Closing Note
updated 2026-07-24 14:52 UTC

BIIB — oversold signal, 20 May

short term
RSI(2)8.7
RSI(14)48.0
Close $ · flag day187.80
Off 20-day high−8.8%
Avg volume1.2M

What followed

DateClose $ 5-day avg.vs flag close
20 May187.80190.92+0.0%
21 May189.47190.54+0.9%
22 May193.76190.70+3.2%
26 May193.08190.93+2.8%
27 May196.97192.22+4.9%
28 May196.39193.93+4.6%
29 May196.00195.24+4.4%
01 Jun192.23194.93+2.4%
02 Jun188.83194.08+0.5%
03 Jun195.96193.88+4.3%
04 Jun196.45193.89+4.6%

The rule flags the close; the strategy's exit is the first close above the 5-day average, or six trading days, whichever comes first. Shown for research — not every flag is traded.

Research chart

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From the oversold list of 20 May. The freshest lists go out in the daily alert at 21:30 CET.