Investors took the foot off the pedal as inflow into stock funds eased in May. Net new cash flow into stock funds totaled $562 million in May. That’s down from $4.50 billion in April. May’s diminutive inflow was the smallest monthly inflow since February 2010’s $25 million, according to the Investment Company Institute. International funds continued to take the lion’s share of new money, attracting $5.7 billion in May.