Corning Incorporated (GLW) is an American multinational technology company specializing in glass, ceramics, and related materials and technologies including advanced optics, primarily for industrial and scientific applications. The stock closed the week ending 21st November 2025 at $ 79.46, trading at 34% above its rising 40 week moving average.

Corning has traded as high as $92.57 at the end of October 2025, fully reflecting the outstanding company financial performance. The technical picture however currently shows signs of a culmination in buying panic. The 21 week choppiness index is at 27, which is a warning sign of potential bullish exhaustion. The weekly MACD-V indicator recently hit the extended 269 level, but is now declining. Recent price action overshot the 100% Fibonacci upside projection target of $85.35, based on the entire $25.26 to $55.33 range traded since November 2023.