Let's check out the Yahoo Finance charts of the day.
Twitter (TWTR): Shares are down in early trade, at around 5.3%. According to a Washington Post report, Twitter suspended more than 70 million accounts in May and June to reduce the flow of misinformation. The post also said the pace of suspensions has continued this month.
Boeing (BA): Shares up here around 1.1%. The aircraft maker made a deal to sell four Poseidon maritime patrol jets to the New Zealand government for $1.6 billion.
Altice (ATUS): Shares up here, at around 2.6%. Guggenheim Securities upgraded the cable operator to "buy" from "neutral" citing a number of initiatives that it feels will improve results as well as an attractive valuation.
For more on today's big stock movers check out the Final Round, live at 3:55 p.m. ET, right here on Yahoo Finance.