A upward movement means the price stays strong whereas a downward movement means the price is going slump abruptly.

向上跳空代表价格走势强劲，向下调控代表价格急剧转疲。

youdao

A Colombian who wants someone to approach him often signals with a hand movement in which all the fingers of one hand, cupped, point downward as they move rapidly back and forth.

一个哥伦比亚人想要别人靠近他时，他通常会用一个手势，一只手的所有手指都呈杯状，指向下方，同时快速地前后移动。

youdao

We think given the current supplies and a strong Australian crop, we would probably see some downward [price] movement there.

我们认为，按照现在的供应状况和澳大利亚的良好收成，我们可能会看到粮价今后会有松动的迹象。

youdao

While there had been some hope two weeks ago that a short-term bottom was being established, the continued downward movement of stock prices has further frayed nerves.

FORBES: AAII: Bullish Sentiment Hits The Skids