Evidence of Short Attack for November 5So it appears that short activity yesterday was nearly double what it was before for CXRX. Here are the totals from the past 4 days:
| DATE | SYMBOL | ShortVolume | ShortExemptVolume | TotalVolume | Market |
| 20151105 | CXRX | 141823 | 7869 | 205177 | US |
| 20151104 | CXRX | 74116 | 2810 | 138612 | US |
| 20151103 | CXRX | 69694 | 1600 | 103945 | US |
| 20151102 | CXRX | 30583 | 4140 | 80697 | US |
Now what was interesting is the explosion of short activity on the BATS Exchanges. Here is the past 4 days data on BATS Exchanges. The thing with BATS Exchanges is they do not have the ShortExemptVolume so we cannot see how many of these sales were short exempt (not on the uptick):
| DATE | SYMBOL | ShortVolume | ShortExemptVolume | TotalVolume | Market |
| 20151105 | CXRX | 56871 | N/A | 80328 | BATS |
| 20151104 | CXRX | 600 | N/A | 1600 | BATS |
| 20151103 | CXRX | 5000 | N/A | 6500 | BATS |
| 20151102 | CXRX | 0 | N/A | 400 | BATS |
And here is by market breakdown for yesterday:
| 20151105 | CXRX | 500 | N/A | 1000 | EDGA |
| 20151105 | CXRX | 31671 | N/A | 48212 | EDGX |
| 20151105 | CXRX | 700 | N/A | 1605 | BYX |
| 20151105 | CXRX | 24000 | N/A | 29511 | BZX |
| 20151105 | CXRX | 50636 | 7769 | 85823 | NASDAQ |
| 20151105 | CXRX | 34316 | 100 | 39026 | NYSE |
Overall, ShortVolume accounted for 69.12% of reported volume yesterday for these exchanges. Or a ratio of 2.24 to 1 Short volume to regular volume. This ratio is key to understanding how many additional shares were sold short.
That the stock ended up on the day despite this, and despite the drop in Valeant means that there is a lot of buying pressure absorbing these short shares.
The other thing of interest is that the BATS transaction level short data is readily available, I am in the process of extracting and analyzing it. What it should be able to show us is at what times this activity was taking place and at which prices. I will also check the timing of the volume of the short data to the posts of the known shorts such as ALLOVERMEDIA to see if there is a correlation just for kicks.
If you are interested the daily short data can be found here and is available to anyone:
https://www.batstrading.com/market_data/shortsales/?mkt=bzx
https://regsho.finra.org/regsho-Index.html
GL today!