Cash holdings play an important role at the heart of firms' policies. Researchers have devoted considerable attention to the dramatic increase in cash reserves despite alternative instruments such as debt, derivatives, and credit lines. The finance literature discusses the antecedents and determinants of cash holdings as well as the different reasons for firms to hold cash. In this paper, we present a systematic literature review of cash holdings in the finance field. The major studies in this area are classified and coded, and a research agenda and recommendations that may advance the field are discussed. © 2019 Wiley Periodicals, Inc.