Corning (GLW) peaked early in 2015 and worked steadily lower before losses accelerated into an August low. Prices of GLW retested their August low at the end of September and then the picture changed.
In this first chart of GLW, above, we can see a bullish divergence in August and September between the price action and the momentum study. The On-Balance-Volume (OBV) line is in gear with prices rising nicely.
In this chart of GLW, we can see that the support that developed for GLW around $16 relates to the prior resistance at that level in 2013. The OBV line is positive, and the Moving Average Convergence Divergence oscillator is making a turnaround. We wouldn't bet that GLW starts a straight-up rally, but rather it moves up in fits and starts to retest the $22-$24 area by year's end. A sell stop just above $16 is suggested.