Business news today is defined by stress at the edges of major markets. In energy, OPEC+ moved to raise output quotas by roughly 188,000 barrels a day just after the UAE’s abrupt exit, framing the step as a show of stability even as analysts say it is mostly symbolic because many members are already struggling to meet existing targets. In aviation, Spirit Airlines’ long slide appears over: after years of losses, repeated restructuring and a failed bid for a $500 million rescue, the budget carrier is ceasing operations, raising fresh doubts about how viable the ultra-low-cost model remains. And in crypto, legal warfare is intensifying as World Liberty Financial, the Trump-linked venture, sues Justin Sun for defamation after Sun previously accused the company of fraud, turning an already bitter dispute into a parallel fight over public claims and reputational damage.