Atlassian shares fall 15% on weak guidance, biggest intraday drop since 2024

The significance here is less the size of the move than what triggered it: a forward-looking guidance cut, not a reported results miss. That shifts the debate from current demand to the durability of the software maker's growth outlook, which is the part of the story that carries weight for how enterprise software names are being valued more broadly. The open question is whether the weak outlook reads as company-specific or as a signal about spending patterns across the sector.