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 | |
|---|---|---|---|---|---|---|
|
PTRA
2901
CALL
DELISTED
Proterra Inc. Common Stock
PTRA
| $782K | ﹤0.01% |
168,700
+108,300
| +179% | +$662K |
|
2902
CALL
Americold
COLD
$4.17B
| $781K | ﹤0.01% |
26,000
-33,300
| -56% | -$926K |
|
2903
PUT
Hormel Foods
HRL
$14.1B
| $781K | ﹤0.01% |
16,500
+10,400
| +170% | +$519K |
|
2904
PUT
Clearfield
CLFD
$425M
| $780K | ﹤0.01% |
12,600
+3,000
| +31% | +$176K |
|
2905
PUT
Check Point Software Technologies
CHKP
$14.1B
| $779K | ﹤0.01% |
6,400
-14,400
| -69% | -$1.85M |
|
|
NTR
2906
PUT
DELISTED
NEW YORK MORTGAGE TRUST INC
NTR
| $778K | ﹤0.01% |
282,200
-185,900
| -40% | -$513K |
|
2907
Amplify Energy
AMPY
$152M
| $777K | ﹤0.01% |
+118,868
| New | +$877K |
|
2908
PUT
Terex
TEX
$7.84B
| $777K | ﹤0.01% |
28,400
+15,300
| +117% | +$509K |
|
|
INFN
2909
CALL
DELISTED
Infinera Corporation Common Stock
INFN
| $777K | ﹤0.01% |
145,100
+51,400
| +55% | +$329K |
|
2910
CALL
A.O. Smith
AOS
$8.82B
| $776K | ﹤0.01% |
14,200
+4,900
| +53% | +$294K |
|
2911
PUT
STAG Industrial
STAG
$7.79B
| $775K | ﹤0.01% |
25,100
-5,600
| -18% | -$199K |
|
2912
PUT
Acacia Research
ACTG
$447M
| $773K | ﹤0.01% |
153,400
+3,100
| +2% | +$14.2K |
|
2913
United States 12 Month Oil Fund,
USL
$43.5M
| $773K | ﹤0.01% |
19,544
-504
| -3% | -$20.3K |
|
2914
Bath & Body Works
BBWI
$4.13B
| $772K | ﹤0.01% |
+28,680
| New | +$1.24M |
|
2915
Shift4
FOUR
$4.35B
| $772K | ﹤0.01% |
23,370
+4,730
| +25% | +$223K |
|
2916
CALL
NOV
NOV
$7.11B
| $772K | ﹤0.01% |
45,700
-186,400
| -80% | -$3.51M |
|
2917
PUT
East-West Bancorp
EWBC
$18B
| $771K | ﹤0.01% |
11,900
-10,800
| -48% | -$775K |
|
2918
CALL
Outdoor Holding Co
POWW
$256M
| $771K | ﹤0.01% |
200,500
-18,300
| -8% | -$76K |
|
2919
PUT
TG Therapeutics
TGTX
$8.4B
| $771K | ﹤0.01% |
181,500
+53,800
| +42% | +$336K |
|
|
TRUE
2920
PUT
DELISTED
TrueCar
TRUE
| $771K | ﹤0.01% |
298,000
-292,600
| -50% | -$970K |
|
|
FRGI
2921
PUT
DELISTED
Fiesta Restaurant Group, Inc.
FRGI
| $771K | ﹤0.01% |
108,100
-49,600
| -31% | -$351K |
|
2922
Biogen
BIIB
$30.4B
| $769K | ﹤0.01% |
3,774
-5,576
| -60% | -$1.14M |
|
2923
PUT
NNN REIT
NNN
$9.37B
| $769K | ﹤0.01% |
17,900
+10,200
| +132% | +$449K |
|
2924
Hecla Mining
HL
$9.76B
| $768K | ﹤0.01% |
196,006
-2,455
| -1% | -$12.8K |
|
|
DAY
2925
DELISTED
Dayforce
DAY
| $768K | ﹤0.01% |
16,316
-26,851
| -62% | -$1.49M |
|
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.