$SEHK 01810 121.15% 2024 Full Year +54.20% 2025 YTD XiaoMi is a perfect illustration of1. Relative Strength - consistently outperformed the general Hang Seng Index, making new ATH after ATHs, and dipped the least when index took a plunge.2. Trend Following - price floating above 21ema (blue MA) all the while, at most a single day of slightly undercut - even if you want to sell into weakness, there is no weakness for you to sell into 3. No extreme overextension sighted - by measurement of ATR multiple from 50sma (green MA) - credits to @jfsrevg for designing this objective method of measuring overextension, generally 8-10x is a good place to start trimming. - on the few visible peaks (purple arrow), the AT