Traders at the New York Stock Exchange

A trade made on the options in Diamond Foods around 10 am Wednesday potentially netted that investor $1.7 million or more after shares of the snack maker plunged on an accounting restatement revealed later that day.

Diamond, which makes Emerald nuts and Pop Secret popcorn, was down 41 percent at its low of $21.44 after saying yesterday evening that it would need to restate its results for the last two years due to mistakes made in the accounting of payments to walnut growers.