Markets have been impacted by concerns over a conflict with Iran, with stocks, bonds, and gold experiencing losses. The Nasdaq has entered a correction, and the Dow, S&P 500, and Nasdaq have all ended lower, although the extent of the losses varies. However, there is some uncertainty over the cause of the market slump, with one report suggesting it may be related to a different issue, namely tariffs over Greenland, rather than the Iran war.