If I didn’t get it wrong, the current theme of the stock market is weak U.S. dollar and strong crude oil and commodity. The latter translates to potential higher profit of companies in the Energy and the Basic Material sectors, and thus higher stock prices. Coincidently, the recent market rally was led by these two sectors, though we see mild consolidations of the two sectors and catch-up of other sectors in the past two days. Therefore it is helpful to know how far the U.S. dollar will fall, as any re-bounce of dollar will jeopardize the bulls in the stock market.

Up until yesterday, the technical of U.S. dollar did not look promising to stock bulls. It was forming a falling wedge, a classic reversal pattern according to StockCharts.com (remember that a rising dollar may translate to a falling stock market). Although it breached the lower border (the light blue line) yesterday, it still closed inside the wedge, which makes it a little bit tricky to call for a break down --- financial market are full of overshoots. As of today it closed below the light blue line, a clear break down was formed and the falling wedge was invalidated.
It now appears that the dollar is forming a down trend channel, and there is still some room for the dollar to drop before touching the lower trend channel (the red line), meaning that the stock market may have more room to rise before heading lower. That said, it is prudent to keep in mind that the momentum of falling dollar is trimming down and risk increased for an unexpected snap back. It would be a good idea to keep an eye on the performance of the dollar tonight.