Letter from Lex: rules of thumb

Finance is confusing, but certain general truths hold. Sometimes

Brazilian telecoms: Oi vey

Two big deals in a year is a lot to digest

Techtronic: trade of the tools

Hong Kong manufacturer deserves more attention

Home Depot: head of household

Kids cannot afford to leave home, but that’s OK for Home Depot

Hertz: pain for gain

Car rental group’s problems are never-ending, but optimism endures

Roche / Chugai: uptown problems

An expensive but low risk investment, if it happens

Russia: companies own you

Oil groups cannot stay isolated for long

Carlsberg: red tied

Danish brewer is suffering a serious Russian hangover

European grocers: shop carefully

Lidl and Aldi are crushing the profits and share prices of UK chains

US retail: not sure what is in store

Target, among others, is trying to shift online, but what to do with those stores?

QBE: policy issues

Australian insurer delivers a striking pattern of bad performance