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 |
Amazon
AMZN
|
+$170M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$71.3M |
| 3 |
AT&T
T
|
+$44.2M |
| 4 |
Meta Platforms (Facebook)
META
|
+$37.1M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$34.4M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$94.3M |
| 2 |
JPMorgan Chase
JPM
|
+$68.2M |
| 3 |
Citigroup
C
|
+$62.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$50.9M |
| 5 |
SPDR Gold Trust
GLD
|
+$46.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.38% |
| 2 | Technology | 0.35% |
| 3 | Communication Services | 0.24% |
| 4 | Healthcare | 0.2% |
| 5 | Consumer Staples | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
601
PUT
Academy Sports + Outdoors
ASO
$3.03B
| $18.1M | 0.02% |
344,100
+233,500
| +211% | +$11.1M |
|
602
CALL
American International
AIG
$41.5B
| $18.1M | 0.02% |
285,800
+88,700
| +45% | +$5.16M |
|
603
PUT
Spotify
SPOT
$97.5B
| $18M | 0.02% |
228,300
+80,300
| +54% | +$6.48M |
|
604
PUT
Philip Morris
PM
$303B
| $18M | 0.02% |
177,600
-139,300
| -44% | -$13.1M |
|
605
State Street Utilities Select Sector SPDR ETF
XLU
$23.9B
| $17.8M | 0.02% |
+505,154
| New | +$17.2M |
|
606
CALL
Paychex
PAYX
$39.4B
| $17.8M | 0.02% |
153,800
+58,200
| +61% | +$6.81M |
|
607
CALL
Alcoa
AA
$12.2B
| $17.8M | 0.02% |
390,600
-262,100
| -40% | -$11.4M |
|
608
CALL
Scotiabank
BNS
$107B
| $17.7M | 0.02% |
362,200
-100,200
| -22% | -$4.94M |
|
609
PUT
Invesco CurrencyShares Japanese Yen Trust
FXY
$425M
| $17.6M | 0.02% |
247,900
-100
| -0% | -$6.61K |
|
610
CALL
Aflac
AFL
$62.9B
| $17.6M | 0.02% |
244,500
+97,400
| +66% | +$6.52M |
|
611
CALL
Macy's
M
$6.4B
| $17.6M | 0.02% |
850,800
+418,600
| +97% | +$8.57M |
|
|
COUP
612
PUT
DELISTED
Coupa Software Incorporated
COUP
| $17.5M | 0.02% |
220,600
+158,100
| +253% | +$9.46M |
|
613
CALL
Vanguard FTSE Europe ETF
VGK
$30.2B
| $17.4M | 0.02% |
327,000
-76,600
| -19% | -$4.04M |
|
614
CALL
Crocs
CROX
$6.77B
| $17.3M | 0.02% |
159,800
+72,300
| +83% | +$6.39M |
|
615
PUT
SAP
SAP
$174B
| $17.3M | 0.02% |
167,900
-248,600
| -60% | -$24.9M |
|
616
CALL
Best Buy
BBY
$18.4B
| $17.3M | 0.02% |
215,300
-149,600
| -41% | -$11M |
|
617
CALL
Oneok
OKE
$57.8B
| $17.2M | 0.02% |
262,100
+90,900
| +53% | +$5.59M |
|
618
CALL
Sony
SONY
$123B
| $17.2M | 0.02% |
1,128,000
-189,500
| -14% | -$2.83M |
|
619
CALL
Restaurant Brands International
QSR
$25.4B
| $17.1M | 0.02% |
264,800
+1,700
| +0.6% | +$104K |
|
620
CALL
ON Semiconductor
ON
$35.9B
| $17.1M | 0.02% |
274,500
-168,900
| -38% | -$11.3M |
|
621
CALL
Aon
AON
$75.2B
| $17.1M | 0.02% |
57,000
-20,600
| -27% | -$6.02M |
|
622
PUT
VF Corp
VFC
$6.74B
| $17M | 0.02% |
616,700
+262,500
| +74% | +$7.72M |
|
623
PUT
PNC Financial Services
PNC
$101B
| $17M | 0.02% |
107,500
-40,300
| -27% | -$6.34M |
|
624
PUT
NetEase
NTES
$77.6B
| $16.9M | 0.02% |
233,000
+116,800
| +101% | +$7.95M |
|
625
CALL
Boston Properties
BXP
$10.8B
| $16.9M | 0.02% |
249,400
+140,500
| +129% | +$9.96M |
|
Similar funds
Simplex Trading's Q4 2022 Portfolio in Review
As of Q4 2022, Simplex Trading held 11,206 positions worth $91.9B, up 3.9% from $88.5B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
Simplex Trading's Q4 2022 filing shows 1,219 new, 3,365 increased, 4,370 reduced and 1,942 closed positions. Its largest new stake was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M. The largest sale was Microsoft, an estimated $94.3M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.38% of assets, up from 0.3% a quarter earlier, followed by Technology and Communication Services.
- Simplex Trading's largest Q4 2022 buy was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M.
- Simplex Trading added most to Amazon in Q4 2022, an estimated $170M increase.
- Simplex Trading's biggest Q4 2022 reduction was Microsoft, cutting an estimated $94.3M.
- Simplex Trading fully exited JPMorgan Chase in Q4 2022, selling an estimated $68.2M.
- Simplex Trading's ten largest holdings make up 34% of its $91.9B portfolio in Q4 2022.
- Simplex Trading opened 1,219 new positions and closed 1,942 in Q4 2022.
- Simplex Trading's portfolio value rose 3.9% quarter-over-quarter to $91.9B.
Based on Simplex Trading's 13F filing for Q4 2022, filed 2 Feb 2023.