This is a question is concerning Marketable Securities, I am making a balance sheet and my question is what do Marketable securities usually consist of? I have listed the the items from the problem below however I cannot find this in the book for some reason. Thanks for the help.

Cash

Short-term investments

Accounts receivable

Long-term investments

Inventory

Receivables from employees

Prepaid expenses (for 2022)

Land

Building

Equipment

Patent(Net)

Franchise(Net)

Notes receivable

Interest receivable

Accumulated depreciationbuilding

Accumulated depreciationequipment

Accounts payable

Dividends payable (payable on 1/16/2022)

Interest payable

Income taxes payable

Deferred revenue

Notes payable

Allowance for uncollectible accounts

Common stock

Retained earnings