on the up and up

becoming increasingly successful with the passage of time

The origin of this idiom is believed to have originated in the United States in the early 20th century. The phrase "on the up and up" was originally used in the context of stock market trading, where it referred to a rising trend in stock prices. Over time, the phrase began to be used more widely to describe any situation where things were improving or becoming more positive.

After a difficult start, things were finally on the up and up for the team, with a string of victories in their last few games.
Despite the challenges they faced, the company kept moving forward and eventually, things were on the up and up.

in a way that involves no deception or rule violations

The idiom "on the up and up" originated in the early 20th century in the United States. It is believed to have originated from the world of boxing, where referees would monitor the action from an elevated position to ensure fair play. The phrase "up and up" refers to an upward direction, suggesting honesty and integrity. Over time, it has evolved to mean acting in a transparent and trustworthy manner, without engaging in deception or rule violations.

The company's financial reports are always on the up and up, providing accurate and honest information to its investors.
I can assure you that the election process was completely on the up and up, with no fraudulent activities involved.
The lawyer advised his client to handle the legal matter on the up and up, following all the legal procedures diligently.
As a journalist, it is essential to report the news on the up and up, without any bias or distortion of facts.
The athlete was praised for competing on the up and up, adhering to the rules and displaying sportsmanship throughout the game.