PFizer - Vaccine is effective ?

Many countries buying vaccine from Pfizer ... Logically, Pfizer stock should be VERY BULLISH..

BUT the chart shows..
1) 0 BANKER VOLUME
2) MCDX Deadly Cross on 18 DEC.
3) FIFT -ve
4) Price below EMA50
5) Insiders/Investors have been reducing their positions.

In short, Not bullish at all... WHY ?