日本至7月18日当周买进外国股票 2965亿日元，前值-7679亿日元。

Core Insights - Japan's foreign stock purchases reached 296.5 billion yen for the week ending July 18, a significant increase from the previous value of -767.9 billion yen [1] Group 1 - The current foreign stock investment indicates a strong recovery in investor sentiment compared to the previous week [1] - The shift from negative to positive investment suggests a potential trend reversal in Japan's foreign equity market [1]