It’s not the Republican tax cuts. Those are yesterday’s news. It’s not the trade war cease fire. That’s been done before. It’s the world’s biggest central banks going to zero, or are being challenged by Wall Street to give 0% interest rates a whirl!
The market is rising because there is no other place to put investment capital. Conservative investments are money losers. You have to buy Chinese bonds or something like that. The world’s central banks are not only helping to prop up equity markets, but they are forcing everyone into it.