Which grocery chains have scored the strongest same-store sales gains? Here's the data (for the latest fiscal year) from the eMarketer Retail & Ecommerce database.

1) Weis Markets - 2.9%
2) Sprouts Farmers Market - 2.7%
3) Ingles Markets - 2.0%
4) Publix Super Markets - 1.9%
5) Natural Grocers - 1.4%

See the full list.