noun
quarterly report; quarterly journal
Often refers to a publication issued four times a year, such as a company's quarterly financial report or a specialized quarterly magazine.
会社の四季報を読んで投資判断をする。
I read the company's quarterly report to make investment decisions.
月報 is a monthly report, more frequent than 四季報.
Compound of 四 (four) + 季 (seasons) + 報 (report), literally 'four-season report'.