
51,600
+44,900
| +670% | +$574K |
|
3264
CALL
Ameris Bancorp
ABCB
$5.82B
| $763K | ﹤0.01% |
17,400
-2,200
| -11% | -$108K |
|
3265
Magnite
MGNI
$2.75B
| $763K | ﹤0.01% |
57,770
-17,703
| -23% | -$239K |
|
3266
CALL
AeroVironment
AVAV
$7.87B
| $762K | ﹤0.01% |
8,100
-15,700
| -66% | -$1.09M |
|
3267
PUT
Casella Waste Systems
CWST
$5.74B
| $762K | ﹤0.01% |
+8,700
| New | +$693K |
|
3268
PUT
New Oriental
EDU
$7.92B
| $762K | ﹤0.01% |
66,270
-74,820
| -53% | -$1.09M |
|
3269
CALL
ImmunityBio
IBRX
$7.32B
| $761K | ﹤0.01% |
135,700
+45,300
| +50% | +$278K |
|
|
ADAM
3270
Adamas Trust
ADAM
$788M
| $761K | ﹤0.01% |
52,171
+17,641
| +51% | +$258K |
|
3271
Take-Two Interactive
TTWO
$44.7B
| $761K | ﹤0.01% |
4,956
-16,086
| -76% | -$2.57M |
|
3272
State Street Technology Select Sector SPDR ETF
XLK
$113B
| $761K | ﹤0.01% |
9,580
-105,720
| -92% | -$8.3M |
|
3273
Cinemark Holdings
CNK
$3.88B
| $760K | ﹤0.01% |
+43,994
| New | +$731K |
|
3274
Sysco
SYY
$40B
| $760K | ﹤0.01% |
9,313
-10,885
| -54% | -$880K |
|
|
CCMP
3275
PUT
DELISTED
CMC Materials, Inc. Common Stock
CCMP
| $760K | ﹤0.01% |
4,100
+1,000
| +32% | +$184K |
|
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.