** Gastrointestinal (GI) diseases-focused biopharma Phathom Pharmaceuticals PHAT.O shares rise 2% to $11 premarket
** Barclays upgrades stock to "overweight" from "equal-weight"
** Brokerage raises target price to $18 from $16, which represents 66.8% upside from the stock's last close
** "We think the combination of a strengthened balance sheet, strong guidance and focused commercial strategy suggests the stock at ~$11 is dislocated from the fundamentals" - Barclays
** Brokerage notes that more targeted GI approach appears positioned to drive better adoption
** As of last close, stock has fallen 34.9% YTD
(Reporting by Ragini Mathur in Bengaluru)
((Ragini.Mathur@thomsonreuters.com;))