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 | |
|---|---|---|---|---|---|---|
1676
Camden Property Trust
CPT
$11.3B
| $68K | 0.01% |
+814
| New | +$62.2K |
|
1677
PUT
Eastman Chemical
EMN
$7.8B
| $68K | 0.01% |
220
+116
| +112% | +$7.6K |
|
1678
CALL
Fluor
FLR
$7.29B
| $68K | 0.01% |
123
+69
| +128% | +$3.24K |
|
1679
CALL
McKesson
MCK
$98.5B
| $68K | 0.01% |
175
-124
| -41% | -$20K |
|
1680
PUT
Medtronic
MDT
$107B
| $68K | 0.01% |
622
+135
| +28% | +$10.2K |
|
1681
Mercado Libre
MELI
$91.3B
| $68K | 0.01% |
+582
| New | +$60.3K |
|
1682
CALL
Plains GP Holdings
PAGP
$5.23B
| $68K | 0.01% |
220
+169
| +331% | +$3.47K |
|
|
SPR
1683
CALL
DELISTED
Spirit AeroSystems
SPR
| $68K | 0.01% |
220
+195
| +780% | +$8.88K |
|
1684
CALL
Terex
TEX
$7.98B
| $68K | 0.01% |
764
+187
| +32% | +$3.91K |
|
1685
PUT
TC Energy
TRP
$73.5B
| $68K | 0.01% |
368
+352
| +2,200% | +$12.3K |
|
|
TLP
1686
DELISTED
Transmontaigne
TLP
| $68K | 0.01% |
1,873
+1,459
| +352% | +$46.9K |
|
|
TWX
1687
CALL
DELISTED
Time Warner Inc
TWX
| $68K | 0.01% |
673
-71
| -10% | -$4.89K |
|
|
XXIA
1688
DELISTED
Ixia
XXIA
| $68K | 0.01% |
5,501
+2,090
| +61% | +$22.1K |
|
|
ARMH
1689
CALL
DELISTED
ARM HOLDINGS PLC ADS
ARMH
| $68K | 0.01% |
185
+40
| +28% | +$1.67K |
|
1690
CALL
Century Aluminum
CENX
$4.57B
| $67K | 0.01% |
244
-6
| -2% | -$33 |
|
1691
CALL
Cerus
CERS
$587M
| $67K | 0.01% |
999
+864
| +640% | +$4.79K |
|
1692
CALL
Elevance Health
ELV
$81.9B
| $67K | 0.01% |
106
-142
| -57% | -$19K |
|
1693
PUT
Franco-Nevada
FNV
$41.4B
| $67K | 0.01% |
636
+429
| +207% | +$23K |
|
1694
CALL
Gen Digital
GEN
$15.6B
| $67K | 0.01% |
333
+110
| +49% | +$2.12K |
|
1695
AdvisorShares Ranger Equity Bear ETF
HDGE
$63.2M
| $67K | 0.01% |
635
+513
| +420% | +$59.7K |
|
1696
Insmed
INSM
$23.2B
| $67K | 0.01% |
5,336
-20,307
| -79% | -$267K |
|
1697
Johnson Controls International
JCI
$87.5B
| $67K | 0.01% |
+1,648
| New | +$62.9K |
|
1698
PUT
KB Home
KBH
$3.48B
| $67K | 0.01% |
637
+257
| +68% | +$3K |
|
1699
CALL
Murphy USA
MUSA
$11.3B
| $67K | 0.01% |
245
+145
| +145% | +$8.92K |
|
1700
CALL
Natural Health Trends
NHTC
$15.4M
| $67K | 0.01% |
179
-50
| -22% | -$1.36K |
|
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.