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
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2476
CALL
Frontline
FRO
$8.75B
| $808K | ﹤0.01% |
1,244
+388
| +45% | +$2.97K |
|
|
GRUB
2477
DELISTED
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
| $808K | ﹤0.01% |
5,589
+3,745
| +203% | +$540K |
|
2478
Best Buy
BBY
$18B
| $807K | ﹤0.01% |
+7,260
| New | +$742K |
|
2479
PUT
Tencent Music
TME
$14.5B
| $807K | ﹤0.01% |
547
-13
| -2% | -$203 |
|
2480
PUT
Howard Hughes
HHH
$3.93B
| $806K | ﹤0.01% |
147
+13
| +10% | +$694 |
|
|
OPTU
2481
Optimum Communications Inc
OPTU
$316M
| $805K | ﹤0.01% |
30,962
-52,615
| -63% | -$1.37M |
|
2482
PUT
Crocs
CROX
$6.69B
| $803K | ﹤0.01% |
188
+2
| +1% | +$77 |
|
2483
CALL
Factset
FDS
$9.05B
| $803K | ﹤0.01% |
24
-32
| -57% | -$11.1K |
|
2484
CALL
Pool Corp
POOL
$6.7B
| $802K | ﹤0.01% |
24
-82
| -77% | -$25.4K |
|
2485
Ericsson
ERIC
$30.7B
| $801K | ﹤0.01% |
73,607
+28,304
| +62% | +$313K |
|
2486
Masco
MAS
$16B
| $801K | ﹤0.01% |
+14,543
| New | +$814K |
|
2487
CALL
CDW
CDW
$17.1B
| $800K | ﹤0.01% |
67
+53
| +379% | +$6.06K |
|
2488
PUT
Hyliion Holdings
HYLN
$663M
| $798K | ﹤0.01% |
+2,243
| New | +$73.4K |
|
2489
CALL
Deluxe
DLX
$1.19B
| $797K | ﹤0.01% |
310
+160
| +107% | +$4.13K |
|
2490
Invesco S&P 500 Low Volatility ETF
SPLV
$7.2B
| $795K | ﹤0.01% |
14,836
-5,863
| -28% | -$311K |
|
|
SAFE
2491
CALL
DELISTED
Safehold Inc.
SAFE
| $794K | ﹤0.01% |
128
+98
| +327% | +$5.31K |
|
2492
PUT
Roundhill Sports Betting & iGaming ETF
BETZ
$49.7M
| $793K | ﹤0.01% |
370
+354
| +2,213% | +$6.4K |
|
2493
CALL
Floor & Decor
FND
$5.81B
| $792K | ﹤0.01% |
106
-149
| -58% | -$10.2K |
|
2494
CALL
Saic
SAIC
$5.03B
| $792K | ﹤0.01% |
101
-30
| -23% | -$2.36K |
|
2495
CALL
Halozyme
HALO
$9.72B
| $791K | ﹤0.01% |
301
-913
| -75% | -$25.4K |
|
2496
CALL
Post Holdings
POST
$4.12B
| $791K | ﹤0.01% |
141
-741
| -84% | -$42.3K |
|
2497
Radware
RDWR
$1.24B
| $791K | ﹤0.01% |
32,641
-16,370
| -33% | -$414K |
|
2498
CALL
GoPro
GPRO
$116M
| $790K | ﹤0.01% |
1,744
+630
| +57% | +$2.96K |
|
2499
PUT
Eversource Energy
ES
$28.2B
| $785K | ﹤0.01% |
94
+5
| +6% | +$428 |
|
2500
PUT
Graco
GGG
$12.9B
| $785K | ﹤0.01% |
128
+50
| +64% | +$2.79K |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.