On which exchange is it traded?
The First Trust Combined Series 557: Tax Exempt Municipal Income Trust, Intermediate, Series 30 is listed on NASDAQ.
What is its stock symbol?
The ticker symbol is FHJETX.
Does it pay dividends? What is the current yield?
It does not pay dividends to its shareholders.
What is its market cap?
As of today, no market cap data is available.
Has The First Trust Combined Series 557: Tax Exempt Municipal Income Trust, Intermediate, Series 30 ever had a stock split?
No, there has never been a stock split.