TSLA on cusp - Long Algo failure here will bring large selling

I use ALGOs as an analytic tool because they apply rules the same way so you analysis can be consistent. TSLA has had a good run on the bull biased algo, currently long from 780 on the 14th but generally winning trades last on average 5 days and this trade continues to run without enough upside pressure to exit. This to me is a sign that sellers are in stealth mode, selling rallies. This tends to morph into a larger sell wave. I do not look for a major move lover but expect a 150$