Group Limited by Gambling.com GAMB is an efficiency marketing firm that has had outstanding results over the last six months for the online gambling sector. In contrast to the 4.1% drop of the sector it belongs to and the 2.8% decline of the Zacks S&P 500 index, the stock has increased by 23.5%. GAMB routinely generates excellent margins and free cash flow because to its robust operational model. By attracting more new depositors, it has been able to increase its pricing power.