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 |
SPDR Gold Trust
GLD
|
+$31.6M |
| 2 |
iShares Silver Trust
SLV
|
+$28.1M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$25.1M |
| 4 |
JPMorgan Chase
JPM
|
+$24.5M |
| 5 |
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
|
+$24M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class C
GOOG
|
+$51.6M |
| 2 |
Amazon
AMZN
|
+$47.4M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$44.7M |
| 4 |
Netflix
NFLX
|
+$38.3M |
| 5 |
NVIDIA
NVDA
|
+$31.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 98.1% |
| 2 | Technology | 0.49% |
| 3 | Consumer Discretionary | 0.33% |
| 4 | Healthcare | 0.33% |
| 5 | Financials | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
301
CALL
Philip Morris
PM
$284B
| $14.8M | 0.03% |
2,024
+243
| +14% | +$20K |
|
302
PUT
Ulta Beauty
ULTA
$24.1B
| $14.6M | 0.03% |
832
-1,222
| -59% | -$305K |
|
303
PUT
Match Group
MTCH
$9.61B
| $14.5M | 0.03% |
2,200
+1,154
| +110% | +$84.8K |
|
304
PUT
Honeywell
HON
$66.4B
| $14.5M | 0.03% |
1,152
-728
| -39% | -$112K |
|
305
CALL
Clorox
CLX
$11.3B
| $14.5M | 0.03% |
838
+545
| +186% | +$90K |
|
306
PUT
S&P Global
SPGI
$131B
| $14.4M | 0.03% |
589
+65
| +12% | +$17.8K |
|
307
PUT
Pinduoduo
PDD
$117B
| $14.2M | 0.03% |
3,944
+145
| +4% | +$5.29K |
|
308
CALL
Becton Dickinson
BDX
$50.3B
| $14.2M | 0.03% |
631
+451
| +251% | +$111K |
|
309
PUT
Veeva Systems
VEEV
$44.5B
| $14.1M | 0.02% |
901
+472
| +110% | +$69.2K |
|
310
PUT
Teladoc Health
TDOC
$1.14B
| $14M | 0.02% |
906
-500
| -36% | -$58.2K |
|
311
AutoZone
AZO
$48.7B
| $14M | 0.02% |
16,553
+16,527
| +63,565% | +$17.2M |
|
312
CALL
Align Technology
ALGN
$11.3B
| $13.9M | 0.02% |
802
+210
| +35% | +$50.3K |
|
313
PUT
Hilton Worldwide
HLT
$70B
| $13.9M | 0.02% |
2,037
+1,854
| +1,013% | +$181K |
|
314
CALL
lululemon athletica
LULU
$11.1B
| $13.9M | 0.02% |
733
-964
| -57% | -$216K |
|
|
WORK
315
CALL
DELISTED
Slack Technologies, Inc.
WORK
| $13.8M | 0.02% |
5,150
+3,380
| +191% | +$81.5K |
|
316
CALL
Deere & Co
DE
$187B
| $13.8M | 0.02% |
1,000
+2
| +0.2% | +$316 |
|
|
LK
317
CALL
DELISTED
Luckin Coffee Inc. American Depositary Shares
LK
| $13.8M | 0.02% |
5,078
+2,168
| +75% | +$79.8K |
|
|
318
PUT
AutoZone
AZO
$48.7B
| $13.8M | 0.02% |
163
-266
| -62% | -$276K |
|
319
PUT
Western Digital
WDC
$169B
| $13.7M | 0.02% |
4,355
-151
| -3% | -$6.69K |
|
320
CALL
Morgan Stanley
MS
$342B
| $13.6M | 0.02% |
3,998
+426
| +12% | +$20.1K |
|
321
CALL
Intuit
INTU
$91B
| $13.5M | 0.02% |
588
+270
| +85% | +$73.1K |
|
322
CALL
CrowdStrike
CRWD
$218B
| $13.5M | 0.02% |
9,680
+804
| +9% | +$11.4K |
|
323
CALL
Tyson Foods
TSN
$18.1B
| $13.4M | 0.02% |
2,315
+1,409
| +156% | +$105K |
|
324
PUT
Peloton Interactive
PTON
$2.37B
| $13.4M | 0.02% |
5,037
+2,729
| +118% | +$75.9K |
|
325
PUT
Lockheed Martin
LMT
$121B
| $13.2M | 0.02% |
390
-333
| -46% | -$131K |
|
Similar funds
Simplex Trading's Q1 2020 Portfolio in Review
As of Q1 2020, Simplex Trading held 8,783 positions worth $56.7B, up 24% from $45.7B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading's Q1 2020 filing shows 1,511 new, 3,249 increased, 2,705 reduced and 1,159 closed positions. Its largest new stake was SPDR Gold Trust: 212,230 shares worth $31.4M. The largest sale was Alphabet (Google) Class C, an estimated $51.6M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, up from 97% a quarter earlier, followed by Technology and Consumer Discretionary.
- Simplex Trading's largest Q1 2020 buy was SPDR Gold Trust: 212,230 shares worth $31.4M.
- Simplex Trading added most to JPMorgan Chase in Q1 2020, an estimated $24.5M increase.
- Simplex Trading's biggest Q1 2020 reduction was Amazon, cutting an estimated $47.4M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q1 2020, selling an estimated $51.6M.
- Simplex Trading's ten largest holdings make up 50% of its $56.7B portfolio in Q1 2020.
- Simplex Trading opened 1,511 new positions and closed 1,159 in Q1 2020.
- Simplex Trading's portfolio value rose 24% quarter-over-quarter to $56.7B.
Based on Simplex Trading's 13F filing for Q1 2020, filed 29 Apr 2020.