My NVDW and HOOW are plummeting. Better to sell now or keep forever and redrip? Not retiring for another 15 years.

Bought 8k worth of NVDW last year and 1k of HOOW this year to put in my Roth. Lately they are just dropping very consistently. Not sure whether to keep or sell at this point. I'm content to just let them remain in my portfolio fwiw. Thoughts?​​​​​​​​​