Wall Street Zen lowered its rating for Monolithic Power Systems (MPWR) from buy to hold on September 19, 2026. A Seeking Alpha analyst separately downgraded the semiconductor firm to a sell rating. The analyst cited concerns that a contracting free cash flow margin may not justify the company's premium valuation.
These downgrades follow recent earnings results where the company beat consensus estimates.
Institutional investor Nykredit A S disclosed the acquisition of 20,935 shares of MPWR during the second quarter. This stake was valued at nearly $29 million.