Vista Gold is trading 15.49% down at $2.32 as the market reprices its all-stock Artemis Gold acquisition consideration. - Artemis Gold agreed to acquire Vista Gold for approximately $427 million; shareholders receive 0.0966 Artemis shares per Vista share, implying $2.83 per share. - The decline follows a 21.24% surge on September 21 after the announcement and may reflect deal-spread/exchange-ratio repricing rather than a newly reported operating setback. - Broader markets are weaker pre-market, while materials remain stronger.