The market manipulates itself. "Market manipulation comes in many shapes and forms, and it’s always prohibited. When a financial professional engages in an activity that artificially influences the price of a security, they manipulate the market. We’ll cover these specific prohibited activities in this section:
Painting the tape
Marking the open or close"
Selling at the bid, buying at the ask....is never market manipulation no matter the quantity, Large stakeholders become the market when they sell in large blocks for whatever reason.
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