Since the bullrun starting in summer 2015 StochRSI gave good entry points. To catch the dip go long whenever StochRSI goes below 30. However, it doesn't catch all the dips and it gives no sell signal.
We're currently nearing such a dip below 30, which could indicate a buying opportunity.
We're now in the preferred buy zone.
StochRSI is now heavily oversold, since heading lower the last weeks, which still suggests accumulation. An indicator's flip to the upside, probably the next week or the week after next, could indicate a revert from the downtrend to sideways consolidation or possibly to the upside.
It looks like StochRSI has bottomed. Price corrected lower than expected. This correction was about -70% so far, which is way more than the previous corrections, where StochRSI dipped below 20. It is turning up again, which could indicate price reversal back to the upside and probably challenging new ATHs in a couple of weeks.