Enter a ticker symbol for fails to deliver information:

ARCA BIOPHARMA INC -- ABIO
Fails to Deliver

Short Interest | Short Volume | Borrow Data | Fails to Deliver

Date	Price	Fails to Deliver
2023-04-20	2.00	38
2023-04-19	1.99	30
2023-04-12	2.00	852
2023-04-06	1.95	163
2023-03-29	2.03	939
2023-03-28	2.02	2534
2023-03-27	2.08	2716
2023-03-23	2.05	63
2023-03-22	2.11	14
2023-03-21	2.08	24
2023-03-13	2.16	494
2023-03-10	2.16	6503
2023-03-08	2.16	50
2023-03-03	2.19	767

... naked short selling is economically equivalent to a zero-fee zero-rebate loan to the naked short seller from a participant that involuntarily fails to receive shares...
Naked Short Sales and Fails to Deliver: An Overview of Clearing and Settlement Procedures for Stock Trades in the US

Naked short selling is an important and under-reported phenomenon in the US capital markets. Keep track of the data for all of your stocks here.