What is short sale volume data?

Short Sale Volume data contains aggregated volume by security for all short sale trades executed, reported off-exchange, and publicly disseminated. FINRA makes short sale trade data publicly available for off-exchange transactions (i.e., OTC).

What are off-exchange volumes?

Off-exchange volumes also include block (trade size 10,000+ shares) and other institutional trades (plus bank capital commitment as part of institutional trades). Function of market structure – Further, as one market participant eloquently said, “So what if the level of off-exchange trading has risen”?

What is off-exchange share of market volume in low-priced stocks?

Off-exchange share of market volume in low-priced stocks is generally higher than the overall market average, and that trend has accelerated in recent weeks. Off-exchange share has also increased substantially in S&P 500 securities, rising to over 40% in June from 36% in January and 34% in October.

How do exchange and market structure analysts calculate off-exchange volumes?

A traditional view of volumes: Exchange and market structure analysts traditionally look at consolidated equity trading volumes in shares and then calculate the level of off-exchange volumes as a percent of total volumes. This is also the method used by regulators when discussing off-exchange trading.