Investors pumped nearly $7.4 billion into equity mutual funds during the three days ended Feb. 15, estimates

TrimTabs.com

, a firm that tracks fund inflows and outflows.

U.S. funds saw the bulk of inflows, as investors put almost $5.8 billion into them. International funds, estimates TrimTabs, received almost $1.6 billion.

For the three days ended Feb. 15, the

Nasdaq Composite Index

rose 2.5%, the

S&P 500

was little changed and the

Dow

fell 0.5%.