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 | |
|---|---|---|---|---|---|---|
3526
CALL
Cohu
COHU
$2.26B
| $633K | ﹤0.01% |
21,400
+14,400
| +206% | +$460K |
|
3527
PUT
Fortive
FTV
$19.2B
| $633K | ﹤0.01% |
13,801
+2,256
| +20% | +$112K |
|
3528
CALL
Archer Aviation
ACHR
$3.78B
| $632K | ﹤0.01% |
131,400
-114,500
| -47% | -$421K |
|
3529
Ameriprise Financial
AMP
$47.6B
| $632K | ﹤0.01% |
2,105
-658
| -24% | -$199K |
|
3530
PUT
Century Casinos
CNTY
$32.6M
| $632K | ﹤0.01% |
+52,900
| New | +$599K |
|
3531
CALL
Alphatec Holdings
ATEC
$1.33B
| $631K | ﹤0.01% |
54,900
+44,900
| +449% | +$486K |
|
3532
PUT
Ceragon Networks
CRNT
$197M
| $631K | ﹤0.01% |
296,700
+262,200
| +760% | +$573K |
|
3533
PUT
Pembina Pipeline
PBA
$29B
| $631K | ﹤0.01% |
16,800
+11,900
| +243% | +$402K |
|
|
EVRI
3534
PUT
DELISTED
Everi Holdings
EVRI
| $630K | ﹤0.01% |
30,000
+22,600
| +305% | +$481K |
|
3535
Shake Shack
SHAK
$2.48B
| $630K | ﹤0.01% |
+9,287
| New | +$639K |
|
3536
CALL
HEICO Corp Class A
HEI.A
$36.3B
| $629K | ﹤0.01% |
4,100
+2,200
| +116% | +$266K |
|
3537
PUT
Motorola Solutions
MSI
$70.3B
| $629K | ﹤0.01% |
2,600
-3,200
| -55% | -$744K |
|
3538
Orion
OEC
$379M
| $629K | ﹤0.01% |
+39,437
| New | +$679K |
|
3539
CALL
American Homes 4 Rent
AMH
$12B
| $628K | ﹤0.01% |
15,700
+15,600
| +15,600% | +$615K |
|
3540
PUT
Equinox Gold
EQX
$7.51B
| $627K | ﹤0.01% |
75,900
-26,400
| -26% | -$186K |
|
3541
CALL
Yelp
YELP
$1.45B
| $627K | ﹤0.01% |
18,400
-16,900
| -48% | -$580K |
|
|
ACB
3542
PUT
Aurora Cannabis
ACB
$170M
| $626K | ﹤0.01% |
15,670
-7,230
| -32% | -$306K |
|
3543
PUT
Clearfield
CLFD
$436M
| $626K | ﹤0.01% |
9,600
+9,000
| +1,500% | +$565K |
|
|
FREE
3544
CALL
DELISTED
Whole Earth Brands, Inc. Class A Common Stock
FREE
| $626K | ﹤0.01% |
87,500
+85,100
| +3,546% | +$762K |
|
3545
CALL
Prospect Capital
PSEC
$1.12B
| $625K | ﹤0.01% |
75,500
+26,600
| +54% | +$221K |
|
3546
CleanSpark
CLSK
$3.6B
| $624K | ﹤0.01% |
50,497
+2,252
| +5% | +$20.8K |
|
3547
Yeti Holdings
YETI
$3.86B
| $624K | ﹤0.01% |
+10,410
| New | +$672K |
|
|
PTRA
3548
PUT
DELISTED
Proterra Inc. Common Stock
PTRA
| $624K | ﹤0.01% |
83,000
+10,800
| +15% | +$87.5K |
|
|
FINV
3549
CALL
FinVolution Group
FINV
$1.15B
| $622K | ﹤0.01% |
156,700
-54,300
| -26% | -$226K |
|
|
FUV
3550
PUT
DELISTED
Arcimoto, Inc. Common Stock
FUV
| $622K | ﹤0.01% |
4,705
+2,700
| +135% | +$351K |
|
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.