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 | Technology | 0.49% |
| 2 | Healthcare | 0.33% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.16% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2401
PUT
Gossamer Bio
GOSS
$66.5M
| $602K | ﹤0.01% |
594
+559
| +1,597% | +$7.3K |
|
2402
PUT
Kinross Gold
KGC
$28.5B
| $602K | ﹤0.01% |
1,514
+693
| +84% | +$3.35K |
|
2403
PUT
PagSeguro Digital
PAGS
$2.57B
| $599K | ﹤0.01% |
310
-143
| -32% | -$4.34K |
|
2404
PUT
Innoviva
INVA
$1.58B
| $598K | ﹤0.01% |
509
+467
| +1,112% | +$6.18K |
|
|
RP
2405
CALL
DELISTED
RealPage, Inc.
RP
| $598K | ﹤0.01% |
113
-514
| -82% | -$29.3K |
|
|
CODX
2406
CALL
Co-Diagnostics
CODX
$7.74M
| $597K | ﹤0.01% |
+26
| New | +$4.51K |
|
2407
PUT
Macerich
MAC
$7.32B
| $596K | ﹤0.01% |
1,059
+898
| +558% | +$17.9K |
|
2408
CALL
Semtech
SMTC
$11.7B
| $596K | ﹤0.01% |
159
+5
| +3% | +$226 |
|
2409
LendingTree
TREE
$544M
| $596K | ﹤0.01% |
3,251
+2,447
| +304% | +$692K |
|
|
ITCI
2410
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $596K | ﹤0.01% |
38,825
+1,268
| +3% | +$27.5K |
|
2411
PUT
Assured Guaranty
AGO
$3.78B
| $595K | ﹤0.01% |
231
-886
| -79% | -$36.7K |
|
|
CIM
2412
PUT
Chimera Investment
CIM
$1.05B
| $595K | ﹤0.01% |
218
+154
| +241% | +$8.74K |
|
2413
PUT
Campbell Soup
CPB
$6.51B
| $595K | ﹤0.01% |
129
-1,423
| -92% | -$68.4K |
|
2414
PUT
Corteva
CTVA
$59.7B
| $594K | ﹤0.01% |
253
+179
| +242% | +$4.92K |
|
2415
CALL
Vulcan Materials
VMC
$36.3B
| $594K | ﹤0.01% |
55
-152
| -73% | -$19.4K |
|
2416
PUT
Webster Financial
WBS
$12.3B
| $593K | ﹤0.01% |
259
+250
| +2,778% | +$10.2K |
|
2417
CALL
Crown Holdings
CCK
$12.8B
| $592K | ﹤0.01% |
102
-214
| -68% | -$14.9K |
|
2418
Scorpio Tankers
STNG
$3.96B
| $592K | ﹤0.01% |
30,992
+26,482
| +587% | +$629K |
|
2419
ProShares Ultra QQQ
QLD
$12.5B
| $591K | ﹤0.01% |
52,848
-86,032
| -62% | -$1.29M |
|
|
PBFX
2420
CALL
DELISTED
PBF LOGISTICS LP
PBFX
| $591K | ﹤0.01% |
875
+562
| +180% | +$9.39K |
|
2421
Copa Holdings
CPA
$5.56B
| $590K | ﹤0.01% |
+13,044
| New | +$1.12M |
|
2422
CALL
Vail Resorts
MTN
$5.19B
| $590K | ﹤0.01% |
40
-15
| -27% | -$3.23K |
|
2423
PUT
Texas Roadhouse
TXRH
$12.7B
| $590K | ﹤0.01% |
143
-626
| -81% | -$34.6K |
|
|
EBIX
2424
DELISTED
Ebix Inc
EBIX
| $590K | ﹤0.01% |
38,872
+31,491
| +427% | +$898K |
|
2425
PUT
Rithm Capital
RITM
$5.09B
| $588K | ﹤0.01% |
1,175
+834
| +245% | +$12.1K |
|
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 1,512 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 Technology at 0.49% of assets, down from 0.75% a quarter earlier, followed by Healthcare 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 1,512 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.