Shiba Inu (CRYPTO: SHIB) is up 8% in the last 7 days, outperforming the top meme coin Dogecoin (CRYPTO: DOGE), which gained 6% over the past week. What Happened: The surge comes after the SHIB lead developer, Shytoshi Kusama, last week unveiled details about an upcoming product line called “Shibacals: Authenticated Collectibles.