On September 9th, Destiny launched bringing the valuation of Activision Blizzard's stock, ATVI, to 23.73$ at its closing, close to an All-time high of 24.18$.The past few days however, it seems investors are singing a different tune due to Destinyreviews andsell-through - over 500 million $ worth of shipments were sent out to retailers - nonetheless325 million $ sold-through thus far effectively leaving 175 million $ worth of inventory on store shelves.As such, ever since the launch of Destiny, the stock has now rapidly declined, losing over 10% of its valuation to where it stands currently 21.60$ ish - 1.5 billion $ erased from ATVI's market cap in just a few days.Any thoughts?On a side note, ATVI achieved a successful launch of Destiny and I've been enjoying the game thoroughly. It seems investors are worried of the longterm prospects of the game; hence, the decline ATVI's stock.