paint the tape
v. phr.— «Tuesday’s closing prices were particularly important to money managers who report their performance based on quarterly figures, and suspicions of “painting the tape”—buying shares at the end of the day to drive up the price—have been common during the final minutes of a quarter.» —“Last-Minute Share Rises Cause Trading Suspicions” by Floyd Norris New York Times Oct. 1, 2008. (source: Double-Tongued Dictionary)