Chart 1: $Assured Guaranty (AGO.US)$
Chart 2: $Primerica (PRI.US)$
Chart 3: $Navient (NAVI.US)$

Here are my answers:
Chart1: $Assured Guaranty (AGO.US)$
Chart 2: $Primerica (PRI.US)$
Chart 3: $Navient (NAVI.US)$

Here are the top gap ups and downs for the stocks with a market cap above $5 billion after the previous market closed (gaps range from large to small):
Gap Ups
1. $Prudential (PUK.US)$ - up 3.18%
2. $Science Applications International (SAIC.US)$ - up 1.29%
3. $ICL Group (ICL.US)$ - up 1.01%
4. $Novartis AG (NVS.US)$ - up 0.56%
5. $MGM Resorts International (MGM.US)$ - up 0.4%
Gap Downs
1. $VF Corp (VFC.US)$ - down 3.34%
2. $Advanced Drainage (WMS.US)$ - down 0....

Here are the top gap ups and downs for the stocks with a market cap above $5 billion after the previous market closed (gaps range from large to small):
Gap Ups
1. $Ross Stores (ROST.US)$ - up 8.83%
2. $Apellis Pharmaceuticals (APLS.US)$ - up 8.61%
3. $Foot Locker (FL.US)$ - up 4.88%
4. $Burlington Stores (BURL.US)$ - up 3.59%
5. $Primerica (PRI.US)$ - up 2.14%
6. $Dick's Sporting Goods (DKS.US)$ - up 2.02%
7. $Columbia Sportswear (COLM.US)$...

Upgrades
• $Cisco (CSCO.US)$ : KGI Securities Upgrades to Outperform from Neutral - PT $56
• $Public Storage (PSA.US)$ : BMO Capital Upgrades to Outperform from Market Perform - PT $370 (from $410)
• $Reinsurance Group of America (RGA.US)$ : Morgan Stanley Upgrades to Equalweight from Underweight - PT $132 (from $126)
• $Take-Two Interactive Software (TTWO.US)$ : CFRA Upgrades to Buy from Hold - PT $171 (from $188)
Downgrades
• $Bank of New York Mellon (BK.US)$ : Deutsch...