Why recently repurchase shares for a number of time?

AppleMango
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$CapLand Ascott T (HMN.SG)$ received info from SC that this corporate action is cancelled.
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AppleMango
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$Kingsoft Cloud (KC.US)$ Kingsoft Cloud is one of the earliest players to enter the cloud computing market, with a market cap similar to that of the listed company YOYI. However, its revenue is four times that of the latter. In addition, Alibaba, Tencent, and Huawei Cloud Computing are not listed, making Kingsoft Cloud a rare symbol. With the hype of the ChatGPT concept, this branch of cloud computing will receive market attention and funding.
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$CHINA TOWER-NEW (00788.HK)$ why today increae so much?
$SUNNY OPTICAL (02382.HK)$ what happen the price dropped below 87.5?
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