PUMP vs MUC Comparison

ProPetro Holding Corp is a Texas-based oilfield services company. It provides hydraulic fracturing, wireline, and other complementary services to oil and gas companies engaged in the exploration and production of North American oil and natural gas resources. The company focused on the Permian Basin. The operating segments of the company are hydraulic fracturing which generates key revenue, wireline, cementing, and power generation service.

BlackRock MuniHoldings California Quality Fund Inc is a diversified, closed-end management investment company. Its investment objective is to provide shareholders with current income exempt from U.S. federal income taxes and California personal income taxes. The fund mainly invests in municipal obligations exempt from U.S. federal income taxes (except that the interest may be subject to the U.S. federal alternative minimum tax) and California personal income taxes. Under normal market conditions, it invests a majority of its managed assets in investment-grade municipal obligations with remaining maturities of one year or more at the time of investment. It can also invest in below investment-grade securities, or directly in such securities or synthetically through the use of derivatives.