Merger arbitrage-themed exchange traded funds gained Tuesday after Nielsen Holdings PLC (NYSE: NLSN) reached a preliminary buyout agreement by a consortium of private-equity firms. On Tuesday, the IQ Merger Arbitrage ETF (MNA) rose 1.3%, ProShares Merger ETF (MRGR) gained 0.3%, and First Trust Vivaldi Merger Arbitrage ETF (MARB) was up 0.2%. Meanwhile, Nielsen Holdings PLC [...] The post M&A Themed ETFs Rise on Buyout Deal for Nielsen Holdings appeared first on ETF Trends .