Yesterday the Bureau of the Public Debt announced earnings rates for Series I Savings Bonds and Series EE Savings Bonds, issued from November 1, 2017 through April 30, 2018.
Series I bond, or iBond, fixed rates are determined each May 1 and November 1. Each fixed rate applies to all I-bonds issued in the six months following the rate determination.
For more about how I Bond Rates are calculated and the new rates for older iBonds, see:
Source: Fiscal Service Announces New Savings Bonds Rates, Series I to Earn 2.58%, Series EE to Earn 0.10%