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 | |
|---|---|---|---|---|---|---|
851
CALL
Lamb Weston
LW
$6.8B
| $9.88M | 0.01% |
110,600
+43,100
| +64% | +$3.67M |
|
852
CALL
Kohl's
KSS
$2.05B
| $9.83M | 0.01% |
389,300
-312,100
| -44% | -$8.85M |
|
853
CALL
Invesco CurrencyShares Japanese Yen Trust
FXY
$423M
| $9.8M | 0.01% |
137,900
+34,100
| +33% | +$2.25M |
|
854
SLB Ltd
SLB
$70.8B
| $9.79M | 0.01% |
183,048
+106,005
| +138% | +$5.28M |
|
855
PUT
ClearShares Piton Intermediate Fixed Income ETF
PIFI
$97.5M
| $9.72M | 0.01% |
568,000
+145,100
| +34% | +$13.1M |
|
856
CALL
Western Union
WU
$2.6B
| $9.69M | 0.01% |
703,600
+534,300
| +316% | +$7.38M |
|
857
CALL
Truist Financial
TFC
$62.4B
| $9.66M | 0.01% |
224,600
| – | – |
|
858
PUT
Fidelity National Information Services
FIS
$20.7B
| $9.65M | 0.01% |
142,200
-7,600
| -5% | -$540K |
|
859
PUT
Harley-Davidson
HOG
$2.81B
| $9.64M | 0.01% |
231,800
+175,400
| +311% | +$7.47M |
|
860
CALL
Fair Isaac
FICO
$27.9B
| $9.64M | 0.01% |
16,100
+7,800
| +94% | +$4.1M |
|
861
CALL
SoFi Technologies
SOFI
$21.3B
| $9.62M | 0.01% |
2,085,700
-472,700
| -18% | -$2.34M |
|
862
PUT
Ralph Lauren
RL
$22.2B
| $9.54M | 0.01% |
90,300
-11,600
| -11% | -$1.16M |
|
863
CALL
HP
HPQ
$22.4B
| $9.51M | 0.01% |
353,800
-94,600
| -21% | -$2.62M |
|
864
PUT
Dell
DELL
$282B
| $9.49M | 0.01% |
237,900
-105,800
| -31% | -$4.18M |
|
865
CALL
AGNC Investment
AGNC
$12.3B
| $9.47M | 0.01% |
914,800
+81,700
| +10% | +$746K |
|
866
PUT
Annaly Capital Management
NLY
$16.8B
| $9.46M | 0.01% |
448,800
-102,500
| -19% | -$2.02M |
|
867
Accenture
ACN
$85.1B
| $9.43M | 0.01% |
+35,353
| New | +$9.78M |
|
868
CALL
Vodafone
VOD
$35.2B
| $9.43M | 0.01% |
931,900
+113,600
| +14% | +$1.28M |
|
869
PUT
Qfin Holdings
QFIN
$1.59B
| $9.42M | 0.01% |
462,900
-12,900
| -3% | -$192K |
|
|
870
Microsoft
MSFT
$2.83T
| $9.4M | 0.01% |
39,221
-392,841
| -91% | -$94.3M |
|
871
PUT
AngloGold Ashanti
AU
$39.6B
| $9.38M | 0.01% |
482,900
+315,700
| +189% | +$5.18M |
|
|
P
872
CALL
Everpure Inc
P
$24.8B
| $9.36M | 0.01% |
349,800
-30,800
| -8% | -$896K |
|
873
CALL
Keysight
KEYS
$55.7B
| $9.36M | 0.01% |
54,700
-14,800
| -21% | -$2.52M |
|
874
PUT
Knight Transportation
KNX
$11.7B
| $9.36M | 0.01% |
178,500
+152,900
| +597% | +$7.91M |
|
875
PUT
Trip.com Group
TCOM
$27B
| $9.34M | 0.01% |
271,600
+104,000
| +62% | +$2.99M |
|
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.