Foreign investors were solid buyers of long-term U.S. securities in February, at $35.9 billion, while U.S. investors were sellers of foreign long-term securities at $17.5 billion. Together, they make for a net inflow of $53.4 billion in the month. Foreign buying was concentrated in equities for a second straight month and also in corporate bonds which have been in heavy foreign demand. But demand for U.S. Treasuries was once again weak though both China, at $1.12 trillion, and Japan, at $1.06 trillion, increased their Treasury holdings in the month. February's data are a reminder that though the strong dollar hurts exports, it's a plus for investment inflow.