Decline depth
-66.1%
From rolling 252-day high of $23.29, 140d ago.
Past the 40% Red List threshold.
-66.1%
from rolling 252-day high of $23.29 set 2026-01-08 · 140d ago
Current
$7.89
Decline depth
-66.1%
Decline σ
3.4σ
TFC
4/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Since it joined the list
$ATEC landed on the list 2026-03-02, down 42.2% from its 52-week high that day — now down -66.1%.
That's 17.9 percentage points deeper than the day it joined. It bottomed 70.0% below that high along the way.
Decline from the 52-week high as it stood on 2026-03-02 (fixed anchor) → today. Split-adjusted, Alpaca. Observed history, not a forecast.
Structural break signals
ATEC qualifies for the Red List on decline depth.
Time-frame continuity
4/5 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 4/5 Amber threshold.
Decline sigma
3.4σ
Drop from local high over the last 20 bars, expressed in units of the stock's typical daily volatility (8.65% per day).
The structural read
What price action says about ATEC.
ATEC qualifies for the Red List on decline depth — down -66.1% from its rolling 252-day high. Past the 40% threshold, the deepest tier in the taxonomy.
Cross-confirmation: also showing 4/5 bearish time frames.
Upstream TFC read: weak alignment, current phase daily. Last bar types — daily 2D (green), weekly 2D (red), monthly 2D (red).
Earnings on file: 2026-05-05. Tiering is unaffected by earnings dates — listings reflect price structure only.
52-week range
52W low $6.82
6.5% of range
52W high $23.29
Sector context · Healthcare
194 other Healthcare tickers are on Broken Stocks.
88
Red List
47
Amber
59
Watch
-35.8%
Median decline
Worst in sector: OPRX (-77.1%). Least-bad: MRNA (-20.1%). See all Healthcare listings →
Related — same sector
Closest decliners to ATEC
Red List
RXST
RxSight, Inc.
Red ListRecovering
QURE
uniQure N.V.
Red ListRecovering
ARCT
Arcturus Therapeutics Holdings
Red List
OLMA
Olema Pharmaceuticals, Inc.
Red List
ADMA
ADMA Biologics Inc
Red ListRecovering
HIMS
Hims & Hers Health, Inc.
Questions about ATEC
What people ask.
Why is ATEC on Broken Stocks?
ATEC qualifies for the Red List on decline depth. It is down -66.1% from its rolling 252-day high of $23.29, set on 2026-01-08 — 140d ago.
Is ATEC a falling knife?
Not by the strict technical definition. ATEC is down -66.1% from its 52-week high, but that high was set 140d ago — more than 120 days. A falling knife is usually a recent breakdown from a fresh high, not an established multi-quarter downtrend. ATEC is still on the Red List for decline depth, but the freshness component of a falling knife is missing.
Is ATEC 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 ATEC trading inside its 52-week range?
At $7.89, ATEC sits 6.5% of the way from its 52-week low ($6.82) to its 52-week high ($23.29). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has ATEC been declining?
The current 66.1% decline accrued over 140d, which annualizes to roughly -172.3% 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 ATEC compare to its sector?
There are 194 other Healthcare tickers on Broken Stocks: 88 Red, 47 Amber, 59 Watch, with 108 showing recovering structural signals. Median sector decline is -35.8% — ATEC's decline is deeper than the sector median.
Does ATEC'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 (2026-05-05) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.