As mentioned earlier this month, ING’s Canadian division was put up for sale http://www.theglobeandmail.com/report-on-business/international-business/european-business/ing-eyes-sale-of-canadian-uk-online-banks/article4457217/ . 

There was some speculation that one of the Big Five Canadian banks would acquire ING's operations. This has now come to pass. 

It looks like the winning bid is from the Bank of Nova Scotia. http://www.theglobeandmail.com/globe-investor/bank-of-nova-scotia-snares-ing-for-31-billion/article4508240/ 

However a better suitor in my opinion, would have been Manulife Bank. Manulife Bank has a premium daily interest account that operates very similarly to ING's business model so an acquisition by Manulife could have been a natural fit. 

Note: The Big Five refers to Canada's five largest banks: Royal Bank, TD-Canada Trust, Bank of Nova Scotia, CIBC and Bank of Montreal.