Decline depth
-34.3%
From rolling 252-day high of $50.79, 150d ago.
Past the 30% Amber threshold.
Amber List
COLLCollegium Pharmaceutical, Inc.
Healthcare · Drug Manufacturers - Specialty & Generic · small-cap ($1.0B)
-34.3%
from rolling 252-day high of $50.79 set 2025-12-29 · 150d ago
Current
$33.37
Decline depth
-34.3%
Decline σ
6.7σ
TFC
3/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Since it joined the list
$COLL landed on the list 2026-03-03, down 21.3% from its 52-week high that day — now down -34.3%.
That's 10.5 percentage points deeper than the day it joined. It bottomed 40.0% below that high along the way.
Decline from the 52-week high as it stood on 2026-03-03 (fixed anchor) → today. Split-adjusted, Alpaca. Observed history, not a forecast.
Structural break signals
COLL qualifies for the Amber List on decline depth.
Time-frame continuity
3/5 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.
Past the 3/5 Watch threshold.
Decline sigma
6.7σ
Drop from local high over the last 20 bars, expressed in units of the stock's typical daily volatility (2.74% per day).
Past the ≥6σ Amber threshold.
The structural read
What price action says about COLL.
COLL qualifies for the Amber List on decline depth — down -34.3% from its rolling 252-day high.
Cross-confirmation: also showing 3/5 bearish time frames.
Cross-confirmation: decline sigma also reads 6.7σ over 20 bars.
Upstream TFC read: bearish alignment, current phase daily. Last bar types — daily 2D (red), weekly 3 (red), monthly 2U (red).
Earnings on file: 2026-02-26. Tiering is unaffected by earnings dates — listings reflect price structure only.
52-week range
52W low $23.23
36.8% of range
52W high $50.79
Sector context · Healthcare
194 other Healthcare tickers are on Broken Stocks.
89
Red List
46
Amber
59
Watch
-36.0%
Median decline
Worst in sector: OPRX (-77.1%). Least-bad: MRNA (-20.1%). See all Healthcare listings →
Related — same sector
Closest decliners to COLL
Amber List
IVA
Inventiva S.A. - American Depos
Red List
MMSI
Merit Medical Systems, Inc.
Amber ListRecovering
EBS
Emergent BioSolutions Inc.
Amber ListRecovering
AGIO
Agios Pharmaceuticals, Inc.
Amber ListRecovering
MLYS
Mineralys Therapeutics, Inc.
Amber List
ATRC
AtriCure, Inc.
Questions about COLL
What people ask.
Why is COLL on Broken Stocks?
COLL qualifies for the Amber List on decline depth. It is down -34.3% from its rolling 252-day high of $50.79, set on 2025-12-29 — 150d ago.
Is COLL a falling knife?
Not by the strict technical definition. COLL is down -34.3% from its 52-week high, but that high was set 150d ago — more than 120 days. A falling knife is usually a recent breakdown from a fresh high, not an established multi-quarter downtrend. COLL is still on the Amber List for decline depth, but the freshness component of a falling knife is missing.
Is COLL 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 COLL trading inside its 52-week range?
At $33.37, COLL sits 36.8% of the way from its 52-week low ($23.23) to its 52-week high ($50.79). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has COLL been declining?
The current 34.3% decline accrued over 150d, which annualizes to roughly -83.5% 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 COLL compare to its sector?
There are 194 other Healthcare tickers on Broken Stocks: 89 Red, 46 Amber, 59 Watch, with 108 showing recovering structural signals. Median sector decline is -36.0% — COLL's decline is shallower than the sector median.
Does COLL's earnings date affect its tier?
No. Tiering is decided purely by decline depth and recency of the rolling-high date. The earnings date on file (2026-02-26) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.