Explain what the following sentence means The market portfolio is a fence that protects the sheep from the wolves, but nothing can protect the sheep from themselves ...

By investing in the market portfolio investors can protect the ...

Explain what the following sentence means: The market portfolio is a fence that protects the sheep from

Question:

Explain what the following sentence means: The market is a fence that protects the sheep from the wolves, but nothing can protect the sheep from themselves?
Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...