The share price of chemicals group Johnson Matthey jumped on Monday morning after the stock was upgraded by JPMorgan Cazenove from 'neutral' to 'overweight'. The US bank hiked its target price for the shares from 2,800p to 4,000p, saying that it sees "major potential from a swathe of new global industrial capex".Beverages group SABMiller was trading in the red on Monday morning after the stock was downgraded by Citigroup from 'buy' to 'neutral' and its target price was cut from 3,550p to 3,200p.Nomura was also weighing on the share price after lowering its target from 2,800p to 2,700p and retaining its 'reduce' rating, saying that consensus estimates are too high ahead of the first-half trading update later this week.Panmure Gordon has retained its 'buy' rating and 488p target price for software solutions group Escher, saying that the business will benefit from the stock-market debut and increased scrutiny of Royal Mail."As the ballyhoo about the Royal Mail initial public offering pricing abates, wise heads will look to Escher as a lead indicator of what 'good looks like' in the postal industry. Escher can only benefit from the increased capital markets scrutiny on this industrial segment."BC