The analogy seems similar if applied to financial instruments such as stocks. I learnt this valuable piece of information from Michael Masters, who defines Catalyst as an event or an upcoming event that has the potential to trigger a stock price move by changing the market's perception about a company. Catalysts are repetitive events - earnings are reported four times a year; retail companies report same-store sales monthly; airline companies report load factors monthly and so on.
Even though this concept might seem rather simple and straightforward, I might not have been paying too much attention and neglecting it til now. Luckily, it always never too late for anything. Let me run through my thoughts and record this important lesson down as my personal learning log, and best method is to apply it to what has happened to some counters which can be explained by this phenomenon.
BYD - Brought to limelight due to investment by Warren Buffet. Further enhanced by planned listing in Chinese Exchange in 2010 and recently speculation of additional investment interest by Warren Buffet.
Midas - announced planned HK listing on 22 Sep 2009.

Wilmar - Proposed listing of chinese subsidiary on HKSE. Price keep climbing even during reaction and falling oil price.

Noble - Huge investment by CIC - china investment corp announced on 22 Sep 2009

Another type of catalysts which is predominant recently is the issue of right issues by companies to raise cash, which is normally accompanied by a run up of prices before announcement and subsequently prices trading higher followed by the issue of the rights. Possible explanation could be market perceiving this as a positive catalyst of raising cash to expand business and of course increased liquidity.
Examples are as below:
Sinomem

Sinotel
Surprise earnings Catalysts
Hiap Seng

Tiong Woon

Failed Catalysis even though perceived positive investment by a synergistic fund and a fundamental strong stock failed to take off.
Tat Hong


