I like the whole story and there are obvious triggers for share price increase; increase in NAV when impact of latest acquisition realised, commencement of dividends, benefits of improving stock of properties recently acquired, increased liquidity of shares etc.. (wexboy.wordpress.com)
And that's just it — I prefer to think of them as * aspects *... that can arise alone or in combination and with or without any obvious trigger. (nakedpastor.com)
Hundreds have occurred in the park, yet 15 % didn't have any obvious trigger: no earthquakes, no heavy precipitation, no freeze - thaw cycles that can cause water trapped in a fissure to freeze, expand, and gradually wedge open a crack. (sciencemag.org)