Simplex Trading, LLC

In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 12, 2025), Simplex Trading, LLC reported 2,403 stock positions worth $2.8 billion. Its top holding was iShares 20+ Year Treasury BD (TLT) at 9.9% of the portfolio, followed by Nvidia (NVDA, 4.3%) and Alphabet Class A (GOOGL, 3.0%). Compared with Q4 2024, it opened 902 new positions, sold out of 942, added to 737 and reduced 754. The biggest buy was a new position in iShares 20+ Year Treasury BD (TLT) and the biggest sale Apple (AAPL, shares −90%).

Most Recent 13F
Q2 2026
Location
CHICAGO, IL
CIK
0001488542
Portfolio Value
$2.8B (Q1 2025)
SEC Filing
0001488542-25-000007 ↗ filed May 12, 2025

Holdings Value

0$1.0B$2.0B$3.0B$4.0B$5.0B Q1 2024: $3.4B Q1 2024 Q2 2024: $3.1B Q2 2024 Q3 2024: $3.0B Q3 2024 Q4 2024: $3.5B Q4 2024 Q1 2025: $2.8B $2.8B Q1 2025 Q2 2025: $3.7B Q2 2025 Q3 2025: $4.5B Q3 2025 Q4 2025: $3.6B Q4 2025 Q1 2026: $3.2B Q1 2026 Q2 2026: $3.8B Q2 2026

Holdings 2,403 stocks · $2.8B

TLT iShares 20+ Year Treasury BD 9.88% 3,057,978 $278.4M New
NVDA Nvidia Corp. 4.28% 1,113,380 $120.7M Add +175.6%
GOOGL Alphabet Inc. Class A 2.99% 545,647 $84.4M New
TSM Taiwan Semiconductor-SP ADR 2.83% 480,522 $79.8M Add +1544.7%
INTC Intel Corp. 2.72% 3,380,296 $76.8M Reduce -5.3%
MU Micron Technology Inc. 2.02% 653,938 $56.8M Add +1507.7%
AAPL Apple Inc. 1.96% 248,768 $55.3M Reduce -90.0%
AMZN Amazon.com Inc. 1.90% 281,158 $53.5M New
PFE Pfizer Inc. 1.45% 1,616,802 $41.0M Add +3.2%
C Citigroup Inc. 1.31% 519,037 $36.8M Reduce -24.5%
NKE Nike Inc. Class B 1.21% 537,279 $34.1M Reduce -9.1%
NFLX Netflix Inc. 1.16% 35,144 $32.8M New
TSLA Tesla Inc. 1.08% 117,279 $30.4M Add +1053.9%
BIDU Baidu Inc. - Spon ADR 1.07% 328,925 $30.3M Add +25.0%
CEG Constellation Energy 0.97% 135,142 $27.2M Add +125.2%
ARM Arm Holdings PLC-ADR 0.96% 252,824 $27.0M Add +36.1%
CI The Cigna Group 0.91% 78,302 $25.8M Reduce -10.1%
B Barrick Gold Corp. 0.85% 1,235,654 $24.0M Reduce -32.0%
IBIT iShares Bitcoin Trust ETF 0.84% 503,019 $23.5M New
DELL Dell Technologies -C 0.82% 253,933 $23.1M Add +148.5%
KWEB Kranesh Csi China Internet 0.81% 650,233 $22.7M Add +22564.1%
CVS CVS Health Corp. 0.80% 332,331 $22.5M Reduce -27.4%
PSQ Proshares Short QQQ 0.71% 495,320 $20.1M Add +8.8%
ET Energy Transfer LP 0.70% 1,055,768 $19.6M Reduce -10.4%
XBI SS SPDR S&P Biotech ETF 0.69% 241,039 $19.5M Reduce -20.4%
UNH Unitedhealth Group Inc. 0.67% 36,061 $18.9M Add +19.9%
NVO Novo-Nordisk A/S-Spons ADR 0.59% 239,010 $16.6M New
HUM Humana Inc. 0.58% 61,672 $16.3M Reduce -37.6%
WFC Wells Fargo & Co. 0.58% 227,152 $16.3M Reduce -19.6%
NEM Newmont Corp. 0.56% 328,401 $15.9M Reduce -51.6%
COIN Coinbase Global Inc. Class A 0.54% 87,558 $15.1M Add +13.4%
AVGO Broadcom Inc. 0.52% 86,845 $14.5M New
SOXL Direx Dail Semi Bu 3X Et-Usd 0.50% 882,724 $14.1M Reduce -11.8%
MSFT Microsoft Corp. 0.49% 36,777 $13.8M Add +1316.7%
BKNG Booking Holdings Inc. 0.46% 2,827 $13.0M Reduce -21.4%
FAS Dirx DLY Finacial B3X ETF-Ui 0.46% 81,620 $12.9M Reduce -38.9%
SOFI Sofi Technologies Inc. 0.44% 1,074,410 $12.5M Add +92.3%
F Ford Motor Co. filed as FORD MTR CO 0.44% 1,223,600 $12.3M Add +42.9%
DIS The Walt Disney Co. filed as DISNEY WALT CO 0.43% 123,121 $12.2M Add +59.8%
DASH DoorDash Inc. Class A 0.43% 65,971 $12.1M New
GOOG Alphabet Inc. Class C 0.41% 74,827 $11.7M Reduce -17.0%
WBD Warner Bros Discovery Inc. 0.41% 1,086,804 $11.7M Reduce -37.6%
HD Home Depot Inc. 0.41% 31,546 $11.6M New
PDD PDD Holdings Inc. 0.41% 97,380 $11.5M New
BMY Bristol-Myers Squibb Co. 0.41% 188,899 $11.5M Reduce -43.9%
BX Blackstone Inc. 0.41% 82,337 $11.5M New
BEKE Ke Holdings Inc.-ADR filed as KE HLDGS INC 0.41% 570,560 $11.5M Add +524.2%
CVNA Carvana Co. 0.40% 53,855 $11.3M Add +27.9%
SLB SLB Ltd. filed as SCHLUMBERGER LTD 0.39% 260,039 $10.9M Reduce -0.8%
XLK SS Technology Select Sector 0.37% 50,713 $10.5M New
EIX Edison International 0.37% 176,880 $10.4M Add +159251.4%
UPS United Parcel Service Class B 0.36% 93,523 $10.3M New
HON Honeywell International Inc. 0.35% 47,205 $10.0M Add +21.1%
GM General Motors Co. 0.35% 211,047 $9.9M Add +1643.5%
JD Jd.com Inc.-ADR 0.35% 241,198 $9.9M Reduce -22.1%
SNAP Snap Inc. Class A 0.35% 1,134,433 $9.9M New
IAU iShares Gold Trust 0.33% 158,432 $9.3M Add +135.3%
RIO Rio Tinto PLC-Spon ADR 0.32% 151,186 $9.1M New
FBTC Fidelity Wise Origin Bitcoin 0.30% 119,045 $8.6M Reduce -27.3%
MSTR Strategy Inc. filed as MICROSTRATEGY INC 0.30% 29,313 $8.4M Reduce -89.7%
ALB Albemarle Corp. 0.30% 117,090 $8.4M Reduce -7.1%
BSX Boston Scientific Corp. 0.29% 81,674 $8.2M New
MUB iShares National Muni Bond E 0.29% 77,947 $8.2M Reduce -19.4%
TGT Target Corp. 0.29% 78,101 $8.2M Add +80.5%
IREN Iren Ltd. filed as IREN LIMITED 0.28% 1,287,755 $7.8M Add +24.3%
CCJ Cameco Corp. 0.27% 188,210 $7.7M Add +231.4%
TFC Truist Financial Corp. 0.27% 186,150 $7.7M New
MMM 3M Co. 0.27% 52,139 $7.7M Add +840.3%
ENPH Enphase Energy Inc. 0.26% 119,961 $7.4M New
MELI MercadoLibre Inc. 0.26% 3,796 $7.4M Add +48.8%
DG Dollar General Corp. 0.26% 82,295 $7.2M Add +123.7%
XLP SS Consumer Staples Sel Sect 0.26% 88,343 $7.2M Add +40.6%
EEM iShares MSCI Emerging Market 0.25% 163,914 $7.2M Reduce -1.2%
NICE Nice Ltd. - Spon ADR 0.25% 46,451 $7.2M Add +151.3%
ASTS Ast Spacemobile Inc. 0.25% 309,098 $7.0M Add +13.5%
FSLR First Solar Inc. 0.25% 55,440 $7.0M New
PBR Petroleo Brasileiro-Spon ADR 0.25% 483,943 $6.9M Add +30.9%
NOW ServiceNow Inc. 0.24% 8,483 $6.8M New
FE Firstenergy Corp. 0.24% 165,479 $6.7M Add +517.3%
TIGR Up Fintech Holding Ltd. - ADR 0.24% 775,806 $6.7M Add +86.4%
CP Canadian Pacific Kansas City 0.23% 93,219 $6.5M Add +53.9%
ASHR Xtrackers Harvest Csi 300 CH 0.23% 245,737 $6.5M New
YANG Dir DLY FT Chi Be 3X ETF-Usd 0.23% 164,639 $6.5M Add +2125.2%
CCI Crown Castle Inc. 0.23% 62,532 $6.5M New
TWLO Twilio Inc. Class A 0.23% 65,891 $6.5M Reduce -45.8%
TEVA Teva Pharmaceutical-SP ADR 0.23% 416,763 $6.4M New
ZS Zscaler Inc. 0.22% 31,247 $6.2M New
XLB SS Materials Select Sector 0.22% 71,945 $6.2M Reduce -28.7%
SMG Scotts Miracle-Gro Co. 0.21% 109,665 $6.0M Add +2752.2%
WDC Western Digital Corp. 0.21% 145,433 $5.9M Add +87.7%
EMN Eastman Chemical Co. 0.21% 65,878 $5.8M New
PNC PNC Financial Services Group 0.20% 32,279 $5.7M Add +292.7%
KBE SS SPDR S&P Bank ETF 0.20% 105,468 $5.6M Add +57.4%
MRNA Moderna Inc. 0.19% 191,230 $5.4M Add +83.5%
RIVN Rivian Automotive Inc. Class A 0.19% 432,137 $5.4M Reduce -35.3%
WMT Walmart Inc. 0.18% 58,815 $5.2M Add +124.6%
ZIM Zim Integrated Shipping Serv 0.18% 346,780 $5.1M Add +356.5%
AAL American Airlines Group Inc. 0.18% 478,235 $5.0M Add +89.8%
AGNC AGNC Investment Corp. 0.18% 524,407 $5.0M Add +407.2%
ARKB ARK 21SHARES Bitcoin ETF 0.18% 60,840 $5.0M Add +0.3%

Show all 2,403 holdings

Options reported separately and not counted above: STATE STR SPDR S&P 500 ETF T puts ($29.8B), STATE STR SPDR S&P 500 ETF T calls ($13.0B), INVESCO QQQ TR puts ($7.3B), ISHARES TR puts ($7.2B), ISHARES TR calls ($4.0B), INVESCO QQQ TR calls ($3.9B), TESLA INC puts ($3.9B), TESLA INC calls ($3.7B), NVIDIA CORPORATION puts ($3.4B), NVIDIA CORPORATION calls ($2.9B), META PLATFORMS INC calls ($2.2B), APPLE INC calls ($2.1B), and 6329 more.

Portfolio Sells Q4 2024 → Q1 2025

AAPL Apple Inc. Reduce -90.0% 1.96% −15.58
MSTR Strategy Inc. Reduce -89.7% 0.30% −2.03
BABA Alibaba Group Holding-SP ADR Sold out 0.00% −1.38
AMD Advanced Micro Devices Sold out 0.00% −1.36
QQQ Invesco QQQ Trust Series 1 Sold out 0.00% −1.11
UBER Uber Technologies Inc. Reduce -93.6% 0.10% −0.94
SBUX Starbucks Corp. Sold out 0.00% −0.92
HYG Ishr Ibx Usd Hiyld CB ETF-Ui Sold out 0.00% −0.68
TIDAL TRUST II Reduce -91.4% 0.06% −0.64
FTNT Fortinet Inc. Sold out 0.00% −0.59
VZ Verizon Communications Inc. Sold out 0.00% −0.57
JNJ Johnson & Johnson Sold out 0.00% −0.48
BILI Bilibili Inc.-Sponsored ADR Reduce -95.2% 0.03% −0.48
DVN Devon Energy Corp. Sold out 0.00% −0.46
U Unity Software Inc. Sold out 0.00% −0.44
SMCI Super Micro Computer Inc. Sold out 0.00% −0.42
BRK.B Berkshire Hathaway Inc. Class B Sold out 0.00% −0.42
ADBE Adobe Inc. Sold out 0.00% −0.41
HSY The Hershey Co. Reduce -94.3% 0.03% −0.40
DIA SS SPDR Dow Jones Indus Avg Sold out 0.00% −0.38
SPY SS SPDR S&P 500 ETF Trust-US Sold out 0.00% −0.37
AEM Agnico Eagle Mines Ltd. Sold out 0.00% −0.37
KO The Coca-Cola Co. Sold out 0.00% −0.35
X United States Steel Corp. Sold out 0.00% −0.34
SE Sea Ltd.-ADR Sold out 0.00% −0.32
DLTR Dollar Tree Inc. Sold out 0.00% −0.31
META Meta Platforms Inc. Class A Sold out 0.00% −0.31
GDX Vaneck Gold Miners ETF Sold out 0.00% −0.30
MARA Mara Holdings Inc. Sold out 0.00% −0.30
CVX Chevron Corp. Sold out 0.00% −0.29
SMH Vaneck Semiconductor ETF Sold out 0.00% −0.29
XYZ Block Inc. Sold out 0.00% −0.28
VFC VF Corp. Reduce -98.1% 0.00% −0.27
SOXL Direx Dail Semi Bu 3X Et-Usd Reduce -11.8% 0.50% −0.27
DHR Danaher Corp. Reduce -71.5% 0.13% −0.27
ETF OPPORTUNITIES TRUST Reduce -92.6% 0.02% −0.27
TSLL Dirx DLY Tsla Bul 2X ETF-Aui Reduce -41.4% 0.09% −0.27
CELH Celsius Holdings Inc. Reduce -79.8% 0.14% −0.26
CORZ Core Scientific Inc. Reduce -79.8% 0.04% −0.26
XPEV Xpeng Inc. - ADR Sold out 0.00% −0.25
VALE Vale SA-SP ADR Reduce -84.6% 0.07% −0.25
XOM Exxon Mobil Corp. Sold out 0.00% −0.25
TT Trane Technologies PLC Sold out 0.00% −0.23
YINN Direxion DLY Ftse CH BL3X-Ui Sold out 0.00% −0.23
XLU St Sr Utl SL SE SPDR ETF-Usd Reduce -74.7% 0.11% −0.22
COST Costco Wholesale Corp. Sold out 0.00% −0.22
LI Li Auto Inc. - ADR Reduce -93.2% 0.02% −0.21
ASML ASML Holding NV-NY Reg SHS Sold out 0.00% −0.21
MCHI iShares MSCI China ETF Sold out 0.00% −0.21
AMC AMC Entertainment HLDS Class A Sold out 0.00% −0.21

Portfolio Buys Q4 2024 → Q1 2025

TLT iShares 20+ Year Treasury BD New 9.88% +9.88
GOOGL Alphabet Inc. Class A New 2.99% +2.99
NVDA Nvidia Corp. Add +175.6% 4.28% +2.75
TSM Taiwan Semiconductor-SP ADR Add +1544.7% 2.83% +2.67
MU Micron Technology Inc. Add +1507.7% 2.02% +1.92
AMZN Amazon.com Inc. New 1.90% +1.90
NFLX Netflix Inc. New 1.16% +1.16
TSLA Tesla Inc. Add +1053.9% 1.08% +0.96
IBIT iShares Bitcoin Trust ETF New 0.84% +0.84
KWEB Kranesh Csi China Internet Add +22564.1% 0.81% +0.80
NVO Novo-Nordisk A/S-Spons ADR New 0.59% +0.59
CEG Constellation Energy Add +125.2% 0.97% +0.59
AVGO Broadcom Inc. New 0.52% +0.52
DELL Dell Technologies -C Add +148.5% 0.82% +0.49
MSFT Microsoft Corp. Add +1316.7% 0.49% +0.46
BIDU Baidu Inc. - Spon ADR Add +25.0% 1.07% +0.45
DASH DoorDash Inc. Class A New 0.43% +0.43
HD Home Depot Inc. New 0.41% +0.41
PDD PDD Holdings Inc. New 0.41% +0.41
BX Blackstone Inc. New 0.41% +0.41
XLK SS Technology Select Sector New 0.37% +0.37
EIX Edison International Add +159251.4% 0.37% +0.37
UPS United Parcel Service Class B New 0.36% +0.36
BEKE Ke Holdings Inc.-ADR Add +524.2% 0.41% +0.36
SNAP Snap Inc. Class A New 0.35% +0.35
GM General Motors Co. Add +1643.5% 0.35% +0.33
RIO Rio Tinto PLC-Spon ADR New 0.32% +0.32
ARM Arm Holdings PLC-ADR Add +36.1% 0.96% +0.31
BSX Boston Scientific Corp. New 0.29% +0.29
PFE Pfizer Inc. Add +3.2% 1.45% +0.28
TFC Truist Financial Corp. New 0.27% +0.27
ENPH Enphase Energy Inc. New 0.26% +0.26
MMM 3M Co. Add +840.3% 0.27% +0.25
FSLR First Solar Inc. New 0.25% +0.25
UNH Unitedhealth Group Inc. Add +19.9% 0.67% +0.24
NOW ServiceNow Inc. New 0.24% +0.24
IAU iShares Gold Trust Add +135.3% 0.33% +0.24
PSQ Proshares Short QQQ Add +8.8% 0.71% +0.23
ASHR Xtrackers Harvest Csi 300 CH New 0.23% +0.23
CCI Crown Castle Inc. New 0.23% +0.23
TEVA Teva Pharmaceutical-SP ADR New 0.23% +0.23
ZS Zscaler Inc. New 0.22% +0.22
YANG Dir DLY FT Chi Be 3X ETF-Usd Add +2125.2% 0.23% +0.22
FE Firstenergy Corp. Add +517.3% 0.24% +0.21
SMG Scotts Miracle-Gro Co. Add +2752.2% 0.21% +0.21
EMN Eastman Chemical Co. New 0.21% +0.21
SOFI Sofi Technologies Inc. Add +92.3% 0.44% +0.20
F Ford Motor Co. Add +42.9% 0.44% +0.20
CCJ Cameco Corp. Add +231.4% 0.27% +0.19
DIS The Walt Disney Co. Add +59.8% 0.43% +0.19

Options Activity Q4 2024 → Q1 2025

STATE STR SPDR S&P 500 ETF T put Reduce -1.7% 58,393,000 $29.8B
STATE STR SPDR S&P 500 ETF T call Add +19.8% 23,233,000 $13.0B
INVESCO QQQ TR put Add +40.8% 15,588,600 $7.3B
ISHARES TR put Add +3.4% 48,357,800 $7.2B
ISHARES TR call Add +5.3% 36,206,900 $4.0B
INVESCO QQQ TR call Add +32.8% 8,548,600 $3.9B
TESLA INC put Reduce -2.6% 14,885,300 $3.9B
TESLA INC call Reduce -1.4% 14,434,600 $3.7B
NVIDIA CORPORATION put Reduce -11.3% 30,915,800 $3.4B
NVIDIA CORPORATION call Reduce -31.9% 27,248,600 $2.9B
META PLATFORMS INC call Add +21.4% 3,902,700 $2.2B
APPLE INC call Reduce -35.2% 9,263,700 $2.1B
APPLE INC put Reduce -41.4% 7,997,000 $1.8B
SPDR GOLD TR call Add +6.7% 5,729,200 $1.7B
META PLATFORMS INC put Add +17.4% 2,652,800 $1.5B
SELECT SECTOR SPDR TR put Reduce -4.8% 18,023,300 $1.4B
AMAZON COM INC call Add +30.8% 7,114,200 $1.4B
SPDR GOLD TR put Add +25.1% 4,362,900 $1.3B
MICROSOFT CORP call Reduce -10.1% 3,083,100 $1.2B
STRATEGY INC put Reduce -9.4% 4,063,600 $1.1B
AMAZON COM INC put Reduce -3.4% 5,310,200 $1.0B
ALPHABET INC call Reduce -8.5% 6,220,200 $952.9M
STRATEGY INC call Reduce -16.1% 3,131,900 $902.8M
SELECT SECTOR SPDR TR call Reduce -22.6% 11,411,300 $852.0M
MICROSOFT CORP put Reduce -19.4% 2,211,500 $830.2M
STATE STR SPDR DOW JONES IND call Add +90.5% 1,959,600 $822.8M
ALIBABA GROUP HLDG LTD call Reduce -37.9% 6,161,700 $814.8M
BOOKING HOLDINGS INC put Add +42.2% 174,200 $802.5M
ALPHABET INC put Reduce -8.6% 4,607,600 $715.0M
NETFLIX INC. put Reduce -24.3% 696,100 $649.1M
ADVANCED MICRO DEVICES INC call Add +6.8% 6,403,400 $596.6M
BROADCOM INC put Reduce -16.2% 3,379,300 $565.8M
ISHARES TR put Add +49.7% 6,189,300 $506.1M
PALANTIR TECHNOLOGIES INC call Reduce -23.3% 5,929,800 $500.5M
VANECK ETF TRUST call Reduce -31.1% 5,113,300 $491.3M
ISHARES SILVER TR call Reduce -12.1% 15,779,000 $489.0M
ADVANCED MICRO DEVICES INC put Add +1.2% 4,710,200 $483.9M
VANECK ETF TRUST put Add +33.9% 5,726,300 $477.7M
NETFLIX INC. call Reduce -11.4% 506,000 $471.9M
TAIWAN SEMICONDUCTOR MANUFAC put Add +0.1% 2,811,700 $466.7M
ISHARES BITCOIN TRUST ETF call Reduce -2.1% 9,458,400 $442.7M
PALANTIR TECHNOLOGIES INC put Reduce -28.2% 5,378,000 $427.5M
BROADCOM INC call Reduce -26.1% 2,695,100 $420.6M
MICRON TECHNOLOGY INC call Add +72.9% 4,511,500 $392.0M
ALIBABA GROUP HLDG LTD put Reduce -5.0% 2,998,100 $387.0M
SPDR SERIES TRUST put Reduce -5.8% 5,873,800 $347.7M
SPDR SERIES TRUST call Add +21.9% 5,503,800 $346.3M
BOOKING HOLDINGS INC call Reduce -46.6% 77,200 $310.5M
UNITEDHEALTH GROUP INC call Add +20.3% 616,300 $308.6M
TAIWAN SEMICONDUCTOR MANUFAC call Reduce -2.7% 1,844,600 $306.2M

Showing the first 50 of 6,789.

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 2,733$3.8BNVDA, IWM, TLT, GOOGL, SOXX
Q1 2026 2,613$3.2BNVDA, AMZN, SPY, META, TSM
Q4 2025 2,449$3.6BAAPL, NVDA, AVGO, NFLX, SPY
Q3 2025 2,622$4.5BNVDA, AAPL, MSFT, IWM, UNH
Q2 2025 2,428$3.7BNVDA, AAPL, AVGO, TLT, GOOGL
Q1 2025 2,403$2.8BTLT, NVDA, GOOGL, TSM, INTC
Q4 2024 2,442$3.5BAAPL, MSTR, INTC, NVDA, BABA
Q3 2024 2,294$3.0BNVDA, PDD, BABA, BA, KWEB
Q2 2024 2,401$3.1BNVDA, AVGO, INTC, C, PFE
Q1 2024 2,382$3.4BPFE, XLE, BA, INTC, TSM