 SAN JOSE, Calif.--BUSINESS WIRE--Calix, Inc. NYSE:CALX today announced that the company will post its second quarter 2021 stockholder letter with results for the period ending July 3, 2021 on the Calix Investor Relations website at on Monday, July 26th at 2:00 p.m. Pacific Time 5:00 p.m. Eastern Time. The release of the stockholder letter will be announced over newswire with a link to the letter to stockholders available on the investor relations secti 