Decline depth
-47.1%
From rolling 252-day high of $440.00, 135d ago.
Past the 40% Red List threshold.
-47.1%
from rolling 252-day high of $440.00 set 2026-06-03 · 135d ago
Current
$232.90
Decline depth
-47.1%
Decline σ
6.2σ
TFC
0/5 bearish
Where it stands
On the Red List.
Down 47.1% from its rolling 252-day high, 135 days after the high.
Snapshot . Price structure, not a judgment about the business.
What changed
Since the previous observation.
Amber List → Red List.
Comparing with . This compares classification, not price returns.
See the recorded timeline →Why it is flagged
COHR qualifies for the Red List on decline depth.
Down 47.1% from its rolling 252-day high, 135 days after the high. The most severe triggered rule determines the tier.
Inspect the three classification measures
Time-frame continuity
0/5 bearish
Latest bar on five time frames, daily to yearly. Bearish = 2-Down or red 3.
Decline sigma
6.2σ
Drop over the last 10 bars in units of daily volatility (5.19%/day).
Past the ≥6σ Amber threshold.
Price history
The price path behind the snapshot.
Daily prices with the rolling-high reference. When a recorded classification event falls on a displayed trading date, it is marked on the chart.
Rolling 252-day high
Gold dots: recorded classification events (see timeline)
Up day
Down day
90 daily bars from Alpaca · through
The recorded history
A timeline of observations.
First observed 2026-07-03. These are scan observations, not exact transition times or the start of a decline. Missing scan dates are not filled in.
- Amber List → Red List
- Red List → Amber List
- Unmatched; coverage or recovery unconfirmed → Red List
- Red List → Unmatched; coverage or recovery unconfirmed
- Watch → Red List
- Unmatched; coverage or recovery unconfirmed → Watch
- Watch → Unmatched; coverage or recovery unconfirmed
- Unmatched; coverage or recovery unconfirmed → Watch
- Watch → Unmatched; coverage or recovery unconfirmed
- Red List → Watch
- Amber List → Red List
- Red List → Amber List
Showing the latest 12 of 16 recorded events.
Absence from a captured list does not establish recovery. Historical tiers reflect the rules and data recorded at that time.
Technical interpretation and signal details
The structural read
What price action says about COHR.
COHR qualifies for the Red List on decline depth — down -47.1% from its rolling 252-day high. Past the 40% threshold, the deepest tier in the taxonomy.
Cross-confirmation: decline sigma also reads 6.2σ over 10 bars.
Earnings on file: 2026-08-12. Earnings dates don't affect tiering.
Questions about COHR
What people ask.
Why is COHR on Broken Stocks?
COHR qualifies for the Red List on decline depth. It is down -47.1% from its rolling 252-day high of $440.00, set on 2026-06-03 — 135d ago.
Is COHR a falling knife?
Not by the strict technical definition. COHR is down -47.1% from its 52-week high, but that high was set 135d ago — more than 120 days. A falling knife is usually a recent breakdown from a fresh high, not an established multi-quarter downtrend. COHR is still on the Red List for decline depth, but the freshness component of a falling knife is missing.
Is COHR 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 COHR trading inside its 52-week range?
At $232.90, COHR sits 41.8% of the way from its 52-week low ($84.35) to its 52-week high ($440.00). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has COHR been declining?
The current 47.1% decline accrued over 135d, which annualizes to roughly -127.3% 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.
How does COHR compare to its sector?
There are 598 other Technology tickers on Broken Stocks: 406 Red, 129 Amber, 63 Watch, with 236 showing recovering structural signals. Median sector decline is -42.0% — COHR's decline is deeper than the sector median.
Does COHR's earnings date affect its tier?
No. Tiering uses decline depth and recency, bearish time-frame structure, and decline sigma. The earnings date on file (2026-08-12) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.