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 | |
|---|---|---|---|---|---|---|
2276
CALL
Appian
APPN
$1.74B
| $1.7M | ﹤0.01% |
28,000
-15,200
| -35% | -$862K |
|
2277
C3.ai
AI
$1.27B
| $1.7M | ﹤0.01% |
74,897
-80,593
| -52% | -$1.94M |
|
2278
PUT
JFrog
FROG
$9.71B
| $1.7M | ﹤0.01% |
63,100
+55,100
| +689% | +$1.39M |
|
|
ARNC
2279
PUT
DELISTED
Arconic Corporation
ARNC
| $1.7M | ﹤0.01% |
66,200
+12,500
| +23% | +$372K |
|
2280
CALL
ReNew
RNW
$2.24B
| $1.69M | ﹤0.01% |
206,200
+140,500
| +214% | +$1.02M |
|
|
LKFT
2281
CALL
Lakefront Biotherapeutics American Depositary Shares
LKFT
$1.82B
| $1.69M | ﹤0.01% |
27,300
+8,200
| +43% | +$502K |
|
2282
ACM Research
ACMR
$5.83B
| $1.69M | ﹤0.01% |
81,641
+77,576
| +1,908% | +$1.95M |
|
2283
CALL
Nice
NICE
$5.29B
| $1.69M | ﹤0.01% |
7,700
+7,000
| +1,000% | +$1.7M |
|
2284
PUT
UDR
UDR
$12.9B
| $1.69M | ﹤0.01% |
29,400
+10,500
| +56% | +$596K |
|
|
KRTX
2285
CALL
DELISTED
Karuna Therapeutics, Inc. Common Stock
KRTX
| $1.69M | ﹤0.01% |
13,300
+12,100
| +1,008% | +$1.36M |
|
|
FOCS
2286
PUT
DELISTED
Focus Financial Partners Inc. Class A
FOCS
| $1.68M | ﹤0.01% |
36,800
-14,400
| -28% | -$723K |
|
2287
CALL
Ametek
AME
$55.5B
| $1.68M | ﹤0.01% |
12,600
+10,200
| +425% | +$1.37M |
|
|
WCN
2288
PUT
Waste Connections
WCN
$42.8B
| $1.68M | ﹤0.01% |
12,000
+11,300
| +1,614% | +$1.45M |
|
2289
Hilton Worldwide
HLT
$74B
| $1.67M | ﹤0.01% |
11,029
-12,534
| -53% | -$1.85M |
|
2290
PUT
PagSeguro Digital
PAGS
$2.57B
| $1.67M | ﹤0.01% |
83,300
-166,400
| -67% | -$3.1M |
|
|
CRHC
2291
CALL
DELISTED
Cohn Robbins Holdings Corp.
CRHC
| $1.67M | ﹤0.01% |
168,100
-12,100
| -7% | -$120K |
|
|
BPT
2292
PUT
DELISTED
BP Prudhoe Bay Royalty Trust
BPT
| $1.67M | ﹤0.01% |
111,500
+86,400
| +344% | +$829K |
|
2293
PUT
Royal Gold
RGLD
$17.1B
| $1.67M | ﹤0.01% |
11,800
+1,500
| +15% | +$175K |
|
|
AAWW
2294
PUT
DELISTED
Atlas Air Worldwide Holdings, Inc.
AAWW
| $1.67M | ﹤0.01% |
19,300
-33,400
| -63% | -$2.74M |
|
2295
CALL
Arch Capital
ACGL
$36.1B
| $1.67M | ﹤0.01% |
34,400
+23,600
| +219% | +$1.1M |
|
2296
Sempra
SRE
$60.8B
| $1.66M | ﹤0.01% |
+19,760
| New | +$1.42M |
|
2297
State Street Real Estate Select Sector SPDR ETF
XLRE
$8.69B
| $1.65M | ﹤0.01% |
34,250
+27,998
| +448% | +$1.31M |
|
|
MIME
2298
PUT
DELISTED
Mimecast Limited
MIME
| $1.65M | ﹤0.01% |
20,800
+10,900
| +110% | +$867K |
|
2299
CALL
Americold
COLD
$4.09B
| $1.65M | ﹤0.01% |
59,300
-14,300
| -19% | -$402K |
|
|
CYBR
2300
DELISTED
CyberArk
CYBR
| $1.65M | ﹤0.01% |
9,769
-85
| -0.9% | -$12.9K |
|
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.