A Failure to deliver also known as fails-to-deliver or FTD occurs when a buyer or seller is unable to meet his trading obligations.
FTDs for US listed companies are reported to the SEC and published twice a month.
Therefore there is a certain delay between the reporting and the publishing of the data.
Failures to deliver for Curaleaf (CURLF) - 3 months history
Number of shares, 3 months chart
Biweekly Failures to deliver volume for Curaleaf (CURLF) - since 2019
Volume in USD (price x number of shares), data since 2019
Curaleaf (CURLF) Failure to deliver volume, Year over Year