After strong underlying 2018 results, the more subdued outlook for 2019 is an important shift, driven by regulatory pressure on mobile, higher programming costs, one-offs and softening demand

Lightning is continuing to drive market share gains in new build areas, and should provide a 2ppt tailwind to revenue growth in 2019, but enhanced visibility on the economics of rollout suggests that its conservative approach is a wise one

In existing build areas, Virgin Media is facing-off pricing pressure from TalkTalk on high speed, and potentially from BT on even higher ultrafast speeds, with it moderating pricing and launching a market-beating 500Mbps product in Spring 2019 in response

Launched to the world in September 2017, TikTok is the first Chinese app to pose a serious threat to Western social media companies as it attracts hundreds of millions of Generation Z users around the globe

Privately-owned parent company Bytedance earned $7 billion in online advertising revenues in 2018 and is valued at $75 billion, placing it ahead of Uber as the world’s most valuable internet start-up, with an IPO likely this year

Bytedance’s goal of earning half its revenue outside China by 2022 is far from certain. In order to hit the target, TikTok will need to attain super scale with best-in-class revenue per user, an unlikely combination

BT’s Q3 results were a little mixed, with mobile particularly weak, but the company remains on track to meet/exceed its (fairly conservative) guidance for the current year, and hit (modest) consensus expectations for 2019/20

Openreach was very weak at the headline level (-9%), but stripping out an accounting effect and internal revenue the division grew by 2% by our estimates despite significant price cuts, and full fibre roll-out is progressing well

While Openreach should accelerate this year, Consumer will be hit by a price rise holiday and slowing mobile, with investors likely having to wait for existing sports rights contracts to play out to see significant profitability improvement