Costco Wholesale ( COST), with its subsidiaries, operates membership warehouses that offer its members low prices on a limited selection of branded and selected private-label products in a range of merchandise categories. This stock is trading up 1% at $86.17 in recent trading. Today's Volume: 3.5 million Average Volume: 2.3 million Volume % Change: 90% Shares of COST are moving slightly higher today after the company reported a fiscal second quarter profit that beat Wall Street estimates as the company's low prices continued to attract customers and higher sales. From a technical perspective, COST has triggered a near-term breakout trade today now that the stock has taken out some near-term overhead resistance at $86 with high-volume. At last check though, the stock has reversed notably off its daily high of $87.20. Traders should now look for long biased trades if COST can manage to close over $86, or avoid the stock if it closes under $86 and well off the daily highs. If we get the bullish close, then look for COST to re-test its next significant overhead resistance level at $88.43 in the very near future. Costco, one of Renaissance Technologies' holdings, also shows up in Warren Buffett's portfolio as of the most recently reported quarter.