The phrase "point jump" refers to a significant increase or rise in a measurement or score by a specific amount, usually represented as points. It means that there has been a noticeable leap or improvement in something. Full definition
The poll also found that 55 percent of Democratic voters have an unfavorable impression of the former congressman, a 19 - point jump from last month's poll. (newyork.cbslocal.com)
That's just under a 200 point jump in around a 3 month time period. (vitessefinancial.com)
And the 11 - basis point jump during the week is a bit bigger than usual, but not unheard - of. (marketwatch.com)