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 |
Apple
AAPL
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.72% |
| 2 | Technology | 0.67% |
| 3 | Consumer Discretionary | 0.38% |
| 4 | Industrials | 0.24% |
| 5 | Healthcare | 0.22% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
301
PUT
Comcast
CMCSA
$94B
| $46.9M | 0.04% |
1,000,800
-329,700
| -25% | -$15.9M |
|
302
PUT
Accenture
ACN
$114B
| $46.5M | 0.04% |
138,000
-45,900
| -25% | -$15.5M |
|
303
CALL
Blackstone
BX
$102B
| $46.3M | 0.04% |
364,800
+58,300
| +19% | +$7.11M |
|
304
PUT
AutoZone
AZO
$48.7B
| $46.2M | 0.04% |
22,600
-109,700
| -83% | -$214M |
|
305
PUT
SLB Ltd
SLB
$85.3B
| $46.1M | 0.04% |
1,114,800
+750,900
| +206% | +$29.4M |
|
|
306
iShares Silver Trust
SLV
$32.2B
| $45.9M | 0.04% |
2,006,517
+1,875,832
| +1,435% | +$41.7M |
|
307
CALL
Biogen
BIIB
$32.6B
| $45.7M | 0.04% |
216,900
+500
| +0.2% | +$109K |
|
308
CALL
Robinhood
HOOD
$110B
| $45.4M | 0.04% |
3,363,100
+1,315,900
| +64% | +$17.6M |
|
309
PUT
iShares Core MSCI Emerging Markets ETF
IEMG
$165B
| $45.4M | 0.04% |
864,200
+160,600
| +23% | +$9.28M |
|
310
CALL
Intuitive Surgical
ISRG
$130B
| $45.1M | 0.04% |
149,500
-4,300
| -3% | -$1.26M |
|
311
PUT
Chewy
CHWY
$9.69B
| $45M | 0.04% |
1,103,800
+618,600
| +127% | +$28.1M |
|
312
PUT
ConocoPhillips
COP
$161B
| $44.9M | 0.04% |
448,700
+126,100
| +39% | +$11.6M |
|
313
CALL
Zillow
Z
$7.78B
| $44.6M | 0.04% |
906,400
-50,500
| -5% | -$2.72M |
|
314
CALL
Simon Property Group
SPG
$67.8B
| $44.1M | 0.04% |
335,500
+191,700
| +133% | +$27.3M |
|
315
PUT
Norwegian Cruise Line
NCLH
$7.15B
| $44.1M | 0.04% |
2,013,600
+111,000
| +6% | +$2.27M |
|
|
B
316
CALL
Barrick Mining
B
$73.7B
| $43.8M | 0.04% |
1,784,500
+818,000
| +85% | +$17.6M |
|
317
CALL
Lucid Motors
LCID
$1.84B
| $43.7M | 0.04% |
172,030
-770
| -0.4% | -$229K |
|
318
PUT
Affirm
AFRM
$24.4B
| $43.7M | 0.04% |
943,500
+258,100
| +38% | +$13.5M |
|
319
PUT
Devon Energy
DVN
$52.9B
| $43.5M | 0.04% |
735,900
-169,700
| -19% | -$9.19M |
|
|
SCHW
320
PUT
Charles Schwab
SCHW
$189B
| $43.2M | 0.04% |
512,300
-16,600
| -3% | -$1.46M |
|
321
PUT
Datadog
DDOG
$76.5B
| $43M | 0.04% |
283,600
-11,800
| -4% | -$1.73M |
|
|
SPLK
322
PUT
DELISTED
Splunk Inc
SPLK
| $42.9M | 0.04% |
288,500
+102,300
| +55% | +$12.5M |
|
|
323
PUT
Blackstone
BX
$102B
| $42.8M | 0.04% |
337,500
+142,000
| +73% | +$17.3M |
|
324
CALL
Royal Caribbean
RCL
$70.9B
| $42.4M | 0.04% |
505,500
+169,500
| +50% | +$13.3M |
|
325
PUT
Etsy
ETSY
$7.02B
| $42.3M | 0.04% |
340,500
+117,800
| +53% | +$17.5M |
|
Similar funds
Simplex Trading's Q1 2022 Portfolio in Review
As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.
Simplex Trading's Q1 2022 filing shows 1,600 new, 4,440 increased, 4,085 reduced and 1,638 closed positions. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M. The largest sale was State Street Financial Select Sector SPDR ETF, an estimated $42.8M.
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 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
- Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
- Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
- Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
- Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
- Simplex Trading opened 1,600 new positions and closed 1,638 in Q1 2022.
- Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.
Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.