Decline depth
—
Not currently in the rolling-252-day ≥20% decline universe.
Red List
BABoeing Company
10.4σ
decline sigma — volatility-normalized move (typical daily 1.19%)
Current
$204.80
Decline depth
—
Decline σ
10.4σ
TFC
1/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Since it joined the list
$BA landed on the list 2026-03-19, down 20.9% from its 52-week high that day — now $204.80.
It has clawed back 3.6 percentage points off that level. It bottomed 25.6% below that high along the way.
From the 52-week high as of 2026-03-19 to today. Split-adjusted. Observed, not a forecast.
Structural break signals
BA qualifies for the Red List on decline sigma.
Time-frame continuity
1/5 bearish
Latest bar on five time frames, daily to yearly. Bearish = 2-Down or red 3.
Decline sigma
10.4σ
Drop over the last 20 bars in units of daily volatility (1.19%/day).
Past the ≥8σ Red List threshold — an extreme move.
The structural read
What price action says about BA.
BA qualifies for the Red List on decline sigma — the recent drop measures 10.4σ over a 20-bar window. Sigma scales the move by the stock's own typical daily volatility, so a small percentage drop in a normally-quiet name can land here when the bigger players miss it on a pure-percent threshold.
Upstream TFC read: bearish alignment, current phase daily. Last bar types — daily 2D (red), weekly 3 (red), monthly 2D (red).
Questions about BA
What people ask.
Why is BA on Broken Stocks?
BA qualifies for the Red List on decline sigma. The recent drop measures 10.4σ over a 20-bar window — large enough that even a small percentage drop is structurally significant given the stock's typical day-to-day volatility (1.19%).
Is BA a falling knife?
BA is on Broken Stocks for time-frame continuity or decline-sigma reasons rather than headline depth, so the falling-knife label doesn't cleanly apply. The phrase usually requires a meaningful percentage drop from a fresh high. See the structural break signals above for the axis that actually triggered the listing.
Is BA 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 BA trading inside its 52-week range?
At $204.80, BA sits 2.4% of the way from its 52-week low ($203.90) to its 52-week high ($241.09). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.