American Technology Research analyst Shaw Wu this morning cut his rating on Apple (AAPL) to Neutral from Buy.

Wu gave four reasons for the downgrade.

  • The risk/reward is not compelling. The stock is “no longer inexpensive” trading at 32x calendar 2008 EPS and 28x 2009, he says. Wu notes that the stock has recently allied to near his $175 price target.
  • Expectations are high. “We are concerned that expectations may be too high with the stock rebounding over 45% in recent weeks,” he writes. “While we believe AAPL will report a strong quarter relative to guidance and published consensus estimates, we are concerned whether it will be good enough and whether investors will be as forgiving with conservative guidance.”
  • Possible product vacuum ahead: “We are concerned there could be a vacuum” before the arrival of 3G iPhones, he writes. “Our supply chain checks indicate 3G iPhones will not likely ship in volume until July and new Macs until the Sept. quarter, likely putting stress on the June quarter.”
  • Investors too focused on near-term. “While we maintain our longer-term fundamental positive view on AAPL, from a stock perspective, we find it difficult to recommend purchasing at current levels,”" Wu writes. “The reality is that AAPL shares are very volatile and trading action suggests investor focus on near-term results. Arguably, shares should not have hit as low as $115 and as high as $168 in such a short period of 7 weeks, but it has.”

Apple this morning is down $6.26, or 3.7%, to $161.90.