Tavistock Investments (TAVI:AIM), a top 10 UK financial adviser network, hit break-even in the second half of its financial year according to a trading update issued ahead of full year results.Earnings before interest, tax, depreciation and amortisation (EBITDA), after excluding non-underlying items, is now expected to show a profit for the year to 31 March 2016, chief executive Brian Raven says.A