BlackRock MuniYield Pennsylvania Quality Fund Sees Reduced Short Interest Short interest in BlackRock MuniYield Pennsylvania Quality Fund (NYSE:MPA) dropped 59.5% in February, leaving 4,700 shares shorted. The stock recently traded at $11.40, nearing its 52-week low of $11.31. The fund announced a monthly dividend of $0.066 per share, translating to a 6.95% yield.5