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 | |
|---|---|---|---|---|---|---|
3676
Kosmos Energy
KOS
$1.47B
| $415K | ﹤0.01% |
67,100
+16,052
| +31% | +$116K |
|
3677
CALL
Medifast
MED
$107M
| $415K | ﹤0.01% |
2,300
+700
| +44% | +$125K |
|
|
MMAT
3678
CALL
DELISTED
Meta Materials Inc. Common Stock
MMAT
| $415K | ﹤0.01% |
4,033
+1,375
| +52% | +$205K |
|
|
TCRR
3679
PUT
DELISTED
TCR2 Therapeutics Inc. Common Stock
TCRR
| $415K | ﹤0.01% |
143,200
+140,600
| +5,408% | +$347K |
|
|
CHNG
3680
CALL
DELISTED
Change Healthcare Inc. Common Stock
CHNG
| $415K | ﹤0.01% |
18,000
-1,600
| -8% | -$37.4K |
|
|
STOR
3681
PUT
DELISTED
STORE Capital Corporation
STOR
| $414K | ﹤0.01% |
15,900
-8,300
| -34% | -$230K |
|
3682
PUT
Broadridge
BR
$18.4B
| $413K | ﹤0.01% |
+2,900
| New | +$421K |
|
3683
CALL
Huntington Ingalls Industries
HII
$11B
| $413K | ﹤0.01% |
1,900
-1,600
| -46% | -$338K |
|
3684
PUT
Meritage Homes
MTH
$4.78B
| $413K | ﹤0.01% |
11,400
+9,000
| +375% | +$359K |
|
3685
Huron Consulting
HURN
$2.76B
| $412K | ﹤0.01% |
6,348
+4,670
| +278% | +$264K |
|
|
MZTI
3686
CALL
The Marzetti Company
MZTI
$3.05B
| $412K | ﹤0.01% |
+3,200
| New | +$438K |
|
3687
CALL
LivaNova
LIVN
$4.47B
| $412K | ﹤0.01% |
6,600
+6,300
| +2,100% | +$446K |
|
3688
CALL
monday.com
MNDY
$3.82B
| $412K | ﹤0.01% |
4,000
+1,600
| +67% | +$194K |
|
3689
CALL
Offerpad Solutions
OPAD
$18.5M
| $412K | ﹤0.01% |
1,263
-608
| -32% | -$408K |
|
3690
Direxion Daily Technology Bull 3x ETF
TECL
$4.39B
| $412K | ﹤0.01% |
14,706
-63,521
| -81% | -$2.53M |
|
|
TGH
3691
DELISTED
Textainer Group Holdings limited
TGH
| $412K | ﹤0.01% |
15,049
-47,905
| -76% | -$1.55M |
|
3692
CALL
Green Dot
GDOT
$750M
| $411K | ﹤0.01% |
16,400
-4,400
| -21% | -$119K |
|
3693
CALL
Ameresco
AMRC
$980M
| $410K | ﹤0.01% |
9,000
-1,200
| -12% | -$66.7K |
|
3694
Angi Inc
ANGI
$247M
| $410K | ﹤0.01% |
8,953
+5,244
| +141% | +$257K |
|
3695
CALL
Penumbra
PEN
$12.6B
| $410K | ﹤0.01% |
3,300
+600
| +22% | +$95.2K |
|
|
SCS
3696
CALL
DELISTED
Steelcase
SCS
| $410K | ﹤0.01% |
38,300
+22,200
| +138% | +$257K |
|
3697
PUT
Warby Parker
WRBY
$3.19B
| $410K | ﹤0.01% |
36,500
-70,200
| -66% | -$1.41M |
|
|
EXK
3698
CALL
Endeavour Silver
EXK
$2.24B
| $409K | ﹤0.01% |
130,500
-87,600
| -40% | -$346K |
|
3699
CALL
Bank OZK
OZK
$5.63B
| $409K | ﹤0.01% |
10,900
+6,500
| +148% | +$256K |
|
3700
STAG Industrial
STAG
$7.44B
| $408K | ﹤0.01% |
13,216
+9,220
| +231% | +$327K |
|
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.