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 |
Microsoft
MSFT
|
+$114M |
| 2 |
NVIDIA
NVDA
|
+$85.9M |
| 3 |
Citigroup
C
|
+$61.5M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.5M |
| 5 |
Pfizer
PFE
|
+$41.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$467M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$71.2M |
| 3 |
Meta Platforms (Facebook)
META
|
+$47.6M |
| 4 |
Intel
INTC
|
+$41.9M |
| 5 |
TSMC
TSM
|
+$35.9M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.51% |
| 2 | Financials | 0.35% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Healthcare | 0.25% |
| 5 | Industrials | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
201
PUT
FedEx
FDX
$75.2B
| $60.9M | 0.07% |
410,400
-170,100
| -29% | -$35.9M |
|
202
PUT
NextEra Energy
NEE
$183B
| $60.8M | 0.07% |
775,900
-104,100
| -12% | -$8.83M |
|
203
PUT
Coinbase
COIN
$46.3B
| $60.2M | 0.07% |
932,800
-1,142,700
| -55% | -$79.8M |
|
204
iShares 20+ Year Treasury Bond ETF
TLT
$42.3B
| $60.1M | 0.07% |
586,307
-26,539
| -4% | -$2.99M |
|
205
PUT
Biogen
BIIB
$30B
| $59.6M | 0.07% |
223,400
+85,400
| +62% | +$18.1M |
|
206
CALL
AbbVie
ABBV
$452B
| $59.4M | 0.07% |
442,600
-279,100
| -39% | -$40.1M |
|
207
PUT
SLB Ltd
SLB
$69.7B
| $59.1M | 0.07% |
1,647,500
+576,500
| +54% | +$20.9M |
|
208
PUT
Blackstone
BX
$152B
| $58.9M | 0.07% |
704,300
-134,600
| -16% | -$13M |
|
209
PUT
Moderna
MRNA
$23.7B
| $58.9M | 0.07% |
497,900
+96,800
| +24% | +$14.7M |
|
210
CALL
Rivian
RIVN
$25.7B
| $58.7M | 0.07% |
1,782,500
+836,700
| +88% | +$28.5M |
|
211
CALL
Cigna
CI
$76.8B
| $58.5M | 0.07% |
211,000
+130,100
| +161% | +$36.6M |
|
212
PUT
DraftKings
DKNG
$11.8B
| $57.8M | 0.07% |
3,818,400
+1,923,600
| +102% | +$30.6M |
|
|
213
Citigroup
C
$223B
| $57.7M | 0.07% |
1,384,414
+1,244,162
| +887% | +$61.5M |
|
214
CALL
Take-Two Interactive
TTWO
$43.8B
| $56.9M | 0.06% |
521,900
-82,700
| -14% | -$10.3M |
|
215
CALL
Intuit
INTU
$79.3B
| $56.5M | 0.06% |
145,800
+30,100
| +26% | +$13M |
|
216
PUT
Ulta Beauty
ULTA
$21B
| $56.4M | 0.06% |
140,600
+30,700
| +28% | +$12.4M |
|
217
PUT
Las Vegas Sands
LVS
$30.1B
| $56.4M | 0.06% |
1,503,100
+295,800
| +25% | +$11M |
|
218
JPMorgan Chase
JPM
$918B
| $56.2M | 0.06% |
538,019
-62,980
| -10% | -$7.23M |
|
219
CALL
Newmont
NEM
$98.7B
| $56.1M | 0.06% |
1,341,200
+610,700
| +84% | +$28.5M |
|
|
220
CALL
SLB Ltd
SLB
$69.7B
| $55.9M | 0.06% |
1,556,800
+215,300
| +16% | +$7.81M |
|
221
CALL
Medtronic
MDT
$107B
| $55.9M | 0.06% |
691,700
+381,800
| +123% | +$34.3M |
|
222
CALL
Deere & Co
DE
$158B
| $55.8M | 0.06% |
167,100
-69,300
| -29% | -$23.7M |
|
223
CALL
Intuitive Surgical
ISRG
$124B
| $55.2M | 0.06% |
294,600
+86,000
| +41% | +$18.5M |
|
224
CALL
Abbott
ABT
$174B
| $55.1M | 0.06% |
569,500
+316,000
| +125% | +$33.7M |
|
225
PUT
CrowdStrike
CRWD
$195B
| $55M | 0.06% |
1,334,000
-397,200
| -23% | -$18.2M |
|
Similar funds
Simplex Trading's Q3 2022 Portfolio in Review
As of Q3 2022, Simplex Trading held 11,570 positions worth $88.5B, down 6% from $94.1B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
Simplex Trading's Q3 2022 filing shows 1,564 new, 4,281 increased, 3,851 reduced and 1,575 closed positions. Its largest new stake was Microsoft: 432,062 shares worth $101M. The largest sale was Apple, an estimated $467M.
By sector, the portfolio is most concentrated in Technology at 0.51% of assets, down from 0.84% a quarter earlier, followed by Financials and Consumer Discretionary.
- Simplex Trading's largest Q3 2022 buy was Microsoft: 432,062 shares worth $101M.
- Simplex Trading added most to NVIDIA in Q3 2022, an estimated $85.9M increase.
- Simplex Trading's biggest Q3 2022 reduction was Apple, cutting an estimated $467M.
- Simplex Trading fully exited iShares Core S&P 500 ETF in Q3 2022, selling an estimated $34.3M.
- Simplex Trading's ten largest holdings make up 38% of its $88.5B portfolio in Q3 2022.
- Simplex Trading opened 1,564 new positions and closed 1,575 in Q3 2022.
- Simplex Trading's portfolio value fell 6% quarter-over-quarter to $88.5B.
Based on Simplex Trading's 13F filing for Q3 2022, filed 4 Nov 2022.