Decline depth
—
Not currently in the rolling-252-day ≥20% decline universe.
Amber List
FULCFulcrum Therapeutics, Inc.
1.5σ
decline sigma — volatility-normalized move (typical daily 2.15%)
Current
$3.85
Decline depth
—
Decline σ
1.5σ
TFC
4/5 bearish
Rolling 252-day high
Up day
Down day
Last 90 trading days · data from Alpaca
Since tracking began
$FULC has been tracked since 2026-03-01. It was down 50.4% from its 52-week high then — now $3.85.
That's 25.3 percentage points deeper than the day it joined. It bottomed 80.1% 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
FULC qualifies for the Amber List on decline sigma.
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
1.5σ
Drop from local high over the last 5 bars, expressed in units of the stock's typical daily volatility (2.15% per day).
The structural read
What price action says about FULC.
FULC qualifies for the Amber List on decline sigma — the recent drop measures 1.5σ over a 5-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.
Cross-confirmation: also showing 4/5 bearish time frames.
Questions about FULC
What people ask.
Why is FULC on Broken Stocks?
FULC qualifies for the Amber List on decline sigma. The recent drop measures 1.5σ over a 5-bar window — large enough that even a small percentage drop is structurally significant given the stock's typical day-to-day volatility (2.15%).
Is FULC a falling knife?
FULC 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 FULC 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 FULC trading inside its 52-week range?
At $3.85, FULC sits 24.1% of the way from its 52-week low ($2.83) to its 52-week high ($7.07). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.