My Fidelity account lists my stock as 91915P107, but my TDA account lists the stock as VLDI.
It appears that since VLDI is no longer being traded on the OTC, VLDI is not actually an active trading symbol. I have no idea if they can ever use VLDI as a trading symbol again.
But, IMHO, it won't matter since there is almost zero chance VLDI will be relisted on the OTC. If they are ever relisted, I believe it will almost certainly be on the NAZ.
And if/when that happens, I suspect it will be under a new trading symbol.
JMHO
TPP