I don't have a long history of following NI. How have they used...

I don't have a long history of following NI. How have they used 'Share Price Catalysts' in the past, is this common for stocks with news due to be released or, just stocks currently in trading halts.

I only say this because on many occasions PRL have released solid price sensitive announcements and the share price has actually traced down. Maybe they are privy to information on the nature of the release next week that will see a re rate to the PRL share price.