be on a losing streak

To be suffering a consecutive series of defeats, losses, or instances of ill fortune. The former champions have been on a losing streak, losing all 12 games since the start of the season. After being on a losing streak in the smartphone market for nearly 10 years, the tech giant finally found global success with its latest device. Yet another company that I invested in crashed and burned. I am on one heck of a losing streak in the stock market.