https://www.reuters.com/article/us-afterpay-m-a-square/square-to-buy-australias-afterpay-in-29-billion-all-stock-deal-idUSKBN2F21IP >(Reuters) -U.S. fintech company Square Inc said on Monday it had agreed to purchase Australian buy now/pay later giant Afterpay Ltd in an all-stock deal worth about $29 billion.