The short answer is "yes", but the longer answer is "we haven't observed this happen in practice for any significant planetoids". There was an observation five

The short answer is "yes", but the longer answer is "we haven't observed this happen in practice for any significant planetoids". There was an observation five or ten years back that originally looked like it might be two planets in the same orbit, but it turned out that one planet was in an orbit with a period exactly twice that of the interior planet.