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 |
Broadcom
AVGO
|
+$33.7M |
| 2 |
SPDR Gold Trust
GLD
|
+$17.8M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$14.3M |
| 4 |
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
|
+$11.9M |
| 5 |
Citigroup
C
|
+$8.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$34.2M |
| 2 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 3 |
Chipotle Mexican Grill
CMG
|
+$14.7M |
| 4 |
Walt Disney
DIS
|
+$13.3M |
| 5 |
Booking.com
BKNG
|
+$12.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 7.64% |
| 2 | Communication Services | 6.85% |
| 3 | Consumer Discretionary | 4.92% |
| 4 | Healthcare | 4.57% |
| 5 | Financials | 4.22% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1401
CALL
KB Home
KBH
$3.48B
| $95K | 0.01% |
427
+363
| +567% | +$4.24K |
|
1402
PUT
ArcelorMittal
MT
$50.6B
| $95K | 0.01% |
186
+102
| +121% | +$985 |
|
1403
CALL
Neurocrine Biosciences
NBIX
$17.7B
| $95K | 0.01% |
224
+36
| +19% | +$1.43K |
|
|
EGRX
1404
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
| $95K | 0.01% |
2,351
-3,386
| -59% | -$215K |
|
|
SWC
1405
CALL
DELISTED
Stillwater Mining Co
SWC
| $95K | 0.01% |
550
+395
| +255% | +$3.16K |
|
1406
PUT
Bank of Montreal
BMO
$125B
| $94K | 0.01% |
122
+37
| +44% | +$2.03K |
|
1407
CALL
Inovio Pharmaceuticals
INO
$80.8M
| $94K | 0.01% |
38
+14
| +58% | +$1.08K |
|
1408
PUT
Lumen
LUMN
$6.68B
| $94K | 0.01% |
855
+420
| +97% | +$11.8K |
|
1409
PUT
Altria Group
MO
$121B
| $94K | 0.01% |
1,261
-267
| -17% | -$16.1K |
|
1410
MSCI
MSCI
$40.4B
| $94K | 0.01% |
1,270
+254
| +25% | +$17.6K |
|
1411
SBA Communications
SBAC
$18.7B
| $94K | 0.01% |
+944
| New | +$90.2K |
|
1412
CALL
J.M. Smucker
SJM
$12.5B
| $94K | 0.01% |
197
+45
| +30% | +$5.67K |
|
1413
CALL
Tapestry
TPR
$28.7B
| $94K | 0.01% |
357
+155
| +77% | +$5.61K |
|
1414
PUT
Targa Resources
TRGP
$60.8B
| $94K | 0.01% |
399
+240
| +151% | +$5.72K |
|
|
ALXN
1415
PUT
DELISTED
Alexion Pharmaceuticals
ALXN
| $94K | 0.01% |
123
-139
| -53% | -$20.4K |
|
|
AKRX
1416
PUT
DELISTED
Akorn Inc
AKRX
| $94K | 0.01% |
284
+129
| +83% | +$3.39K |
|
1417
CALL
Agilent Technologies
A
$39.1B
| $93K | 0.01% |
674
+299
| +80% | +$11.4K |
|
1418
PUT
HF Sinclair
DINO
$16.1B
| $93K | 0.01% |
259
+111
| +75% | +$3.83K |
|
1419
CALL
Franco-Nevada
FNV
$41.3B
| $93K | 0.01% |
240
+47
| +24% | +$2.52K |
|
1420
CALL
The Greenbrier Companies
GBX
$1.61B
| $93K | 0.01% |
711
+639
| +888% | +$16.4K |
|
1421
PUT
General Dynamics
GD
$104B
| $93K | 0.01% |
180
+31
| +21% | +$4.11K |
|
1422
J&J Snack Foods
JJSF
$1.43B
| $93K | 0.01% |
+864
| New | +$93.3K |
|
1423
Direxion Daily S&P Biotech Bear 3X ETF
LABD
$64M
| $93K | 0.01% |
+1
| New | +$128K |
|
|
P
1424
PUT
Everpure Inc
P
$24.9B
| $93K | 0.01% |
240
+229
| +2,082% | +$3.04K |
|
1425
PUT
Synchrony
SYF
$23.7B
| $93K | 0.01% |
409
-1,376
| -77% | -$38.2K |
|
Similar funds
Simplex Trading's Q1 2016 Portfolio in Review
As of Q1 2016, Simplex Trading held 7,084 positions worth $1.25B, down 1.8% from $1.28B the previous quarter. Its ten largest holdings account for 17% of the portfolio.
Simplex Trading's Q1 2016 filing shows 1,678 new, 2,214 increased, 1,528 reduced and 1,505 closed positions. Its largest new stake was Broadcom: 2,493,400 shares worth $38.5M. The largest sale was Apple, an estimated $34.2M.
By sector, the portfolio is most concentrated in Technology at 7.6% of assets, up from 7% a quarter earlier, followed by Communication Services and Consumer Discretionary.
- Simplex Trading's largest Q1 2016 buy was Broadcom: 2,493,400 shares worth $38.5M.
- Simplex Trading added most to Citigroup in Q1 2016, an estimated $8.7M increase.
- Simplex Trading's biggest Q1 2016 reduction was Booking.com, cutting an estimated $12.1M.
- Simplex Trading fully exited Apple in Q1 2016, selling an estimated $34.2M.
- Simplex Trading's ten largest holdings make up 17% of its $1.25B portfolio in Q1 2016.
- Simplex Trading opened 1,678 new positions and closed 1,505 in Q1 2016.
- Simplex Trading's portfolio value fell 1.8% quarter-over-quarter to $1.25B.
Based on Simplex Trading's 13F filing for Q1 2016, filed 14 Apr 2016.