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 | |
|---|---|---|---|---|---|---|
2426
CALL
Murphy USA
MUSA
$11.3B
| $1.03M | ﹤0.01% |
3,700
+600
| +19% | +$174K |
|
2427
CALL
Applied Industrial Technologies
AIT
$12.8B
| $1.03M | ﹤0.01% |
8,200
+3,100
| +61% | +$380K |
|
2428
CALL
Celanese
CE
$5.09B
| $1.03M | ﹤0.01% |
10,100
-19,000
| -65% | -$1.88M |
|
|
FORG
2429
CALL
DELISTED
ForgeRock, Inc.
FORG
| $1.03M | ﹤0.01% |
45,200
+43,200
| +2,160% | +$941K |
|
2430
PUT
Ferguson
FERG
$44.7B
| $1.03M | ﹤0.01% |
8,100
-2,400
| -23% | -$279K |
|
2431
CALL
OptimizeRx
OPRX
$117M
| $1.03M | ﹤0.01% |
61,200
+44,100
| +258% | +$763K |
|
2432
CALL
Applovin
APP
$132B
| $1.03M | ﹤0.01% |
97,600
-120,700
| -55% | -$1.77M |
|
|
SAFE
2433
PUT
DELISTED
Safehold Inc.
SAFE
| $1.03M | ﹤0.01% |
35,900
+3,800
| +12% | +$108K |
|
2434
CALL
Ambev
ABEV
$47.3B
| $1.03M | ﹤0.01% |
377,400
+84,300
| +29% | +$246K |
|
2435
FerroAtlántica
GSM
$628M
| $1.02M | ﹤0.01% |
265,764
+125,196
| +89% | +$623K |
|
2436
PUT
Teleflex
TFX
$5.85B
| $1.02M | ﹤0.01% |
4,100
-14,400
| -78% | -$3.18M |
|
2437
PUT
Sprouts Farmers Market
SFM
$7.04B
| $1.02M | ﹤0.01% |
31,600
+16,200
| +105% | +$504K |
|
|
CERE
2438
CALL
DELISTED
Cerevel Therapeutics Holdings, Inc. Common Stock
CERE
| $1.02M | ﹤0.01% |
32,400
-33,300
| -51% | -$940K |
|
|
AIMC
2439
PUT
DELISTED
Altra Industrial Motion Corp
AIMC
| $1.02M | ﹤0.01% |
17,100
+16,500
| +2,750% | +$867K |
|
2440
CALL
MACOM Technology Solutions
MTSI
$20.4B
| $1.02M | ﹤0.01% |
16,200
+14,200
| +710% | +$887K |
|
2441
CALL
Signet Jewelers
SIG
$3.55B
| $1.02M | ﹤0.01% |
15,000
+2,800
| +23% | +$178K |
|
2442
CALL
Atmos Energy
ATO
$29.9B
| $1.02M | ﹤0.01% |
9,100
+8,600
| +1,720% | +$946K |
|
2443
PUT
Hewlett Packard
HPE
$63.2B
| $1.02M | ﹤0.01% |
63,900
-65,200
| -51% | -$961K |
|
|
GOEV
2444
PUT
DELISTED
Canoo Inc. Class A Common Stock
GOEV
| $1.02M | ﹤0.01% |
1,801
+1,637
| +998% | +$1M |
|
2445
AbCellera Biologics
ABCL
$1.62B
| $1.02M | ﹤0.01% |
100,491
+39,705
| +65% | +$459K |
|
2446
CALL
indie Semiconductor
INDI
$733M
| $1.02M | ﹤0.01% |
174,600
-7,400
| -4% | -$54.6K |
|
|
CHGX
2447
PUT
DELISTED
AXS Change Finance ESG ETF
CHGX
| $1.02M | ﹤0.01% |
18,500
-30,400
| -62% | -$823K |
|
|
RADI
2448
CALL
DELISTED
Radius Global Infrastructure, Inc. Class A Common Stock
RADI
| $1.02M | ﹤0.01% |
86,000
+13,500
| +19% | +$140K |
|
2449
Teucrium Corn Fund
CORN
$190M
| $1.01M | ﹤0.01% |
+37,676
| New | +$1.01M |
|
2450
Coupang
CPNG
$27.8B
| $1.01M | ﹤0.01% |
+68,884
| New | +$1.22M |
|
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.