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 | |
|---|---|---|---|---|---|---|
5926
PUT
Limoneira
LMNR
$239M
| $77K | ﹤0.01% |
5,500
| – | – |
|
|
ONL
5927
CALL
Orion Office REIT
ONL
$155M
| $77K | ﹤0.01% |
7,100
+5,500
| +344% | +$71K |
|
5928
PUT
PolyPid
PYPD
$83.6M
| $77K | ﹤0.01% |
553
-77
| -12% | -$11.5K |
|
5929
CALL
Quantum Computing Inc
QUBT
$1.97B
| $77K | ﹤0.01% |
32,600
+21,600
| +196% | +$46.2K |
|
5930
PUT
VOC Energy
VOC
$50.8M
| $77K | ﹤0.01% |
+12,000
| New | +$88.7K |
|
5931
CALL
YPF
YPF
$200B
| $77K | ﹤0.01% |
23,700
-61,800
| -72% | -$267K |
|
|
ALE
5932
CALL
DELISTED
Allete
ALE
| $76K | ﹤0.01% |
1,300
-700
| -35% | -$42.8K |
|
5933
PUT
ARKO Corp
ARKO
$851M
| $76K | ﹤0.01% |
9,400
-6,300
| -40% | -$54.9K |
|
5934
Brunswick
BC
$5.16B
| $76K | ﹤0.01% |
+1,177
| New | +$86.5K |
|
5935
PUT
CAE Inc. Common Shares
CAE
$8.51B
| $76K | ﹤0.01% |
3,100
-22,600
| -88% | -$560K |
|
5936
CALL
Capricor Therapeutics
CAPR
$243M
| $76K | ﹤0.01% |
21,900
-9,600
| -30% | -$34.1K |
|
5937
IDEX
IEX
$17.2B
| $76K | ﹤0.01% |
420
-230
| -35% | -$43.3K |
|
5938
PUT
Orion Energy Systems
OESX
$41.5M
| $76K | ﹤0.01% |
3,830
+680
| +22% | +$16.7K |
|
5939
CALL
Oramed Pharmaceuticals
ORMP
$180M
| $76K | ﹤0.01% |
16,600
-4,800
| -22% | -$25.6K |
|
5940
PUT
PagerDuty
PD
$856M
| $76K | ﹤0.01% |
3,100
-44,800
| -94% | -$1.23M |
|
5941
Precigen
PGEN
$2.36B
| $76K | ﹤0.01% |
56,778
-43,267
| -43% | -$64.2K |
|
5942
Protagonist Therapeutics
PTGX
$8.51B
| $76K | ﹤0.01% |
9,637
+4,665
| +94% | +$56.4K |
|
5943
Schwab US Large-Cap Growth ETF
SCHG
$61.2B
| $76K | ﹤0.01% |
5,256
+5,224
| +16,325% | +$83.5K |
|
|
TEF
5944
PUT
DELISTED
Telefonica
TEF
| $76K | ﹤0.01% |
15,000
+4,368
| +41% | +$21.4K |
|
5945
Procure Space ETF
UFO
$609M
| $76K | ﹤0.01% |
3,835
-1,206
| -24% | -$27.1K |
|
5946
WPP
WPP
$4.39B
| $76K | ﹤0.01% |
+1,512
| New | +$88.7K |
|
5947
CALL
Zedge
ZDGE
$38.9M
| $76K | ﹤0.01% |
26,500
-31,300
| -54% | -$155K |
|
|
LLAP
5948
CALL
DELISTED
Terran Orbital Corporation
LLAP
| $76K | ﹤0.01% |
+16,700
| New | +$84.2K |
|
|
KNBE
5949
DELISTED
KnowBe4, Inc. Class A Common Stock
KNBE
| $76K | ﹤0.01% |
+4,914
| New | +$96.1K |
|
|
IELG
5950
PUT
DELISTED
ISHARES ENHANCED U.S. LARGE CAP ETF
IELG
| $76K | ﹤0.01% |
1,700
+900
| +113% | +$40.2K |
|
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.