The Dow (INDEXDJX:.DJI) slid another 121 points yesterday the S&P 500 (INDEXSP:.INX) lost 17 and the Nasdaq (INDEXNASDAQ:.IXIC) fell 41. Wilshire Associates says the two-day sell-off totals $600 billion dollars in lost market value. Walt Disney (NYSE:DIS) could put more pressure on blue chip stocks today. It posted a 14% increase in earnings on continued growth at its theme parks and at ESPN. However revenue came in a bit lighter than expected and the company warns that ad sales are trending down. Gun makers Smith & Wesson (NASDAQ:SWHC) and Sturm Ruger (NYSE:RGR) have jumped in the two days following ...