Decline depth
-22.6%
From rolling 252-day high of 247.42 TWD, 108d ago.
Past the 20% Watch threshold.
Watch
6278.TWTAIWAN SURFACE MOUNTING TECHNOL
Technology · Electronic Components · large-cap ($53.8B)
-22.6%
from rolling 252-day high of 247.42 TWD set 2026-05-25 · 108d ago
Current
191.50 TWD
Decline depth
-22.6%
Decline σ
2.8σ
TFC
0/5 bearish
Since it joined the list
6278.TW has been on the Watch since 2026-09-08 — now down -22.6% from its 52-week high.
Structural break signals
6278.TW qualifies for the Watch on decline depth.
Time-frame continuity
0/5 bearish
Latest bar on five time frames, daily to yearly. Bearish = 2-Down or red 3.
Decline sigma
2.8σ
Drop over the last 20 bars in units of daily volatility (3.45%/day).
The structural read
What price action says about 6278.TW.
6278.TW qualifies for the Watch on decline depth — down -22.6% from its rolling 252-day high.
Earnings on file: 2026-08-13. Earnings dates don't affect tiering.
Questions about 6278.TW
What people ask.
Why is 6278.TW on Broken Stocks?
6278.TW qualifies for the Watch on decline depth. It is down -22.6% from its rolling 252-day high of 247.42 TWD, set on 2026-05-25 — 108d ago.
Is 6278.TW a falling knife?
No. The falling-knife label usually implies a steep, severe drop — typically 30% or more from a fresh high. 6278.TW is down -22.6% 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 6278.TW 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 6278.TW trading inside its 52-week range?
At 191.50 TWD, 6278.TW sits 61.4% of the way from its 52-week low (91.40 TWD) to its 52-week high (254.50 TWD). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.
How fast has 6278.TW been declining?
The current 22.6% decline accrued over 108d, which annualizes to roughly -76.4% 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 6278.TW compare to its sector?
There are 455 other Technology tickers on Broken Stocks: 309 Red, 92 Amber, 54 Watch, with 49 showing recovering structural signals. Median sector decline is -40.8% — 6278.TW's decline is shallower than the sector median.
Does 6278.TW'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 (2026-08-13) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.