nostr:npub1e4za4gz2tx6fja3lakdd0x7zdmextmvw6zq0ud7h3zlpeuqmrxmsp4y6ua

no... shorting is the selling of options on share hopping they will fall, and allow you to 'buy them back' cheaper, thereby making a profit.... buy-backs are a firm buying back its share from shareholders (sometimes their own staff who got them as bonuses) rather than invest the money in the business itself