On October 7, Twilio fell 5.09% in regular trading, trading at $285.48/share, with Turnover of $4.94 billion. The decline follows the stock's recent inclusion in the S&P 500 index, as profit-taking emerged after an initial rally triggered by the announcement.

S&P Dow Jones Indices announced on October 2 that Twilio would replace Warner Bros. Discovery in the S&P 500, effective before the open on October 6. Twilio shares rose 2% in after-hours trading on the announcement day. With the event now effective, short-term buying interest has largely been absorbed, leaving the stock vulnerable to pullback after its prior strong run.

Separately, earlier concerns persist over competitive pressure from Meta's AI voice system, which may limit Twilio's share of high-value AI agent interactions, according to a late-September rating downgrade by HSBC.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)