It's wisest to keep things in perspective, lest you runamuck with enthusiasm. 100M would mean well over $400K at current prices, and only if current prices stayed the same for a few more weeks. Not likely, unless the Co. has bundles more $$ than what it sensibly might appear, and intentially 'starves' investors of news, for the next couple weeks.
Bottomline point is, don't expect the buyback results to create impressive market interest.
Interest will come from the speculation on the growing revenues, if they prove to be there.