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 | |
|---|---|---|---|---|---|---|
|
AZUL
6526
DELISTED
Azul
AZUL
| $48K | ﹤0.01% |
+6,771
| New | +$81.6K |
|
6527
CALL
Banco Bilbao Vizcaya Argentaria
BBVA
$154B
| $48K | ﹤0.01% |
10,700
-2,700
| -20% | -$13.7K |
|
|
BCYC
6528
CALL
Bicycle Therapeutics
BCYC
$269M
| $48K | ﹤0.01% |
2,900
-22,900
| -89% | -$483K |
|
6529
CALL
CuriosityStream
CURI
$145M
| $48K | ﹤0.01% |
28,700
-900
| -3% | -$1.82K |
|
|
DCBO
6530
CALL
Docebo
DCBO
$525M
| $48K | ﹤0.01% |
1,700
+300
| +21% | +$11.4K |
|
6531
DHI Group
DHX
$182M
| $48K | ﹤0.01% |
+9,744
| New | +$57.9K |
|
6532
PUT
DarioHealth
DRIO
$70.9M
| $48K | ﹤0.01% |
395
-450
| -53% | -$52.8K |
|
6533
National Vision
EYE
$1.77B
| $48K | ﹤0.01% |
+1,756
| New | +$57.9K |
|
6534
First Trust Natural Gas ETF
FCG
$647M
| $48K | ﹤0.01% |
2,194
-21,865
| -91% | -$561K |
|
6535
CALL
Fidus Investment
FDUS
$749M
| $48K | ﹤0.01% |
2,800
-18,700
| -87% | -$361K |
|
6536
Corning
GLW
$119B
| $48K | ﹤0.01% |
+1,553
| New | +$53.5K |
|
|
HPP
6537
CALL
Hudson Pacific Properties
HPP
$747M
| $48K | ﹤0.01% |
471
-3,100
| -87% | -$458K |
|
6538
iShares North American Natural Resources ETF
IGE
$741M
| $48K | ﹤0.01% |
+1,360
| New | +$55.2K |
|
6539
CALL
Kennametal
KMT
$2.59B
| $48K | ﹤0.01% |
2,100
-100
| -5% | -$2.63K |
|
|
LOMA
6540
Loma Negra
LOMA
$1.34B
| $48K | ﹤0.01% |
9,545
+8,741
| +1,087% | +$49.9K |
|
6541
PUT
Northern Trust
NTRS
$33.3B
| $48K | ﹤0.01% |
500
+300
| +150% | +$31.7K |
|
6542
Orion Energy Systems
OESX
$41M
| $48K | ﹤0.01% |
2,417
+1,398
| +137% | +$34.4K |
|
6543
PUT
Onto Innovation
ONTO
$12.9B
| $48K | ﹤0.01% |
700
+300
| +75% | +$22.2K |
|
6544
PUT
PDS Biotechnology
PDSB
$38.4M
| $48K | ﹤0.01% |
13,400
+700
| +6% | +$3.33K |
|
6545
CALL
Prelude Therapeutics
PRLD
$366M
| $48K | ﹤0.01% |
9,300
+400
| +4% | +$2.04K |
|
6546
PUT
Prothena Corp
PRTA
$425M
| $48K | ﹤0.01% |
+1,800
| New | +$52.7K |
|
6547
PUT
Ring Energy
REI
$315M
| $48K | ﹤0.01% |
18,300
-20,000
| -52% | -$82.8K |
|
6548
ProShares Short Real Estate
REK
$11.7M
| $48K | ﹤0.01% |
2,505
+1,505
| +151% | +$27.3K |
|
6549
CALL
Recursion Pharmaceuticals
RXRX
$1.59B
| $48K | ﹤0.01% |
6,000
-17,800
| -75% | -$119K |
|
6550
PUT
Sensus Healthcare
SRTS
$47.9M
| $48K | ﹤0.01% |
6,300
-1,100
| -15% | -$9.23K |
|
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.