Decline depth
-41.7%
From rolling 252-day high of $271.78, 44d ago.
Past the 40% Red List threshold.
Red List
GLWCorning Incorporated
-41.7%
from rolling 252-day high of $271.78 set 2026-06-30 · 44d ago
Current
$158.54
Decline depth
-41.7%
Decline σ
1.3σ
TFC
0/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Since it joined the list
$GLW landed on the list 2026-03-30, down 20.7% from its 52-week high that day — now down -41.7%.
It has clawed back 23.1 percentage points off that level. It bottomed 23.5% below that high along the way.
Decline from the 52-week high as it stood on 2026-03-30 (fixed anchor) → today. Split-adjusted, Alpaca. Observed history, not a forecast.
Structural break signals
GLW qualifies for the Red List on decline depth.
Time-frame continuity
0/5 bearish
Latest bar across daily/weekly/monthly/quarterly/yearly time frames. A bar counts as bearish when it's a 2-Down or a red 3.
Decline sigma
1.3σ
Drop from local high over the last 5 bars, expressed in units of the stock's typical daily volatility (5.52% per day).
The structural read
What price action says about GLW.
GLW qualifies for the Red List on decline depth — down -41.7% from its rolling 252-day high. Past the 40% threshold, the deepest tier in the taxonomy. Depth plus recency: this is the pattern many investors call a falling knife.
Questions about GLW
What people ask.
Why is GLW on Broken Stocks?
GLW qualifies for the Red List on decline depth. It is down -41.7% from its rolling 252-day high of $271.78, set on 2026-06-30 — 44d ago.
Is GLW a falling knife?
By the most common technical definition — a steep, recent breakdown from a fresh high — yes. GLW is down -41.7% from its 52-week high of $271.78, set 44d ago. That combination of depth (past the 30% Amber threshold) and recency (high set inside the last 120 days) is the textbook falling-knife pattern. Whether to try to catch it is a separate question — historically most attempts to bottom-pick continue lower before reversing. Broken Stocks flags the pattern; it does not recommend buying or selling.
Is GLW a buy?
Broken Stocks does not issue buy or sell recommendations. The list is a rules-based technical warning system. It tracks structural decline depth and recency — not company quality, management, fundamentals, or news. Always do your own research and consult a licensed advisor.
Where is GLW trading inside its 52-week range?
At $158.54, GLW sits 28.0% of the way from its 52-week low ($114.50) to its 52-week high ($271.78). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has GLW been declining?
The current 41.7% decline accrued over 44d, which annualizes to roughly -345.9% per year. Annualized pace is a sanity check — a 30% decline in three months is a different signal than a 30% decline over two years.