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
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3376
PUT
Vanguard FTSE Developed Markets ETF
VEA
$224B
| $526K | ﹤0.01% |
12,900
+3,400
| +36% | +$151K |
|
3377
PUT
Wabtec
WAB
$50.7B
| $525K | ﹤0.01% |
6,400
+900
| +16% | +$80.2K |
|
3378
CALL
FTI Consulting
FCN
$5.19B
| $524K | ﹤0.01% |
2,900
+2,800
| +2,800% | +$462K |
|
|
SRG
3379
PUT
Seritage Growth Properties
SRG
$139M
| $524K | ﹤0.01% |
100,600
-36,900
| -27% | -$329K |
|
3380
CALL
Beam Therapeutics
BEAM
$2.68B
| $522K | ﹤0.01% |
13,500
-20,700
| -61% | -$823K |
|
3381
PUT
Penumbra
PEN
$12.6B
| $522K | ﹤0.01% |
4,200
+2,600
| +163% | +$413K |
|
3382
Cenovus Energy
CVE
$54.1B
| $521K | ﹤0.01% |
27,423
-86,019
| -76% | -$1.71M |
|
|
AXON
3383
Axon Enterprise
AXON
$44.8B
| $520K | ﹤0.01% |
5,587
+4,693
| +525% | +$496K |
|
3384
Colliers International
CIGI
$5.33B
| $520K | ﹤0.01% |
4,743
+1,738
| +58% | +$199K |
|
|
LFLY
3385
CALL
DELISTED
Leafly Holdings, Inc. Common Stock
LFLY
| $520K | ﹤0.01% |
5,780
+3,860
| +201% | +$666K |
|
|
SEE
3386
CALL
DELISTED
Sealed Air
SEE
| $519K | ﹤0.01% |
9,000
-5,100
| -36% | -$322K |
|
|
AVYA
3387
CALL
DELISTED
Avaya Holdings Corp. Common Stock
AVYA
| $519K | ﹤0.01% |
232,000
+110,800
| +91% | +$791K |
|
|
MNRL
3388
CALL
DELISTED
Brigham Minerals, Inc. Class A Common Stock
MNRL
| $519K | ﹤0.01% |
21,100
+2,400
| +13% | +$66.2K |
|
|
WBT
3389
PUT
DELISTED
Welbilt, Inc.
WBT
| $519K | ﹤0.01% |
21,800
+14,500
| +199% | +$343K |
|
3390
CALL
eHealth
EHTH
$43.5M
| $518K | ﹤0.01% |
55,600
+49,500
| +811% | +$503K |
|
3391
PUT
Teradata
TDC
$2.9B
| $518K | ﹤0.01% |
14,000
-34,400
| -71% | -$1.37M |
|
3392
PUT
Cogent Biosciences
COGT
$6.88B
| $517K | ﹤0.01% |
+57,400
| New | +$392K |
|
3393
FuelCell Energy
FCEL
$1.64B
| $517K | ﹤0.01% |
4,602
-3,808
| -45% | -$480K |
|
3394
Williams-Sonoma
WSM
$27.4B
| $517K | ﹤0.01% |
+9,334
| New | +$604K |
|
|
IGMS
3395
DELISTED
IGM Biosciences
IGMS
| $516K | ﹤0.01% |
+28,642
| New | +$511K |
|
|
SIX
3396
PUT
DELISTED
Six Flags Entertainment Corp.
SIX
| $516K | ﹤0.01% |
23,800
-24,800
| -51% | -$790K |
|
3397
Graco
GGG
$13.2B
| $515K | ﹤0.01% |
+8,673
| New | +$545K |
|
3398
PUT
Kosmos Energy
KOS
$1.45B
| $515K | ﹤0.01% |
83,200
-100
| -0.1% | -$721 |
|
3399
CALL
Atkore
ATKR
$2.53B
| $514K | ﹤0.01% |
6,200
-400
| -6% | -$39.7K |
|
|
RBOT
3400
CALL
DELISTED
Vicarious Surgical
RBOT
| $513K | ﹤0.01% |
5,823
+1,910
| +49% | +$233K |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.