“The Reliable” – FINRA Equity Short Interest
Post# of 27043
The most accurate measure of short selling is the data reported by all broker-dealers to FINRA on a bi-weekly basis. These numbers reflect the total number of shares in the security sold short, i.e. the sum of all firm and customer accounts that have short positions.
This information is available on www.otcmarkets.com on the company quote pages. As an example, OTC Markets Group has a few hundred shares sold short on average, which represents a fraction of our daily trading volume and shares outstanding.