ER Productions Limited/DigitalVision via Getty Images After falling roughly 80% from its all-time high in 2022 but up since I last covered the ticker, Medical Properties Trust (NYSE:MPW) has seen its largest tenant, Steward Health Care System ("SHCS") file Chapter 11 bankruptcy. The REIT now faces a materially different investment reality over the next half year. MPW is the most shorted US REIT, with 222.3 million shares short, around 36.7% of its weighted average shares outstanding. S&P Global Market place ...