Where is bottom?

Or how I learn to love stop loss

Hi all.
I'm long on TGR and will accumulate next 12 months.
However keen to hear from others about where the bottom for TGR may be.
Further 20% drop will lead to the levels of 5 year low (below 3.30). It will lower PE to below 10 and div yield to over 5%.

I'm not trying to downramp but simply pointing out that TGR will be very attractive assuming no change to their revenue.