Anglesey Mining plc (LON:AYM) today noted the high level of trading in its shares but said it was unaware of any reason.
Today, shares are down almost 23% to 2.125p, having yesterday closed at 2.75p.
But that was after a near 96% increase in the price of the stock since November 11 (Friday), when shares closed at 1.40p.
Anglesey has interests in iron ore and base metals and olds 100% of the Parys Mountain underground zinc-copper-lead-silver-gold deposit in North Wales.