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
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
276
CALL
Newmont
NEM
$101B
| $43.2M | 0.05% |
730,500
-100,300
| -12% | -$7.1M |
|
277
PUT
Regeneron Pharmaceuticals
REGN
$68.2B
| $42.9M | 0.05% |
72,600
+50,300
| +226% | +$32.7M |
|
278
CALL
ConocoPhillips
COP
$148B
| $42.6M | 0.05% |
474,700
+66,800
| +16% | +$6.88M |
|
279
PUT
The Mosaic Company
MOS
$7.05B
| $42.5M | 0.05% |
899,600
+276,600
| +44% | +$16.9M |
|
280
PUT
Altria Group
MO
$120B
| $42.4M | 0.05% |
1,016,200
+539,100
| +113% | +$27.9M |
|
281
PUT
Ulta Beauty
ULTA
$20.5B
| $42.4M | 0.05% |
109,900
+59,300
| +117% | +$23.6M |
|
282
CALL
ProShares UltraShort Health Care
RXD
$3.29M
| $42.2M | 0.04% |
895,650
-220,450
| -20% | -$5.98M |
|
283
PUT
Roblox
RBLX
$34B
| $42.2M | 0.04% |
1,283,400
-111,600
| -8% | -$3.75M |
|
284
CALL
AMC Entertainment Holdings
AMC
$1.97B
| $42M | 0.04% |
310,260
-192,340
| -38% | -$28M |
|
285
CALL
Intuitive Surgical
ISRG
$119B
| $41.9M | 0.04% |
208,600
+59,100
| +40% | +$13.9M |
|
286
CALL
Sea Limited
SE
$61.2B
| $41.8M | 0.04% |
625,200
+203,200
| +48% | +$17.3M |
|
287
CALL
ProShares Ultra Bloomberg Natural Gas
BOIL
$421M
| $41.4M | 0.04% |
10,441
+750
| +8% | +$13.6M |
|
288
CALL
Blackstone
BX
$151B
| $41.2M | 0.04% |
451,100
+86,300
| +24% | +$9.32M |
|
289
CALL
Marathon Petroleum
MPC
$91.7B
| $41.1M | 0.04% |
499,600
-123,400
| -20% | -$11.5M |
|
290
PUT
Datadog
DDOG
$87B
| $40.8M | 0.04% |
428,600
+145,000
| +51% | +$15.9M |
|
291
CALL
3M
MMM
$87.5B
| $40.7M | 0.04% |
376,022
+133,114
| +55% | +$16.1M |
|
292
CALL
Texas Instruments
TXN
$256B
| $40.7M | 0.04% |
264,700
-185,800
| -41% | -$31.3M |
|
293
PUT
Las Vegas Sands
LVS
$30.5B
| $40.6M | 0.04% |
1,207,300
-121,200
| -9% | -$4.19M |
|
294
CALL
Coinbase
COIN
$42.8B
| $40.3M | 0.04% |
856,100
+229,600
| +37% | +$21.9M |
|
295
CALL
Accenture
ACN
$84.8B
| $40.1M | 0.04% |
144,300
+58,400
| +68% | +$17.5M |
|
296
PUT
Dow Inc
DOW
$22.5B
| $39.8M | 0.04% |
770,300
+125,500
| +19% | +$8.04M |
|
297
PUT
Warner Bros
WBD
$65.1B
| $39.7M | 0.04% |
+2,959,800
| New | +$54.9M |
|
298
CALL
American Airlines Group
AAL
$9.05B
| $39.7M | 0.04% |
3,130,800
-3,900
| -0.1% | -$64.9K |
|
299
PUT
Dollar General
DG
$25.4B
| $39.7M | 0.04% |
161,700
-16,900
| -9% | -$3.94M |
|
300
PUT
Tyson Foods
TSN
$19.9B
| $39.6M | 0.04% |
459,600
+200,700
| +78% | +$18M |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.