Underperformer vs Underperformed - What's the difference?

As a noun underperformer

is one who or that which underperforms, having performance that is below average or below expectations; often specifically a company or stock.

past tense of underperform.

(en noun)

One who or that which underperforms, having performance that is below average or below expectations; often specifically a company or stock

*{{quote-news, 1986, June 24, Donna Stef Hansard, Lord & Taylor Parent Firm Undecided About May Offer, Dallas News citation

, passage="Any underperformer in this business is vulnerable as a takeover," Raiff said.}}

*underachiever

(head)

(underperform)

(en verb)

To underachieve, to not reach standards or expectations, especially with respect to a financial investment.

* 2002 , Robert M. Grant, Contemporary Strategy Analysis: Concepts, Techniques, Applications , Page 40:

Even outside the Anglo-Saxon world, underperforming public companies have become vulnerable to hostile takeover.

* overperform

* underperformance * underperformer