- US stock futures reversed their losses in response to strong earnings, with at&t Inc.'s results exceeding expectations demonstrating resistance to sluggish consumer spending.

- S&P 500 contracts and NASDAQ 100 futures both increased slightly in premarket trade as AT&T increased. Tesla, nevertheless, fell after the electric vehicle manufacturer reported sales that fell short of forecasts. In Europe's Stoxx 600 index, telecommunications companies were the largest laggards.

- Investors are keeping a tight eye on developments in the UK, where Liz Truss's unstable premiership appeared on the verge of collapsing. According to a statement from her office, Truss will meet with the person in charge of voting on conservative party leadership. The pound's earlier weakness was reversed.

- With the yen falling below the carefully watched 150-to-1 dollar level and reaching a 32-year low, investors are on high alert for fresh support measures. The action came after US Treasury rates shot up to multi-year highs, widening the gap with Japanese equivalents.