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 | |
|---|---|---|---|---|---|---|
|
ZEN
626
CALL
DELISTED
ZENDESK INC
ZEN
| $14.6M | 0.02% |
191,600
-300,800
| -61% | -$22.8M |
|
|
SHNY
627
PUT
DELISTED
Direxion Daily Silver Miners Index Bull 2X Shares
SHNY
| $14.5M | 0.02% |
501,700
+352,300
| +236% | +$10.2M |
|
628
CALL
Halliburton
HAL
$27.3B
| $14.5M | 0.02% |
615,400
-3,500
| -0.6% | -$100K |
|
629
CALL
C.H. Robinson
CHRW
$24.2B
| $14.5M | 0.02% |
169,700
+5,500
| +3% | +$591K |
|
630
CALL
XPeng
XPEV
$12.2B
| $14.5M | 0.02% |
1,209,800
+799,100
| +195% | +$17.2M |
|
631
CALL
Lennar Class A
LEN
$19.8B
| $14.4M | 0.02% |
199,059
-10,640
| -5% | -$826K |
|
632
CALL
CVR Partners
UAN
$1.31B
| $14.3M | 0.02% |
125,400
-4,900
| -4% | -$559K |
|
633
CALL
Affirm
AFRM
$23.8B
| $14.3M | 0.02% |
764,800
-217,700
| -22% | -$5.69M |
|
634
CALL
Simon Property Group
SPG
$73B
| $14.3M | 0.02% |
158,800
-109,500
| -41% | -$11.2M |
|
635
PUT
Automatic Data Processing
ADP
$97.1B
| $14.2M | 0.02% |
63,000
-50,400
| -44% | -$11.9M |
|
636
PUT
New Oriental
EDU
$7.85B
| $14.2M | 0.02% |
594,100
-62,200
| -9% | -$1.55M |
|
637
PUT
British American Tobacco
BTI
$129B
| $14.2M | 0.02% |
401,100
+137,700
| +52% | +$5.52M |
|
|
638
TSMC
TSM
$2.16T
| $14.2M | 0.02% |
207,189
-434,771
| -68% | -$35.9M |
|
639
PUT
Suncor Energy
SU
$78.4B
| $14.2M | 0.02% |
504,400
-32,700
| -6% | -$1.03M |
|
640
Wells Fargo
WFC
$261B
| $14.2M | 0.02% |
352,841
-37,373
| -10% | -$1.61M |
|
641
CALL
Nutrien
NTR
$32.9B
| $14.2M | 0.02% |
169,800
-142,900
| -46% | -$12.3M |
|
642
PUT
Becton Dickinson
BDX
$42.1B
| $14.1M | 0.02% |
85,600
+58,900
| +221% | +$14.7M |
|
643
PUT
Lumen
LUMN
$6.73B
| $14.1M | 0.02% |
1,937,800
+584,400
| +43% | +$5.95M |
|
644
Chevron
CVX
$387B
| $14.1M | 0.02% |
98,045
-54,177
| -36% | -$8.26M |
|
645
CALL
Western Digital
WDC
$192B
| $14.1M | 0.02% |
572,330
-713,626
| -55% | -$23.7M |
|
646
CALL
Elevance Health
ELV
$82.3B
| $14M | 0.02% |
30,900
+5,000
| +19% | +$2.39M |
|
647
CALL
Avantor
AVTR
$7.75B
| $14M | 0.02% |
715,600
+600,200
| +520% | +$16.1M |
|
648
CALL
Restaurant Brands International
QSR
$25.1B
| $14M | 0.02% |
263,100
-65,000
| -20% | -$3.67M |
|
649
CALL
DraftKings
DKNG
$11.3B
| $13.9M | 0.02% |
1,400,200
-115,700
| -8% | -$1.84M |
|
650
American Airlines Group
AAL
$8.97B
| $13.9M | 0.02% |
1,154,032
+905,234
| +364% | +$12.6M |
|
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.