Such movements in altcoin trading pairs and the correlation of their pairs with the dollar are random, and it is difficult to find a specific strategy to ensure that you achieve a profit in most of the deals that you open. I think the reason the combo is high is because China Cuts Stamp Duty Rates and you can find the news link https://thecryptobasic.com/2023/08/28/vet-cfx-combo-phb-poised-for-rally-as-china-cuts- stamp-duty-rates/
Therefore, such things require that you study currencies and news before you have indicators of an increase in the price, which is difficult due to the large number of cryptocurrencies.