an ex-clearing short sale will not have any impact on SHO until such time as the long buyer of that ex-cleared trade sells their stock. If the fail was ex-clearing it can still be a posted FTD as a long fail through a secondary trade.
for the volume of trading taking place, the FTD's do not seem to support a great deal of naked shorts as those NSS shorts would be represented at the long fail side. you can't tell me that longs have not dumped shares.
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