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 | |
|---|---|---|---|---|---|---|
426
CALL
Strategy Inc
MSTR
$34.2B
| $26.5M | 0.03% |
1,247,000
+165,000
| +15% | +$4.14M |
|
427
CALL
Capital One
COF
$123B
| $26.4M | 0.03% |
286,900
-9,700
| -3% | -$1.03M |
|
428
PUT
Philip Morris
PM
$298B
| $26.3M | 0.03% |
316,900
-132,900
| -30% | -$12.7M |
|
429
CALL
McKesson
MCK
$96.5B
| $26.2M | 0.03% |
77,100
+48,700
| +171% | +$16.9M |
|
430
PUT
Domino's
DPZ
$10.7B
| $25.9M | 0.03% |
83,400
+40,400
| +94% | +$15.3M |
|
431
PUT
Snap
SNAP
$7.42B
| $25.7M | 0.03% |
2,619,300
-238,200
| -8% | -$2.77M |
|
432
CALL
Petrobras
PBR
$122B
| $25.6M | 0.03% |
2,077,300
+315,200
| +18% | +$4.17M |
|
433
PUT
Vanguard FTSE Europe ETF
VGK
$29.8B
| $25.4M | 0.03% |
556,000
+478,200
| +615% | +$25M |
|
434
CALL
Royal Bank of Canada
RY
$290B
| $25.4M | 0.03% |
281,900
+61,200
| +28% | +$5.87M |
|
435
CALL
Blackstone
BX
$152B
| $25.1M | 0.03% |
300,200
-150,900
| -33% | -$14.6M |
|
|
PXD
436
PUT
DELISTED
Pioneer Natural Resource Co.
PXD
| $24.9M | 0.03% |
115,100
+16,000
| +16% | +$3.66M |
|
437
CALL
Agnico Eagle Mines
AEM
$72.3B
| $24.9M | 0.03% |
589,800
+236,100
| +67% | +$10.1M |
|
438
PUT
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$163M
| $24.8M | 0.03% |
73,219
+5,400
| +8% | +$1.79M |
|
439
CALL
Xtrackers MSCI Emerging Markets Hedged Equity ETF
DBEM
$107M
| $24.8M | 0.03% |
914,800
-506,200
| -36% | -$11.2M |
|
440
Union Pacific
UNP
$181B
| $24.8M | 0.03% |
127,150
+77,146
| +154% | +$17.1M |
|
441
CALL
Cloudflare
NET
$93.1B
| $24.8M | 0.03% |
447,700
+26,700
| +6% | +$1.59M |
|
442
VanEck Gold Miners ETF
GDX
$22.9B
| $24.7M | 0.03% |
1,023,577
+470,563
| +85% | +$11.9M |
|
|
FISV
443
CALL
Fiserv Inc
FISV
$26.6B
| $24.6M | 0.03% |
262,700
+51,500
| +24% | +$5.25M |
|
444
CALL
Dollar Tree
DLTR
$22.6B
| $24.6M | 0.03% |
180,600
+111,700
| +162% | +$17.4M |
|
445
PUT
Vale
VALE
$63.1B
| $24.6M | 0.03% |
1,843,200
+150,800
| +9% | +$1.98M |
|
446
PUT
Constellation Brands
STZ
$22.1B
| $24.5M | 0.03% |
106,600
+44,600
| +72% | +$10.9M |
|
|
WBA
447
CALL
DELISTED
Walgreens Boots Alliance
WBA
| $24.4M | 0.03% |
776,700
+444,900
| +134% | +$16.5M |
|
|
MRO
448
CALL
DELISTED
Marathon Oil Corporation
MRO
| $24.2M | 0.03% |
1,072,100
-537,400
| -33% | -$12.7M |
|
449
Alphabet (Google) Class C
GOOG
$3.88T
| $24.1M | 0.03% |
250,975
-292,565
| -54% | -$32.7M |
|
450
CALL
RH
RH
$3.14B
| $24.1M | 0.03% |
97,800
+13,200
| +16% | +$3.56M |
|
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.