Decline depth
-24.2%
From rolling 252-day high of $999.00, 86d ago.
Past the 20% Watch threshold.
-24.2%
from rolling 252-day high of $999.00 set 2026-03-03 · 86d ago
Current
$756.98
Decline depth
-24.2%
Decline σ
4.0σ
TFC
2/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Since it joined the list
$MCK landed on the list 2026-05-06, down 25.6% from its 52-week high that day — now down -24.2%.
It has clawed back 5.4 percentage points off that level. It bottomed 27.4% below that high along the way.
Decline from the 52-week high as it stood on 2026-05-06 (fixed anchor) → today. Split-adjusted, Alpaca. Observed history, not a forecast.
Structural break signals
MCK qualifies for the Watch on decline depth.
Time-frame continuity
2/5 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
4.0σ
Drop from local high over the last 20 bars, expressed in units of the stock's typical daily volatility (2.06% per day).
Past the ≥4σ Watch threshold.
The structural read
What price action says about MCK.
MCK qualifies for the Watch on decline depth — down -24.2% from its rolling 252-day high.
Cross-confirmation: decline sigma also reads 4.0σ over 20 bars.
Upstream TFC read: weak alignment, current phase daily. Last bar types — daily 2U (green), weekly 1 (red), monthly 2D (red).
Earnings on file: 2026-05-07. Tiering is unaffected by earnings dates — listings reflect price structure only.
52-week range
52W low $637.00
33.1% of range
52W high $999.00
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 →
Related — same sector
Closest decliners to MCK
Watch
REGN
Regeneron Pharmaceuticals, Inc.
WatchRecovering
TMO
Thermo Fisher Scientific Inc
Amber ListRecovering
RYTM
Rhythm Pharmaceuticals, Inc.
Amber List
KOD
Kodiak Sciences Inc
Red ListRecovering
CHE
Chemed Corp
Watch
BKD
Brookdale Senior Living Inc.
Questions about MCK
What people ask.
Why is MCK on Broken Stocks?
MCK qualifies for the Watch on decline depth. It is down -24.2% from its rolling 252-day high of $999.00, set on 2026-03-03 — 86d ago.
Is MCK a falling knife?
No. The falling-knife label usually implies a steep, severe drop — typically 30% or more from a fresh high. MCK is down -24.2% 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 MCK 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 MCK trading inside its 52-week range?
At $756.98, MCK sits 33.1% of the way from its 52-week low ($637.00) to its 52-week high ($999.00). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has MCK been declining?
The current 24.2% decline accrued over 86d, which annualizes to roughly -102.7% 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 MCK 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% — MCK's decline is shallower than the sector median.
Does MCK'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 (2026-05-07) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.