I put together a spreadsheet showing what the tota

I put together a spreadsheet showing what the total short volume was vs. total volume of shares traded between some recent bi-monthly reporting periods for short interest.

Date | Short interest report | short volume | total volume | %short
9-15-14 | N/A as of 9-20-14 | 53,353 | 324,040 | 16%
8-29-14 | 7,104 | 244,846 | 869,381 | 28%
8-15-14 | 11,000 | 87,022 | 824,211 | 11%
7-31-14 | 5,901 | 168,300 | 762,544 | 22%

The 'short volume' column is the aggregate of the daily short volume between the bi-monthly short interest reporting periods.

The 'total volume' column is the aggregate of the total shares traded daily between the bi-monthly short interest reporting periods.

The '%short' column is the % of shares sold short vs. the total volume traded between the bi-monthly short interest reporting periods.

A fifth column I'll put below, '% short interest' is the % of short interest vs. the total volume traded between the bi-monthly short interest reporting periods.

Date | % short interest
9-15-14 | NA
8-29-14 | 0.817%
8-15-14 | 1.335%
7-31-14 | 0.444%

As you can see, the short interest report as a gauge of the amount of shorting being done is WORTHLESS. The reason why short interest isn't reported more frequently is to protect the privacy of investment strategies that employ shorting; i.e., keep investors from forcing a short squeeze upon identifying a stock that has a large short position on any given day. This is bullsh*t imo, but I digress.

Don't be fooled by the manipulators who point to the short interest report as evidence that there isn't any shorting going on.