Newsletter guru Jim Oberweis says that, while small-cap growth stocks have performed well recently, they remain at very attractive valuations.

In his latest Forbes column, Oberweis says that small-caps (those with market caps under $1 billion) that are growing both earnings and revenue at a pace of 30% or more are trading at a median forward earnings multiple of just 13, well below the 10-year average of 17. “Some of the difference may be explained by slower growth expectations for the overall economy, but some of that discount stems from good old-fashioned fear,” Oberweis writes.

He says he thinks smaller stocks will fare “considerably better” than large-cap value stocks going forward. He offers four of his current favorite small-caps, including Stamps.com.