noun
accumulated stock investment plan
A financial system for gradually accumulating stocks through regular investments.
株式累積投資制度を利用して、毎月少しずつ株を買い増している。
I use the accumulated stock investment plan to buy a little more stock each month.
Compound of 株式 (stock), 累積 (accumulation), 投資 (investment), and 制度 (system).