** Shares of Australia's PainChek PCK.AX rise as much as 46.7% to A$0.22, their biggest intraday pct gain since April 30, 2019
** Stock hits its highest level since February 18
** The medical devices maker enters into an agreement with U.S.-based healthcare real estate operator, Sabra Health Care REIT SBRA.O
** Says SBRA to fund as many as 20,000 beds across company's senior housing facilities at $55-$75 per bed per annum
** Despite moves, stock down 25.9% YTD
(Reporting by Aamir Sheik Khalid in Bengaluru)
((Aamir.SheikKhalid@thomsonreuters.com))