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 |
LNKD
LinkedIn Corporation
LNKD
|
+$21.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$17.3M |
| 3 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$15M |
| 4 |
Biogen
BIIB
|
+$14.9M |
| 5 |
Visa
V
|
+$14.1M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$36.7M |
| 2 |
Alphabet (Google) Class C
GOOG
|
+$20.1M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
Citigroup
C
|
+$14.7M |
| 5 |
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
|
+$13.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 6.61% |
| 2 | Healthcare | 6.55% |
| 3 | Technology | 6.45% |
| 4 | Consumer Discretionary | 4.54% |
| 5 | Financials | 4.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
ALXN
376
PUT
DELISTED
Alexion Pharmaceuticals
ALXN
| $748K | 0.05% |
645
+522
| +424% | +$74.1K |
|
377
PUT
Morgan Stanley
MS
$343B
| $743K | 0.05% |
3,873
+1,314
| +51% | +$34.4K |
|
378
PUT
Kinder Morgan
KMI
$72.3B
| $741K | 0.05% |
4,944
-295
| -6% | -$5.26K |
|
379
Freeport-McMoran
FCX
$93.4B
| $740K | 0.05% |
66,437
+56,896
| +596% | +$630K |
|
380
iShares TIPS Bond ETF
TIP
$14.5B
| $740K | 0.05% |
6,343
+6,295
| +13,115% | +$723K |
|
381
ProShares Trust UltraShort MSCI EAFE
EFU
$1.22M
| $739K | 0.05% |
9,202
+8,780
| +2,081% | +$718K |
|
|
HAPN
382
Happen Inc
HAPN
$2.17B
| $739K | 0.05% |
+34,380
| New | +$991K |
|
383
Synchrony
SYF
$24.5B
| $739K | 0.05% |
29,251
+24,958
| +581% | +$726K |
|
384
Vanguard FTSE Europe ETF
VGK
$30.2B
| $738K | 0.05% |
+15,824
| New | +$769K |
|
|
IOC
385
CALL
DELISTED
Interoil Corporation
IOC
| $738K | 0.05% |
436
+375
| +615% | +$13.8K |
|
386
PUT
Viatris
VTRS
$19.8B
| $735K | 0.05% |
1,400
-478
| -25% | -$21.1K |
|
|
KANG
387
DELISTED
iKang Healthcare Group, Inc.
KANG
| $732K | 0.05% |
39,935
+12,025
| +43% | +$242K |
|
388
Liberty Global Class C
LBTYK
$3.44B
| $718K | 0.05% |
25,064
-3,392
| -12% | -$107K |
|
|
CLR
389
CALL
DELISTED
CONTINENTAL RESOURCES INC.
CLR
| $718K | 0.05% |
667
+86
| +15% | +$3.38K |
|
390
PUT
Macy's
M
$6.4B
| $713K | 0.05% |
2,692
+1,170
| +77% | +$41.9K |
|
391
Middleby
MIDD
$5.92B
| $710K | 0.05% |
6,168
+4,305
| +231% | +$494K |
|
|
CBI
392
DELISTED
Chicago Bridge & Iron Nv
CBI
| $709K | 0.05% |
20,482
-4,050
| -17% | -$149K |
|
|
PXD
393
PUT
DELISTED
Pioneer Natural Resource Co.
PXD
| $707K | 0.05% |
600
+103
| +21% | +$16.2K |
|
394
CALL
Delta Air Lines
DAL
$54.9B
| $705K | 0.05% |
5,635
+3,313
| +143% | +$141K |
|
|
395
CALL
Macy's
M
$6.4B
| $704K | 0.05% |
3,400
+2,613
| +332% | +$93.6K |
|
396
PUT
Synaptics
SYNA
$4.71B
| $703K | 0.05% |
437
+291
| +199% | +$20K |
|
|
CSOD
397
DELISTED
Cornerstone OnDemand, Inc.
CSOD
| $698K | 0.05% |
18,348
+18,261
| +20,990% | +$680K |
|
|
POT
398
PUT
DELISTED
Potash Corp Of Saskatchewan
POT
| $695K | 0.05% |
2,497
+1,866
| +296% | +$31.2K |
|
|
HCR
399
DELISTED
Hi-Crush Inc. Common Stock
HCR
| $694K | 0.05% |
+53,104
| New | +$433K |
|
400
Check Point Software Technologies
CHKP
$13.3B
| $691K | 0.05% |
8,678
-275
| -3% | -$23K |
|
Similar funds
Simplex Trading's Q2 2016 Portfolio in Review
As of Q2 2016, Simplex Trading held 7,153 positions worth $1.5B, up 19% from $1.25B the previous quarter. Its ten largest holdings account for 19% of the portfolio.
Simplex Trading deployed $178M of net new capital in Q2 2016, opening 1,586 new positions and adding to 2,321 existing holdings. Its largest new stake was Biogen: 56,467 shares worth $13.7M.
By sector, the portfolio is most concentrated in Communication Services at 6.6% of assets, down from 6.9% a quarter earlier, followed by Healthcare and Technology.
On the sell side, the largest reduction was Broadcom, an estimated $36.7M trimmed.
- Simplex Trading's largest Q2 2016 buy was Biogen: 56,467 shares worth $13.7M.
- Simplex Trading added most to LinkedIn Corporation in Q2 2016, an estimated $21.4M increase.
- Simplex Trading's biggest Q2 2016 reduction was Broadcom, cutting an estimated $36.7M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q2 2016, selling an estimated $20.1M.
- Simplex Trading's ten largest holdings make up 19% of its $1.5B portfolio in Q2 2016.
- Simplex Trading opened 1,586 new positions and closed 1,363 in Q2 2016.
- Simplex Trading's portfolio value rose 19% quarter-over-quarter to $1.5B.
Based on Simplex Trading's 13F filing for Q2 2016, filed 18 Jul 2016.