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 | |
|---|---|---|---|---|---|---|
3776
PUT
Host Hotels & Resorts
HST
$17.5B
| $385K | ﹤0.01% |
24,600
-26,400
| -52% | -$503K |
|
3777
PUT
AquaBounty Technologies
AQB
$4.73M
| $384K | ﹤0.01% |
11,255
+8,970
| +393% | +$274K |
|
|
ETWO
3778
DELISTED
E2open Parent Holdings
ETWO
| $384K | ﹤0.01% |
49,416
-41,883
| -46% | -$336K |
|
|
SKX
3779
DELISTED
Skechers
SKX
| $384K | ﹤0.01% |
10,795
-28,061
| -72% | -$1.08M |
|
|
NATI
3780
CALL
DELISTED
National Instruments Corp
NATI
| $384K | ﹤0.01% |
12,300
+2,500
| +26% | +$88.6K |
|
3781
PUT
Atomera
ATOM
$173M
| $383K | ﹤0.01% |
40,900
+32,600
| +393% | +$359K |
|
3782
CALL
Hess Midstream
HESM
$5.19B
| $383K | ﹤0.01% |
13,700
+700
| +5% | +$21.6K |
|
|
HUYA
3783
CALL
Huya Inc
HUYA
$558M
| $383K | ﹤0.01% |
98,900
+40,500
| +69% | +$169K |
|
3784
CALL
Photronics
PLAB
$1.65B
| $383K | ﹤0.01% |
19,700
+12,400
| +170% | +$217K |
|
3785
CALL
Sweetgreen
SG
$756M
| $383K | ﹤0.01% |
32,900
+12,000
| +57% | +$253K |
|
3786
PUT
Calix
CALX
$2.24B
| $382K | ﹤0.01% |
11,200
+3,000
| +37% | +$111K |
|
3787
CALL
nVent Electric
NVT
$21.6B
| $382K | ﹤0.01% |
12,200
+10,200
| +510% | +$348K |
|
3788
CALL
Clear Secure
YOU
$5.88B
| $382K | ﹤0.01% |
19,100
-96,300
| -83% | -$2.6M |
|
3789
CALL
Compass Diversified
CODI
$752M
| $381K | ﹤0.01% |
17,800
+4,400
| +33% | +$100K |
|
3790
Invesco DB Commodity Index Tracking Fund
DBC
$1.69B
| $381K | ﹤0.01% |
+14,331
| New | +$403K |
|
3791
CALL
Jacobs Solutions
J
$16B
| $381K | ﹤0.01% |
3,627
-6,770
| -65% | -$758K |
|
3792
CALL
abrdn Physical Silver Shares ETF
SIVR
$3.98B
| $381K | ﹤0.01% |
19,600
+6,200
| +46% | +$135K |
|
3793
PUT
Wendy's
WEN
$1.46B
| $381K | ﹤0.01% |
20,200
+10,400
| +106% | +$197K |
|
3794
CALL
ReNew
RNW
$2.18B
| $380K | ﹤0.01% |
58,800
-147,400
| -71% | -$1.06M |
|
3795
CALL
Yelp
YELP
$1.54B
| $380K | ﹤0.01% |
13,700
-4,700
| -26% | -$146K |
|
3796
CALL
Archrock
AROC
$6.16B
| $379K | ﹤0.01% |
45,900
+2,900
| +7% | +$26.6K |
|
3797
PUT
Equinox Gold
EQX
$7.07B
| $379K | ﹤0.01% |
85,500
+9,600
| +13% | +$62.1K |
|
3798
CALL
Modine Manufacturing
MOD
$9.46B
| $379K | ﹤0.01% |
36,000
-35,500
| -50% | -$335K |
|
3799
Xylem
XYL
$28.5B
| $379K | ﹤0.01% |
4,848
+2,877
| +146% | +$238K |
|
3800
PUT
argenx
ARGX
$55.2B
| $378K | ﹤0.01% |
1,000
+600
| +150% | +$193K |
|
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.