Here's my take on it, please don't consider it as up-ramping, just a theory I've been thinking about:
AVB has already declared to the market the results of the recent holes in their last announcement, being:
"...significant copper values in all holes, with most holes containing similar high grade copper intersects as reported form the 2010 drill programme..."
Given this they have filled their ASX disclosure requirements and (now my theory starts) handed the full results across for further analysis leading to a JORC upgrade at sometime in the future.
This is why I'm holding, but IMHO could be sometime before results are issued, but again IMO they will come and will be significant.
Time will tell.
4TK
AVB Price at posting:
14.0¢ Sentiment: Hold Disclosure: Held