Zoltek ( ZOLT) is an applied technology and advanced materials company. The stock is trading up 10.8% at $14.53 in recent trading. Today's Volume: 1.3 million Average Volume: 334,511 Volume % Change: 503% From a technical standpoint, ZOLT has made a monster move on huge volume in the past few trading sessions with shares trading up from under $10 to its current price of around $14.50. This big run has now pushed ZOLT into overbought territory since the stock's relative strength index (RSI) is 88. >>7 Relative Strength Stocks to Beat the Market I would be careful initiating new long positions on ZOLT with such a high RSI reading, unless they are for very short-term intraday trades. Keep in mind that ZOLT is also close to testing some major overhead resistance at $16.06.