Keep a "weather eye" tomorrow (Friday) as the Fed releases its latest inflation number. Inflation in 2017 so far has been running at roughly 1.5%, significantly below the Fed's 2% target. Too low an inflation number annoys the Fed and mitigates against an interest rate increase or Fed balance sheet unwinding.
I'm not suggesting tomorrow's inflation number will alone be determinative. But it will be influential. If inflation remains subdued the Fed will be faced, should they decide to increase interest rates or unwind, with doing so more in an anticipatory manner and less in reaction to actual events.
Personally I'm surprised the lofty stock market has not by now contributed to inflation through action of the "wealth effect". But so far such has not come to pass. The future? I have lots of stupid guesses but really no clue.