Stocks making the biggest moves midday: Atlassian, Apple, Roblox, Reddit, Twilio & more

Here are the stocks making headlines in midday trading. Atlassian — Shares of the workplace collaboration software company soared 23% after Atlassian unveiled rosy guidance for the full year. The company sees revenue growth of about 24% from the prior year versus its earlier call for growth of 22%. The outlook also surpassed the FactSet consensus estimate of a 22.2% increase. Top- and bottom-line results in the third quarter also beat the Street. …