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 | |
|---|---|---|---|---|---|---|
3401
PUT
nLIGHT
LASR
$3.82B
| $698K | ﹤0.01% |
+40,300
| New | +$758K |
|
3402
PUT
Magnolia Oil & Gas
MGY
$5.53B
| $697K | ﹤0.01% |
29,500
-42,200
| -59% | -$927K |
|
|
PR
3403
Permian Resources
PR
$17B
| $697K | ﹤0.01% |
86,403
-63,288
| -42% | -$500K |
|
3404
Blue Owl Capital
OWL
$6.54B
| $696K | ﹤0.01% |
+54,931
| New | +$696K |
|
|
JOYY
3405
JOYY Inc
JOYY
$3.77B
| $696K | ﹤0.01% |
18,965
-8,877
| -32% | -$401K |
|
|
DCT
3406
PUT
DELISTED
Duck Creek Technologies, Inc. Common Stock
DCT
| $696K | ﹤0.01% |
31,500
+29,100
| +1,213% | +$696K |
|
3407
CALL
Milestone Pharmaceuticals
MIST
$141M
| $695K | ﹤0.01% |
108,400
+107,600
| +13,450% | +$672K |
|
|
BERY
3408
CALL
DELISTED
Berry Global Group, Inc.
BERY
| $695K | ﹤0.01% |
13,068
-10,563
| -45% | -$618K |
|
3409
CALL
Tradeweb Markets
TW
$21.7B
| $694K | ﹤0.01% |
7,900
+5,500
| +229% | +$477K |
|
3410
PUT
Blackstone Mortgage Trust
BXMT
$2.8B
| $693K | ﹤0.01% |
21,800
+10,000
| +85% | +$314K |
|
|
HPP
3411
CALL
Hudson Pacific Properties
HPP
$794M
| $693K | ﹤0.01% |
3,571
+2,114
| +145% | +$380K |
|
3412
PUT
Insulet
PODD
$11.4B
| $692K | ﹤0.01% |
2,600
+1,700
| +189% | +$417K |
|
|
SLGC
3413
CALL
DELISTED
SomaLogic, Inc. Class A Common Stock
SLGC
| $692K | ﹤0.01% |
86,400
+75,800
| +715% | +$668K |
|
3414
American Water Works
AWK
$26.3B
| $691K | ﹤0.01% |
4,180
-2,196
| -34% | -$348K |
|
3415
CALL
Qfin Holdings
QFIN
$1.65B
| $691K | ﹤0.01% |
44,900
+6,900
| +18% | +$129K |
|
|
FLG
3416
CALL
Flagstar Bank National Association
FLG
$5.74B
| $691K | ﹤0.01% |
21,500
-9,133
| -30% | -$321K |
|
3417
CALL
TaskUs
TASK
$531M
| $688K | ﹤0.01% |
17,900
+3,900
| +28% | +$137K |
|
3418
Enterprise Products Partners
EPD
$82.5B
| $687K | ﹤0.01% |
26,656
-48,025
| -64% | -$1.17M |
|
3419
CALL
Array Technologies
ARRY
$848M
| $686K | ﹤0.01% |
60,900
+23,900
| +65% | +$269K |
|
3420
Metallus
MTUS
$869M
| $684K | ﹤0.01% |
31,280
+30,260
| +2,967% | +$532K |
|
3421
CALL
ING
ING
$95.7B
| $683K | ﹤0.01% |
65,500
+36,200
| +124% | +$472K |
|
|
BZUN
3422
PUT
Baozun
BZUN
$164M
| $682K | ﹤0.01% |
79,600
-53,000
| -40% | -$586K |
|
|
WWE
3423
DELISTED
World Wrestling Entertainment
WWE
| $682K | ﹤0.01% |
10,924
+8,647
| +380% | +$477K |
|
|
SUMO
3424
CALL
DELISTED
Sumo Logic, Inc. Common Stock
SUMO
| $682K | ﹤0.01% |
58,500
-5,900
| -9% | -$68.4K |
|
|
CTLP
3425
DELISTED
Cantaloupe
CTLP
| $681K | ﹤0.01% |
100,595
+58,039
| +136% | +$440K |
|
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.