Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Eligibility for stock rights offering
Yes, there is a delay between when you buy a stock and when you actually take ownership of it.  This is called the settlement period. The settlement period for US equities is T+2 (other markets have different settlement periods), meaning you don't actually become a shareholder of record until 2 business days after you buy.  Conversely, you don't stop being a shareholder of record until 2 business days after you sell. Presumably at some point in the (far) future all public markets will move to same-day changes of ownership, at which point companies will stop making announcements of the form all shareholders of record as of September 22nd and will switch to announcements of the form all shareholders of record as of September 22nd at 13:00 UTC