Mall-based specialty retailer of music-licensed and music-influenced apparel, Hot Topic Inc, on Thursday posted a 30 per cent jump in June sales to $34.6 million compared to the year-ago period. The California-based operator of almost 400 stores said same-stores sales climbed 2.1 per cent last month, while total sales for the first 22 weeks of the current fiscal year are up 28 per cent to $139.5m.