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 | |
|---|---|---|---|---|---|---|
326
CALL
Antero Resources
AR
$10.9B
| $36.1M | 0.04% |
1,179,000
+491,200
| +71% | +$18M |
|
|
DOCU
327
CALL
DocuSign
DOCU
$8.98B
| $36.1M | 0.04% |
629,400
-4,200
| -0.7% | -$340K |
|
328
CALL
CVS Health
CVS
$136B
| $35.9M | 0.04% |
387,700
-500,200
| -56% | -$48.8M |
|
329
PUT
Applied Materials
AMAT
$447B
| $35.9M | 0.04% |
394,200
-200,900
| -34% | -$22M |
|
330
PUT
Etsy
ETSY
$7.68B
| $35.5M | 0.04% |
485,400
+144,900
| +43% | +$13.2M |
|
331
CALL
NextEra Energy
NEE
$187B
| $35.4M | 0.04% |
457,100
-23,700
| -5% | -$1.8M |
|
332
CALL
Palantir
PLTR
$296B
| $35.4M | 0.04% |
3,899,200
-1,188,400
| -23% | -$11.7M |
|
333
PUT
Gilead Sciences
GILD
$162B
| $35.3M | 0.04% |
571,900
-398,600
| -41% | -$24.7M |
|
334
CALL
American Express
AXP
$233B
| $35.3M | 0.04% |
254,600
+45,000
| +21% | +$7.43M |
|
335
PUT
Workday
WDAY
$31.6B
| $35.2M | 0.04% |
251,900
+75,300
| +43% | +$13.7M |
|
336
CALL
CME Group
CME
$91.9B
| $35M | 0.04% |
170,800
+97,400
| +133% | +$20.6M |
|
337
PUT
Nucor
NUE
$54.9B
| $35M | 0.04% |
334,800
-47,500
| -12% | -$6.43M |
|
338
PUT
Baidu
BIDU
$36.5B
| $34.9M | 0.04% |
234,900
-454,600
| -66% | -$60.1M |
|
339
PUT
Electronic Arts
EA
$52.4B
| $34.8M | 0.04% |
286,000
+32,500
| +13% | +$4.14M |
|
340
CALL
Trade Desk
TTD
$7.89B
| $34.5M | 0.04% |
823,900
+308,600
| +60% | +$16.9M |
|
341
iShares Core S&P 500 ETF
IVV
$875B
| $34.3M | 0.04% |
90,501
+65,904
| +268% | +$27.1M |
|
342
PUT
Li Auto
LI
$12.3B
| $34.3M | 0.04% |
895,400
+343,100
| +62% | +$9.17M |
|
|
WBA
343
PUT
DELISTED
Walgreens Boots Alliance
WBA
| $34M | 0.04% |
897,200
+220,500
| +33% | +$9.48M |
|
344
Visa
V
$669B
| $33.8M | 0.04% |
+171,510
| New | +$35.4M |
|
|
345
CALL
Gilead Sciences
GILD
$162B
| $33.7M | 0.04% |
545,300
-472,600
| -46% | -$29.3M |
|
346
CALL
The Mosaic Company
MOS
$7.08B
| $33.7M | 0.04% |
713,300
+165,500
| +30% | +$10.1M |
|
347
PUT
AMC Entertainment Holdings
AMC
$2.04B
| $33.3M | 0.04% |
246,040
-138,390
| -36% | -$20.1M |
|
348
PUT
RTX Corp
RTX
$282B
| $33M | 0.04% |
343,300
+122,900
| +56% | +$11.8M |
|
349
PUT
AT&T
T
$160B
| $32.7M | 0.03% |
2,874,900
-2,178,808
| -43% | -$43.4M |
|
350
PUT
Accenture
ACN
$84.9B
| $32.4M | 0.03% |
116,600
-21,400
| -16% | -$6.43M |
|
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.