I know the
ETF field of
nasdaqlisted.txt indicate whether it is an ETF, but it is not always correct.
VelocityShares 3x Inverse Gold ETN Linked to the S&P GSCI Gold Index ER
It's an ETF on Yahoo Finance, but it's NOT an ETF in
So, what's the correct(best) way to check if a symbol is a
Equity or not? In other words, check if it's a ETF or not?