Watch

ADPTAdaptive Biotechnologies Corpor

Healthcare · Biotechnology · mid-cap ($2.3B)
-26.8%
from rolling 252-day high of $20.76 set 2025-11-25 · 184d ago
Current
$15.19
Decline depth
-26.8%
Decline σ
2.4σ
TFC
3/5 bearish
Rolling 252-day high Up day Down day Last 90 trading days · data from Alpaca

Since tracking began

$ADPT has been tracked since 2026-03-01. It was down 22.4% from its 52-week high then — now down -26.8%.

It has clawed back 23.4 percentage points off that level. It bottomed 40.2% 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

ADPT qualifies for the Watch on decline depth.

Decline depth
-26.8%
From rolling 252-day high of $20.76, 184d ago. Past the 20% Watch threshold.
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
2.4σ
Drop from local high over the last 5 bars, expressed in units of the stock's typical daily volatility (3.92% per day).

The structural read

What price action says about ADPT.

ADPT qualifies for the Watch on decline depth — down -26.8% from its rolling 252-day high.

Cross-confirmation: also showing 3/5 bearish time frames.

Earnings on file: 2026-05-05. Tiering is unaffected by earnings dates — listings reflect price structure only.

52-week range

52W low $8.38 55.0% of range 52W high $20.76

Sector context · Healthcare

194 other Healthcare tickers are on Broken Stocks.

89 Red List
47 Amber
58 Watch
-36.0% Median decline

Worst in sector: OPRX (-77.1%). Least-bad: MRNA (-20.1%). See all Healthcare listings →

Questions about ADPT

What people ask.

Why is ADPT on Broken Stocks?

ADPT qualifies for the Watch on decline depth. It is down -26.8% from its rolling 252-day high of $20.76, set on 2025-11-25 — 184d ago.

Is ADPT a falling knife?

No. The falling-knife label usually implies a steep, severe drop — typically 30% or more from a fresh high. ADPT is down -26.8% from its 52-week high, which qualifies for the Watch tier but is shallower than the falling-knife pattern. It's an early-stage decline rather than a sharp breakdown.

Is ADPT 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 ADPT trading inside its 52-week range?

At $15.19, ADPT sits 55.0% of the way from its 52-week low ($8.38) to its 52-week high ($20.76). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.

How fast has ADPT been declining?

The current 26.8% decline accrued over 184d, which annualizes to roughly -53.2% 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 ADPT compare to its sector?

There are 194 other Healthcare tickers on Broken Stocks: 89 Red, 47 Amber, 58 Watch, with 108 showing recovering structural signals. Median sector decline is -36.0% — ADPT's decline is shallower than the sector median.

Does ADPT'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.