STUB 4 hour ATR shows possible floor establishing 14.5-16, that being said i still dont use Stubhub, so maybe someone more in touch with event/ticketing trends will find that level to be good entry.
STUB still in downtrend bottom searching phase, either way i dont think secondary ticketing has future beyond a niche feature, and i dont think Stubhub can meaningfully challenge ticketmaster anytime soon
STUB could get a swing from here to 24, but young ppl i know are not really using stubhub anymore, it being a secondary vendor means the tickets are presumed to be "high demand", but nowadays most events are losing tickets aside from Taylor Swift or something. So first hand tickets arent usually hard to get.