Fourteen of the 18 Iowa-based companies on the Business Record's Iowa Index posted stock price gains for the month of March. Eight companies posted double-digit percentage gains. Four Iowa-based stocks posted losses, with two being double-digit percentage losses.

Meredith Corp. had the largest gain of the month with a 20.18% increase. Lee Enterprises Inc. had the second-biggest gain at 18.39%. Lee Enterprises announced a 10-1 reverse split on March 2. That split became effective  on March 12. United Fire Group Inc. had the third-biggest with a 18.17% increase.

Renewable Energy Group Inc. had the biggest loss for March at 15.08%. Workiva Inc. posted the second-biggest loss at 12.74%. FBL Financial Group was third with a 1.96% decrease.

The Iowa Index, an unweighted average price of 18 Iowa-based public companies, increased 6.39% in March, compared with a 0.41% increase in the Nasdaq stock index and a 6.62% increase in the Dow Jones Industrial Average.

The Iowa-based companies that make up the Iowa Index are in bold in this list of companies with sizable operations in the state.

See the full Iowa Index