An in-line update from the Producer Price Index gave the bulls an early boost, but the bulk of today’s selective rally stemmed from the belief that Congress could present a unified tax bill as soon as this week. Differing priorities between Senate Republicans and their House of Representative counterparts figures to challenge the party as it vies to implement this key economic policy by the end of the year. With 2018’s midterm elections likely to be highly contentious, the GOP is hoping it can succeed in reforming the corporate tax code before hitting the campaign trail in earnest next year.

Meanwhile, the Federal Reserve’s final meeting commenced today. It is widely expected that the central bank will increase interest rates by 25 basis points when the two-day summit concludes. And though the market has priced this augmentation into the current levels, the market could see some movement in the coming days should statement from the Fed’s officials cause any waves. This figures to be the final monetary policy meeting with Chair Janet Yellen at the helm, so investors are looking for indication from successor Jerome Powell or regional heads on the bank’s future strategy.

Meanwhile, U.S. crude oil slipped nearly 1.5%, mostly reversing yesterday’s run up in per-barrel value. Optimism had stemmed from the disruption in activity from the Forties pipelines in the North Sea, which was shut down after a leak was found. This ought to help alleviate international inventory levels as investors look forward to what is likely to be resurgent global demand in 2018. Still, with the year coming to a close, plenty seem to be collecting profits given the commodity’s rally over the past several months.

As the closing bell neared, the S&P 500 and Dow each slipped from their all-time intraday highs set around noon, but still remained well above their breakeven lines. Tomorrow’s decision by the Fed, as well as a new Consumer Price Index reading, will complement tax reform as the main factors likely to influence trading. Stay tuned.

– Robert Harrington

At the time of this article’s writing, the author did not have any positions in the companies mentioned.