Cramer Takes Your Questions

Before answering "Mad Mail' on Friday, Cramer had some homework to do.

On Friday, Chris in Oklahoma asked about Universal Display . The Ewing, N.J.-based company makes organic light emitting diode technologies. After signing agreements with major companies, like Panasonic and Samsung, its stock has skyrocketed. To Cramer, it doesn't make sense to chase this stock. He recommends keeping your eye on it, though.

Meanwhile, Matt in Kansas wanted to know whether now is the time to get in Caterpillar or Deere . These stocks have taken a beating lately, Cramer said, so now is not a good time. Between the two, he prefers Deere because he thinks the agriculture market is stronger, but warned both stocks could get a severe haircut following more bad news out of Europe.

Brandon in California told Cramer he bought January 2013 40 calls of Enterprise Products Partners when the stock fell in August. He doesn't think it will continue to fall, though, so he wanted Cramer's advice. The "Mad Money" host said investors should never buy calls of stocks with big dividends, but would hold onto these calls for now.

Finally, Diane asked for Cramer's thoughts on American Tower . Cramer said he could get behind this stock because the company has been bullish about its future prospects, including an international expansion.

When this story was published, Cramer's charitable trust owned Deere.

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