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 | |
|---|---|---|---|---|---|---|
5526
PUT
Harmony Gold Mining
HMY
$9.84B
| $66K | ﹤0.01% |
19,700
-1,100
| -5% | -$3.47K |
|
5527
PUT
Harmony Biosciences
HRMY
$2.04B
| $66K | ﹤0.01% |
1,200
+1,100
| +1,100% | +$60.5K |
|
|
HUYA
5528
PUT
Huya Inc
HUYA
$563M
| $66K | ﹤0.01% |
16,800
-29,900
| -64% | -$75.7K |
|
5529
Jackson Financial
JXN
$8.53B
| $66K | ﹤0.01% |
+1,917
| New | +$66.6K |
|
5530
Mayville Engineering Co
MEC
$654M
| $66K | ﹤0.01% |
+5,259
| New | +$52.5K |
|
5531
Perion Network
PERI
$375M
| $66K | ﹤0.01% |
2,635
+1,584
| +151% | +$38.6K |
|
5532
Revvity
RVTY
$12.6B
| $66K | ﹤0.01% |
472
-1,340
| -74% | -$180K |
|
5533
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.2B
| $66K | ﹤0.01% |
894
-202,908
| -100% | -$14.8M |
|
|
LOGC
5534
PUT
DELISTED
ContextLogic
LOGC
| $66K | ﹤0.01% |
4,540
-4,737
| -51% | -$97.4K |
|
|
CAMP
5535
CALL
DELISTED
CalAmp Corp.
CAMP
| $66K | ﹤0.01% |
648
+344
| +113% | +$29.1K |
|
|
BKI
5536
DELISTED
Black Knight, Inc. Common Stock
BKI
| $66K | ﹤0.01% |
1,070
-121
| -10% | -$7.35K |
|
|
ALBO
5537
DELISTED
Albireo Pharma Inc
ALBO
| $66K | ﹤0.01% |
3,087
-2,778
| -47% | -$58.7K |
|
|
UMPQ
5538
PUT
DELISTED
Umpqua Holdings Corp
UMPQ
| $66K | ﹤0.01% |
3,700
-600
| -14% | -$11.3K |
|
|
VIVO
5539
PUT
DELISTED
Meridian Bioscience Inc
VIVO
| $66K | ﹤0.01% |
2,000
+1,000
| +100% | +$32.2K |
|
5540
PUT
AMC Global Media
AMCX
$492M
| $65K | ﹤0.01% |
4,200
-3,900
| -48% | -$77.1K |
|
5541
PUT
Compass
COMP
$8.51B
| $65K | ﹤0.01% |
27,900
+27,300
| +4,550% | +$71.6K |
|
5542
Consumer Portfolio Services
CPSS
$202M
| $65K | ﹤0.01% |
+7,365
| New | +$52.8K |
|
5543
CorMedix
CRMD
$591M
| $65K | ﹤0.01% |
15,498
-4,057
| -21% | -$14.4K |
|
5544
CALL
Helix Energy Solutions
HLX
$1.4B
| $65K | ﹤0.01% |
8,900
-14,100
| -61% | -$84.7K |
|
5545
CALL
Independence Realty Trust
IRT
$3.92B
| $65K | ﹤0.01% |
3,900
-28,400
| -88% | -$480K |
|
5546
Jack Henry & Associates
JKHY
$10.9B
| $65K | ﹤0.01% |
+371
| New | +$68.5K |
|
5547
CALL
Liberty Global Class C
LBTYK
$3.53B
| $65K | ﹤0.01% |
3,400
-10,800
| -76% | -$204K |
|
5548
Lightwave Logic
LWLG
$995M
| $65K | ﹤0.01% |
15,217
-815
| -5% | -$5.79K |
|
5549
Summit Therapeutics
SMMT
$10.4B
| $65K | ﹤0.01% |
+15,529
| New | +$28.2K |
|
|
CHRA
5550
CALL
DELISTED
Charah Solutions, Inc Common Stock
CHRA
| $65K | ﹤0.01% |
12,200
+10,450
| +597% | +$124K |
|
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.