Monday links: poor communications

October 2026The S&P 500 returned -0.87% in October 2026. (on.spdji.com)How major asset classes performed in October 2026. (capitalspectator.com)BondsMore than 80% of global bonds now yield more than 4%. (snippet.finance)Yield spreads on the junkiest junk are blowing out. (ft.com)CompaniesMarvell Technology ($MRVL) to buy Lumentum Holdings ($LITE) in an all-stock transaction worth some $115 billion. (cnbc.com)Elon Musk is looking for an entree into the mobile phone business. (msn.com)AINew AI models are increasingly built by AI. (wsj.com)AI is now drawing blueprints. (stephenjgallagher.substack.com)Why you can't yet trust AI to map your hiking trail. (hcn.org)Stay in touchWork in wealth management? Sign up for our exclusive Talking Wealth newsletter. (talkingwealthpod.com)Don't miss a thing! Sign up for our daily e-mail newsletter. (abnormalreturns.com)EuropeEuropean supermarkets are dealing with cyberattacks. (axios.com)How Serbia's students pulled off an election victory. (ft.com