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 | |
|---|---|---|---|---|---|---|
251
CALL
NextEra Energy
NEE
$186B
| $54.6M | 0.06% |
652,700
-335,300
| -34% | -$27.1M |
|
252
PUT
American Express
AXP
$238B
| $54.2M | 0.06% |
366,600
-38,000
| -9% | -$5.63M |
|
253
CALL
Novartis
NVS
$292B
| $53.8M | 0.06% |
592,800
+155,700
| +36% | +$13.1M |
|
254
PUT
Albemarle
ALB
$13.9B
| $53.5M | 0.06% |
246,900
+85,900
| +53% | +$22.9M |
|
255
CALL
ServiceNow
NOW
$98.4B
| $53.3M | 0.06% |
687,000
-18,000
| -3% | -$1.41M |
|
256
CALL
VanEck Durable High Dividend ETF
DURA
$38.5M
| $53.3M | 0.06% |
202,600
-16,200
| -7% | -$499K |
|
257
CALL
Accenture
ACN
$85.7B
| $52.9M | 0.06% |
198,400
-42,100
| -18% | -$11.6M |
|
258
CALL
FedEx
FDX
$76.6B
| $52.9M | 0.06% |
305,500
-119,000
| -28% | -$19.8M |
|
259
CALL
Danaher
DHR
$127B
| $52.7M | 0.06% |
224,021
+121,147
| +118% | +$28.1M |
|
260
PUT
CVS Health
CVS
$138B
| $52.7M | 0.06% |
565,200
+118,800
| +27% | +$11.5M |
|
261
PUT
Abbott
ABT
$175B
| $52.4M | 0.06% |
477,100
-84,000
| -15% | -$8.7M |
|
262
CALL
lululemon athletica
LULU
$12.9B
| $52.1M | 0.06% |
162,500
+48,800
| +43% | +$16M |
|
263
CALL
Newmont
NEM
$102B
| $51.8M | 0.06% |
1,098,200
-243,000
| -18% | -$10.8M |
|
|
SCHW
264
PUT
Charles Schwab
SCHW
$175B
| $51.8M | 0.06% |
622,200
+219,400
| +54% | +$17M |
|
265
PUT
Cigna
CI
$75.4B
| $51.5M | 0.06% |
155,500
-200
| -0.1% | -$63.3K |
|
|
SPLK
266
CALL
DELISTED
Splunk Inc
SPLK
| $51.1M | 0.06% |
593,800
+189,000
| +47% | +$15.3M |
|
267
CALL
United Airlines
UAL
$38.1B
| $50.8M | 0.06% |
1,346,800
-67,600
| -5% | -$2.74M |
|
268
PUT
ConocoPhillips
COP
$145B
| $50.7M | 0.06% |
429,700
-64,800
| -13% | -$7.88M |
|
269
PUT
Biogen
BIIB
$29.2B
| $50.3M | 0.05% |
181,700
-41,700
| -19% | -$11.8M |
|
|
DOCU
270
CALL
DocuSign
DOCU
$9.14B
| $49.9M | 0.05% |
901,200
+307,600
| +52% | +$15M |
|
271
PUT
Dick's Sporting Goods
DKS
$18.8B
| $49.9M | 0.05% |
437,400
+126,600
| +41% | +$14.3M |
|
272
CALL
Zoom
ZM
$25.2B
| $49.9M | 0.05% |
736,200
+178,000
| +32% | +$13.5M |
|
273
PUT
Take-Two Interactive
TTWO
$43.4B
| $49.7M | 0.05% |
477,300
+13,500
| +3% | +$1.46M |
|
274
CALL
Royal Caribbean
RCL
$76.7B
| $49.4M | 0.05% |
999,000
+260,300
| +35% | +$13.6M |
|
275
CALL
Gilead Sciences
GILD
$162B
| $49.3M | 0.05% |
574,700
-87,400
| -13% | -$6.92M |
|
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.