Bond market rallies could complement equity gains if inflation data keeps trending lower, according to leading market models. The app lets you invest your spare change through its Round-Up feature. After linking a debit card to the app, your purchases are rounded up to the nearest dollar and the difference is invested into your portfolio. Existing Zeta customers are welcome to join Acorns and enjoy a full suite of financial wellness benefits. Financial terms of the transaction were not disclosed. For more information on how Acorns meets customers at every stage of life, visit www.acorns.com . Investor sentiment leans cautiously optimistic.