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 | |
|---|---|---|---|---|---|---|
6176
PUT
Amkor Technology
AMKR
$12.4B
| $97K | ﹤0.01% |
4,500
-6,000
| -57% | -$136K |
|
6177
Burford Capital
BUR
$903M
| $97K | ﹤0.01% |
10,648
+7,404
| +228% | +$70.5K |
|
6178
CALL
Crane NXT
CXT
$2.99B
| $97K | ﹤0.01% |
2,591
-864
| -25% | -$31.1K |
|
|
FBRT
6179
PUT
Franklin BSP Realty Trust
FBRT
$630M
| $97K | ﹤0.01% |
7,000
-44,500
| -86% | -$608K |
|
6180
CALL
Invesco CurrencyShares Swiss Franc Trust
FXF
$414M
| $97K | ﹤0.01% |
1,000
-4,800
| -83% | -$467K |
|
6181
PUT
Greif
GEF
$4.92B
| $97K | ﹤0.01% |
1,500
-4,400
| -75% | -$263K |
|
6182
CALL
G-III Apparel Group
GIII
$1.54B
| $97K | ﹤0.01% |
3,600
-9,300
| -72% | -$253K |
|
6183
CALL
Hawaiian Electric Industries
HE
$2.23B
| $97K | ﹤0.01% |
2,300
+1,000
| +77% | +$41.7K |
|
|
JAMF
6184
PUT
DELISTED
Jamf
JAMF
| $97K | ﹤0.01% |
2,800
-7,100
| -72% | -$241K |
|
6185
PUT
Kodiak Sciences
KOD
$2.6B
| $97K | ﹤0.01% |
12,600
+9,400
| +294% | +$367K |
|
6186
PUT
Liberty Latin America Class C
LILAK
$1.63B
| $97K | ﹤0.01% |
11,220
+11,110
| +10,100% | +$106K |
|
6187
PUT
Manhattan Associates
MANH
$11.2B
| $97K | ﹤0.01% |
700
+500
| +250% | +$67K |
|
|
NOVA
6188
DELISTED
Sunnova Energy
NOVA
| $97K | ﹤0.01% |
4,232
-76,964
| -95% | -$1.65M |
|
6189
PUT
Shoals Technologies Group
SHLS
$1.47B
| $97K | ﹤0.01% |
5,700
-300
| -5% | -$5.2K |
|
|
STR
6190
PUT
DELISTED
Sitio Royalties
STR
| $97K | ﹤0.01% |
3,600
+3,350
| +1,340% | +$75.5K |
|
6191
CALL
Beyond Air
XAIR
$3.8M
| $97K | ﹤0.01% |
37
-88
| -70% | -$259K |
|
|
ONCT
6192
PUT
DELISTED
Oncternal Therapeutics, Inc. Common Stock
ONCT
| $97K | ﹤0.01% |
3,490
+3,050
| +693% | +$111K |
|
|
CZOO
6193
CALL
DELISTED
Cazoo Group Ltd
CZOO
| $97K | ﹤0.01% |
18
-9
| -33% | -$68.6K |
|
6194
Adient
ADNT
$1.65B
| $96K | ﹤0.01% |
+2,367
| New | +$102K |
|
6195
Federal Agricultural Mortgage
AGM
$2.47B
| $96K | ﹤0.01% |
894
-118
| -12% | -$14.4K |
|
|
AHRT
6196
PUT
AH Realty Trust
AHRT
$529M
| $96K | ﹤0.01% |
6,600
-800
| -11% | -$11.5K |
|
6197
PUT
CPS Technologies
CPSH
$75.5M
| $96K | ﹤0.01% |
18,600
+10,100
| +119% | +$34.6K |
|
6198
PUT
Cue Biopharma
CUE
$113M
| $96K | ﹤0.01% |
660
+623
| +1,684% | +$132K |
|
6199
FormFactor
FORM
$8.28B
| $96K | ﹤0.01% |
2,297
-513
| -18% | -$21.4K |
|
|
NOAH
6200
PUT
Noah Holdings
NOAH
$580M
| $96K | ﹤0.01% |
4,100
+3,000
| +273% | +$84.4K |
|
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.