have big run

[toan3390]

Can anyone please explain me the meaning of this idiom in the context below:

Avoid "momentum investing", the practice of buying the hottest stocks that have had the biggest run recently. This is pure speculation, not investing, and it does not wAvoid "momentum investing", the practice of buying the hottest stocks that have had the biggest run recently. This is pure speculation, not investing, and it does not work consistently. Just ask anyone who tried it with the hottest tech stocks during the late 1990s.

 

[Skrej]

Here it means stocks which have had recently had the largest volumes of purchases, or stocks which have recently had the largest gains in value.