In a newly published study that draws on the first comprehensive data set of US-based Jewish philanthropic organizations, Hanna Shaul Bar Nissim and Mathew Brookner show that such organizations gave more than $46 billion in grants in the period between 2000–2015. Beyond what it reveals about the amount of money American Jews invest in philanthropy, the data is full of yet-to-be-tapped insights into the nature of American Jewish life today, including the importance of foundations in setting the Jewish communal agenda.*