Corning Inc. (GLW) is having a good day. The stock is surging on Tuesday as part of a strong post-earnings relief rally, and it's got some extra fuel from a Wall Street upgrade. Last week, the stock took a hit after the company's third-quarter sales guidance came in lighter than expected. But investors are apparently deciding that the pullback was a buying opportunity, and they're piling in.

For context, Nasdaq futures are up 1.04% while S&P 500 futures have gained 0.33%, so the broader market is also in a positive mood. But Corning is outpacing the market by a wide margin.

Analysts Reiterate Bullish Outlook

The stock carries a Buy rating with an average price forecast of $155.79 across 32 analysts. Recent analyst actions include Truist Securities upgrading Corning to Buy while lowering its price forecast to $175 on Aug. 3. On July 29, Morgan Stanley maintained an Equal-Weight rating and lowered its price forecast to $165. On the same day, Oppenheimer maintained an Outperform rating while adjusting its price forecast to $200.

Strong Second-Quarter Performance

For the second quarter, adjusted earnings rose 30% year over year to 78 cents per share, topping estimates of 76 cents. Revenue increased 17% to $4.74 billion, beating the consensus estimate of $4.61 billion. For the third quarter, Corning expects revenue between $4.9 billion and $5 billion, aligning with the $4.97 billion consensus. They anticipate adjusted earnings of 85 cents to 89 cents per share for the third quarter. Management also projected a 19% sales compound annual growth rate from the fourth quarter of 2026 through the fourth quarter of 2030.

Critical Technical Levels for Corning Stock

From a trend perspective, Corning is still in a mixed posture: it's trading 0.7% below its 20-day SMA ($159.83), but it remains 17.1% above its 200-day SMA ($135.55), which keeps the longer-term uptrend intact even after the recent pullback. The catch is the stock is still trading 12.7% below its 50-day SMA ($181.80) and 7.1% below its 100-day SMA ($170.85), so the intermediate trend needs more repair work.

The moving-average structure also explains why rebounds may be choppy: the 20-day SMA is below the 50-day SMA (a bearish crossover), even though the 50-day SMA is still above the 200-day SMA (a bullish longer-term backdrop).

• Key Resistance: $177 — a round-number area that also sits near the 50-day EMA ($170.73) and 100-day SMA ($170.85), where rebounds can run into supply
• Key Support: $158.50 — a near-term pivot area sitting right on top of current price action, where buyers have recently shown up

GLW Price Action: Corning shares were up 9.29% at $160.25 during premarket trading on Tuesday, according to market data.