Account Name: The account name if the report is for a single account. "Account aggregates for 'client name'" if it's for account aggregates, or "client aggregates for 'client name'" if the report is for client aggregates.
Security Name: Name of security. Securities are grouped by asset classes.
Symbol: Ticker of security, if it has one.
Shares Held: Number of shares of the security held on the "as of" date.
Cost per Share ($): Average per share cost of this holding.
Market Value ($): Market values for each security held in the account on the "as of" date.
Total Cost ($): Total cost of the security held in the account.
Account Summary row: Sum of all rows. Field is dashed for Shares Held and Cost per Share ($).