A slang term used to describe a moderate price increase in a stock. A pip-squeak pop is generally used to describe a situation where a stock appreciates a sizable amount in a short period of time, but does not double or triple in value.

Traders of penny stocks often use the term when a holding climbs 25-50%, which would in most cases be considered a significant increase, however penny traders generally seek returns far greater when investing in such stocks. Pip-squeak pop has also been known to be used by forex traders, referencing a small move by a curency in a favorable direction by a few "pips".