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 | |
|---|---|---|---|---|---|---|
201
PUT
Blackrock
BLK
$161B
| $61.1M | 0.07% |
100,400
+26,100
| +35% | +$17M |
|
202
PUT
Uber
UBER
$146B
| $61.1M | 0.07% |
2,987,600
-100,400
| -3% | -$2.67M |
|
203
CALL
Airbnb
ABNB
$85.5B
| $61M | 0.06% |
685,300
-2,700
| -0.4% | -$351K |
|
204
PUT
American Express
AXP
$239B
| $60.8M | 0.06% |
438,600
+27,400
| +7% | +$4.53M |
|
205
PUT
Deere & Co
DE
$158B
| $60.6M | 0.06% |
202,500
+2,500
| +1% | +$920K |
|
206
CALL
Pinterest
PINS
$12.8B
| $60.6M | 0.06% |
3,337,700
+1,746,100
| +110% | +$36.5M |
|
207
PUT
Xtrackers MSCI Emerging Markets Hedged Equity ETF
DBEM
$109M
| $60.3M | 0.06% |
1,764,700
+900,800
| +104% | +$20.9M |
|
208
PUT
United Parcel Service
UPS
$98.9B
| $60.3M | 0.06% |
330,300
-53,600
| -14% | -$9.78M |
|
|
209
Alphabet (Google) Class C
GOOG
$4.22T
| $59.4M | 0.06% |
+543,540
| New | +$64.2M |
|
210
CALL
ServiceNow
NOW
$105B
| $59M | 0.06% |
620,000
+277,500
| +81% | +$26.5M |
|
211
CALL
JD.com
JD
$41.1B
| $59M | 0.06% |
918,000
-536,900
| -37% | -$31M |
|
212
CALL
Marvell Technology
MRVL
$187B
| $58.1M | 0.06% |
1,335,700
+340,500
| +34% | +$19.3M |
|
213
CALL
Enphase Energy
ENPH
$5.26B
| $57.8M | 0.06% |
296,000
+55,400
| +23% | +$10M |
|
214
PUT
Moderna
MRNA
$23.7B
| $57.3M | 0.06% |
401,100
-154,500
| -28% | -$22.1M |
|
215
PUT
T-Mobile US
TMUS
$206B
| $57.2M | 0.06% |
424,900
+53,100
| +14% | +$6.93M |
|
216
CALL
Palo Alto Networks
PANW
$279B
| $57M | 0.06% |
691,800
-249,000
| -26% | -$22.1M |
|
217
CALL
Diamondback Energy
FANG
$56.2B
| $55.7M | 0.06% |
459,400
+210,900
| +85% | +$28.9M |
|
218
CALL
Expedia Group
EXPE
$31.8B
| $55.6M | 0.06% |
586,200
+332,500
| +131% | +$47.1M |
|
219
CALL
Bristol-Myers Squibb
BMY
$124B
| $55.6M | 0.06% |
721,700
-599,600
| -45% | -$45.7M |
|
220
CALL
VanEck Durable High Dividend ETF
DURA
$38.1M
| $54.7M | 0.06% |
245,900
+22,200
| +10% | +$700K |
|
221
PUT
Comcast
CMCSA
$85.1B
| $54.7M | 0.06% |
1,393,200
+392,400
| +39% | +$16.8M |
|
222
PUT
Delta Air Lines
DAL
$55.7B
| $54.2M | 0.06% |
1,871,200
+145,400
| +8% | +$5.54M |
|
223
CALL
Baidu
BIDU
$36.8B
| $53.5M | 0.06% |
359,500
-98,000
| -21% | -$13M |
|
|
224
PUT
Enphase Energy
ENPH
$5.26B
| $53.5M | 0.06% |
273,800
+7,500
| +3% | +$1.36M |
|
|
225
PUT
iShares Silver Trust
SLV
$28.4B
| $53.2M | 0.06% |
2,854,500
-2,551,100
| -47% | -$53.2M |
|
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.