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 |
CELG
Celgene Corp
CELG
|
+$31.6M |
| 2 |
Citigroup
C
|
+$19.5M |
| 3 |
AGN
Allergan plc
AGN
|
+$18.4M |
| 4 |
Baidu
BIDU
|
+$18M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$14.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$81.3M |
| 2 |
NVIDIA
NVDA
|
+$60.2M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$48.2M |
| 4 |
Apple
AAPL
|
+$48.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$31.2M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 11.27% |
| 2 | Technology | 10.64% |
| 3 | Healthcare | 7.06% |
| 4 | Communication Services | 6.92% |
| 5 | Industrials | 5.66% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
501
PUT
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$46B
| $776K | 0.03% |
7,144
+2,570
| +56% | +$609K |
|
502
iShares MSCI Emerging Markets Min Vol Factor ETF
EEMV
$3.49B
| $775K | 0.03% |
12,766
-4,763
| -27% | -$283K |
|
503
Terex
TEX
$7.66B
| $773K | 0.03% |
+16,044
| New | +$739K |
|
504
Omega Healthcare
OHI
$15.1B
| $772K | 0.03% |
+28,047
| New | +$810K |
|
|
PPLC
505
CALL
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $772K | 0.03% |
4,083
-190
| -4% | -$6.63K |
|
506
J.M. Smucker
SJM
$12.6B
| $769K | 0.03% |
+6,191
| New | +$688K |
|
507
CALL
RTX Corp
RTX
$262B
| $762K | 0.03% |
1,934
-664
| -26% | -$50.4K |
|
508
CALL
Abbott
ABT
$175B
| $761K | 0.03% |
1,203
-1,079
| -47% | -$59.8K |
|
509
Alnylam Pharmaceuticals
ALNY
$35.6B
| $758K | 0.03% |
5,971
-6,423
| -52% | -$807K |
|
510
CALL
ConocoPhillips
COP
$145B
| $757K | 0.03% |
2,591
-1,090
| -30% | -$56.1K |
|
511
Hormel Foods
HRL
$13.9B
| $755K | 0.03% |
20,766
-75
| -0.4% | -$2.52K |
|
512
CALL
NRG Energy
NRG
$29.5B
| $755K | 0.03% |
1,506
+250
| +20% | +$6.8K |
|
513
PUT
iShares Morningstar Value ETF
ILCV
$1.3B
| $753K | 0.03% |
14,118
+5,600
| +66% | +$287K |
|
|
XEC
514
DELISTED
CIMAREX ENERGY CO
XEC
| $753K | 0.03% |
+6,176
| New | +$720K |
|
515
Bank of Montreal
BMO
$125B
| $752K | 0.03% |
9,404
+8,732
| +1,299% | +$681K |
|
516
Honda
HMC
$37B
| $749K | 0.03% |
+21,998
| New | +$711K |
|
|
MTOR
517
DELISTED
MERITOR, Inc.
MTOR
| $749K | 0.03% |
+31,927
| New | +$802K |
|
|
BPL
518
DELISTED
Buckeye Partners, L.P.
BPL
| $747K | 0.03% |
15,076
+8,731
| +138% | +$443K |
|
519
Lands' End
LE
$370M
| $746K | 0.03% |
38,195
+1,526
| +4% | +$21.1K |
|
|
JUNO
520
DELISTED
Juno Therapeutics, Inc.
JUNO
| $744K | 0.03% |
+16,285
| New | +$812K |
|
521
PUT
Expedia Group
EXPE
$31.3B
| $743K | 0.03% |
1,388
+582
| +72% | +$75.5K |
|
522
Check Point Software Technologies
CHKP
$13.3B
| $741K | 0.03% |
+7,155
| New | +$777K |
|
|
WES
523
DELISTED
Western Gas Partners Lp
WES
| $740K | 0.03% |
15,402
+7,439
| +93% | +$354K |
|
|
PRTY
524
DELISTED
Party City Holdco Inc.
PRTY
| $739K | 0.03% |
53,035
+50,549
| +2,033% | +$622K |
|
525
PUT
Bath & Body Works
BBWI
$4.04B
| $738K | 0.03% |
1,974
-1,002
| -34% | -$40.5K |
|
Similar funds
Simplex Trading's Q4 2017 Portfolio in Review
As of Q4 2017, Simplex Trading held 7,407 positions worth $2.32B, down 5.1% from $2.45B the previous quarter. Its ten largest holdings account for 17% of the portfolio.
Simplex Trading withdrew a net $315M in Q4 2017, closing 1,460 positions and reducing 2,239 holdings. Its most notable exit was iShares 20+ Year Treasury Bond ETF, an estimated $21.1M position sold in full.
By sector, the portfolio is most concentrated in Consumer Discretionary at 11% of assets, down from 14% a quarter earlier, followed by Technology and Healthcare.
Against the trend, Simplex Trading opened a new position in Celgene Corp worth $29.2M.
- Simplex Trading's largest Q4 2017 buy was Celgene Corp: 280,194 shares worth $29.2M.
- Simplex Trading added most to Baidu in Q4 2017, an estimated $18M increase.
- Simplex Trading's biggest Q4 2017 reduction was Amazon, cutting an estimated $81.3M.
- Simplex Trading fully exited iShares 20+ Year Treasury Bond ETF in Q4 2017, selling an estimated $21.1M.
- Simplex Trading's ten largest holdings make up 17% of its $2.32B portfolio in Q4 2017.
- Simplex Trading opened 1,548 new positions and closed 1,460 in Q4 2017.
- Simplex Trading's portfolio value fell 5.1% quarter-over-quarter to $2.32B.
Based on Simplex Trading's 13F filing for Q4 2017, filed 10 Jan 2018.