"TRADING" implies someone is buying and someone is selling. fnmfo does not trade. bids 0, asked 0. when i had a bunch of stupid to commit, i offered to buy a couple fnmfo at market price. only a couple of shares. i got none. i tried a few more times, "no sale".
there was a convertible that disappeared a few years ago. i bought a bunch of them.... they converted to common.
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