I think another rule with investing is would you hold this stock...

I think another rule with investing is would you hold this stock for the next 3-5 years without actually knowning their SP?

Sometimes SP can be irrelevant with algos and traders, shorters and so on. Thats my 2 cents anyway. Of course if something changes, for instance, the coy losses a major partner or something rather and it warrants the sell, then sell, but if nothing changes ignore the noise and take the divi yields along the way (assuming it pays one), or continue to add to your holding if nothing has changed...

Cheers