Ever noticed stocks don’t finish their full earnings move right after reporting? This classic market quirk called Post-Earnings Announcement Drift unfolds over days and weeks, and we crunched data on 27 major tech names to break the pattern down. Some names like Lam Research, Meta and Alibaba have super tight alignment between earnings beats and next-day drift direction — you can usually ride that momentum further over the following 5 days. Others like NVIDIA, TSMC and Qualcomm are total wildcards here: a big beat often turns into "sell the news" fade no matter the number, so don’t chase the immediate jump blindly.
We also mapped out how moves play out after day 1: some names keep running strong, others recover quick from an early dip, a handful give back all their pop right away, and a few just keep bleeding lower. This isn’t guaranteed financial advice, but it’s such a useful edge for anyone trading the earnings calendar right now. Who’s already gotten burnt betting on a big earnings beat that faded the next week?
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