Simplex Trading, Llc

Institutional manager — quarterly 13F holdings, Q ending 2026-03-31

Reported value
$149.08B
Q ending 2026-03-31
Prior quarter
$177.42B
Q ending 2025-12-31
Change
-16.0% QoQ · +95345.2% YoY
Positions
8,927
reported holdings

Largest positions

Top 100 of 8,927 reported positions by value, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
HoldingTickerTypeValueShares
State Str Spdr S&P 500 Etf TPut$27.41B42.1M
State Str Spdr S&P 500 Etf TCall$14.08B21.7M
Invesco Qqq TrPut$6.49B11.3M
Invesco Qqq TrCall$5.99B10.4M
Ishares TrPut$5.11B34.2M
Ishares TrCall$3.87B33.4M
Tesla IncCall$3.42B9.2M
Nvidia CorporationPut$3.35B19.2M
Nvidia CorporationCall$3.33B19.1M
Tesla IncPut$3.09B8.3M
Spdr Gold TrCall$2.36B5.5M
Meta Platforms IncCall$2.35B4.1M
Apple IncCall$2.22B8.8M
Alphabet IncCall$2.07B7.2M
Spdr Gold TrPut$1.65B3.8M
Microsoft CorpCall$1.55B4.2M
Apple IncPut$1.53B6.0M
Amazon Com IncCall$1.46B7.0M
Alphabet IncPut$1.45B5.1M
Meta Platforms IncPut$1.43B2.5M
Ishares Silver TrCall$1.36B20.0M
Select Sector Spdr TrPut$1.02B15.4M
Amazon Com IncPut$914.0M4.4M
Microsoft CorpPut$875.9M2.4M
Vaneck Etf TrustPut$820.0M3.3M
Select Sector Spdr TrCall$773.4M13.0M
Netflix Inc.Put$727.7M7.6M
Ishares Silver TrPut$717.9M10.5M
Micron Technology IncPut$715.2M2.1M
Netflix Inc.Call$712.8M7.4M
Palantir Technologies IncPut$709.6M4.9M
Advanced Micro Devices IncPut$708.1M3.5M
Micron Technology IncCall$685.1M2.0M
State Str Spdr Dow Jones IndCall$680.0M1.5M
Broadcom IncPut$649.1M2.1M
Advanced Micro Devices IncCall$599.6M2.9M
Palantir Technologies IncCall$583.0M4.0M
Broadcom IncCall$519.8M1.7M
Unitedhealth Group IncCall$519.3M1.9M
Strategy IncPut$517.5M4.2M
Ishares TrPut$509.2M6.3M
Ishares Bitcoin Trust EtfCall$505.6M13.2M
Taiwan Semiconductor ManufacPut$498.5M1.5M
United Sts Oil Fd LpPut$417.3M3.3M
Vaneck Etf TrustCall$401.3M2.7M
Oracle CorpPut$383.2M2.6M
Ishares Bitcoin Trust EtfPut$381.5M9.9M
Oracle CorpCall$352.0M2.4M
Ishares IncCall$340.8M6.6M
Alibaba Group Hldg LtdPut$333.4M2.7M
Unitedhealth Group IncPut$314.0M1.2M
Intel CorpCall$304.4M6.9M
Alibaba Group Hldg LtdCall$303.5M2.4M
Kraneshares TrustCall$275.8M9.7M
Exxon Mobil CorpCall$269.3M1.6M
Ishares IncPut$266.5M3.7M
Spdr Series TrustPut$265.4M3.2M
Nvidia CorporationNVDAShares$263.2M1.5M
United Sts Oil Fd LpCall$257.2M2.0M
Taiwan Semiconductor ManufacCall$255.2M755K
Asml Hldg NvPut$238.0M180K
Goldman Sachs Group IncCall$229.3M271K
Exxon Mobil CorpPut$221.5M1.3M
Jpmorgan Chase & CoPut$221.3M752K
Goldman Sachs Group IncPut$201.0M238K
Coreweave IncCall$196.4M2.5M
Citigroup IncPut$193.0M1.7M
Spdr Series TrustCall$183.3M1.9M
Intel CorpPut$182.4M4.1M
Sandisk CorpPut$181.8M286K
Citigroup IncCall$181.4M1.6M
Berkshire Hathaway Inc DelCall$180.7M377K
Strategy IncCall$176.4M1.4M
Coreweave IncPut$175.2M2.3M
Coinbase Global IncPut$174.0M997K
Sandisk CorpCall$166.8M263K
Walmart IncCall$164.7M1.3M
Carvana CoCall$161.0M512K
Amazon Com IncAMZNShares$159.3M765K
State Str Spdr Dow Jones IndPut$157.3M340K
Chevron CorporationCall$154.3M746K
Crowdstrike Hldgs IncCall$153.3M393K
Asml Hldg NvCall$146.9M111K
Costco Wholesale CorporationCall$140.3M141K
Bank America CorpCall$136.6M2.8M
Boeing CoCall$136.6M686K
Boeing CoPut$136.5M686K
State Str Spdr S&P 500 Etf TSPYShares$131.9M203K
Meta Platforms IncMETAShares$131.5M230K
Salesforce IncCall$126.8M679K
Sofi Technologies IncCall$126.6M8.0M
Carvana CoPut$126.4M402K
Direxion Shares Etf TrustPut$125.7M2.5M
Paypal Hldgs IncCall$123.7M2.7M
Walmart IncPut$123.6M995K
Applovin CorpPut$122.5M308K
Taiwan Semiconductor ManufacTSMShares$118.9M352K
Arm Holdings PlcPut$117.9M779K
Robinhood Mkts IncCall$114.7M1.7M
Proshares TrCall$113.3M2.5M

Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.