India’s largest shrimp feed maker lost nearly three-fifths of its market value so far this year as shrimp prices fell and raw material costs rose, reports Bloomberg Quint.

Shares in Avanti Feeds plunged nearly 59 percent in 2018, the worst yearly fall since its 2011 listing, according to Bloomberg data.

Indian shrimp production picked up in 2012 after a disease outbreak brought down output in China, Thailand and Vietnam. But as production started to recover in these countries, international and domestic prices have fallen.