Here are the top 3 gap ups and downs for the stocks with a market cap above $5 billion after market closed (gaps range from large to small):
1. $International Game Technology(IGT.US)$- up 4.4%

2. $Genmab(GMAB.US)$- up 3.7%

3. $BHP Group Ltd(BHP.US)$- up 3.1%

Gap Downs
1. $Alnylam Pharmaceuticals(ALNY.US)$ - down 4.3%

2. $HP Inc(HPQ.US)$- down 1.6%

3. $Visa(V.US)$- down 0.4%
