Bank of Nova Scotia ( NYSE:BNS )( TSE:BNS ) is one of the big six Canadian banks and has significant international exposure. Despite poor macro conditions in Canada, I'm neutral on Bank of Nova Scotia because of its exposure to Latin America and potential to improve its profitability in the long run. With high balance sheet leverage and stretched debt-service ratios (DSR) in Canada, I think there are risks and opportunities for BNS. BNS stock has gained 1.8% in the past year.