Why is GLW down today?
GLW is down 1.0% — inside the β-adjusted expected range. This is normal market-driven volatility.
Intraday Relative Performance
Historical Context · 252 trading days
GLW moves this much or more on 52 of the last 252 trading days — it's within its usual noise.
Expected vs Actual
GLW's move lines up with what the market alone predicts.
Key Drivers
No high-relevance news found in the latest tick.
Editorial Analysis
"GLW's move today falls within the normal range given its sector's move — no anomaly detected."
GLW moved down 2.06% today. Its sector ETF (XLK) moved +2.09%, and GLW's beta to that sector is 1.55, implying an expected move of about 3.25%. The realized move sits within that expected band, so today's volatility shows no sign of being driven by company-specific news.
Days like this are the typical case for GLW: most of the variance is sector-driven, not idiosyncratic. We classify a move as company-specific only when the beta-adjusted residual exceeds 1.5 standard deviations — today's residual is below that line. The takeaway is structural: GLW is moving with its peers, not against them.
Related Sector Movers
No related movers available for this ticker yet.