What Is a Bear Flag?
The pole is a rapid selloff on heavy volume—gap down, earnings miss, or trend acceleration. The flag is a corrective bounce with higher highs and higher lows between parallel lines sloping up against the downtrend. Shorts cover partially; weak longs buy the bounce. Continuation resumes when support in the flag fails. Bear flags mirror bull flags inverted. They are common in downtrends, failed breakouts, and post-earnings gaps lower. Duration should stay short relative to pole.
Dead cat bounce is colloquial cousin—bear flag is structured version with defined trendlines.
How Do You Identify a Valid Bear Flag?
Pole visually clear with volume expansion on down bars. Flag retraces portion of pole—often thirty to fifty percent—without reclaiming pole start. Parallel upward-sloping lines contain bounce. Volume lighter on flag rally than on pole decline. Flag should form below breakdown level that started pole. Two touches per line minimum. Deep retracement above sixty percent of pole weakens bearish bias—may be reversal not continuation.
Bear flags under falling daily moving averages align with trend; counter-trend flags need caution.
What Confirms the Bearish Breakdown?
Close below lower flag trendline on volume pickup. Gap down through flag low accelerates. Failed rally at upper flag line is early warning. Retest of broken flag support as resistance offers short entry. Intraday breakdown on relative volume helps. Cover if price reclaims upper flag line and holds—invalidation. Shorting exact bottom of flag before break risks squeeze—many wait for break close.
Index weakness on breakdown day improves follow-through for single-name bear flags.
Where Do Stops and Targets Go?
Stop above flag high or upper trendline. Measured-move target subtracts pole length from breakdown point. Partial cover into panic selling legs. Trail stop below lower highs during decline. Multiple bear flags can cascade in crashes—re-measure each pole. Borrow availability matters for overnight shorts. Size small on low-float squeeze candidates even with perfect flag.
If breakdown lands on major support, reduce target—support may produce bounce before next leg down.
When Do Bear Flags Fail?
Breakout above flag—reversal or bull flag in new uptrend. Short squeeze through upper line. Flag morphs into bottoming base if time extends. Low-volume breakdown fails and recovers. Macro bid lifts entire market against flag. News gap up through flag invalidates overnight. Do not add to shorts after invalidation. Confusing bear flag at end of decline with reversal W-bottom forming.
Document short entry as break versus flag high fade—win rates differ by market regime.