Don't fight the Fed. That adage exists for a reason. During the last two crises the Federal Reserve stepped up in a big way to rescue the market. So, having an indicator to assess their actions is critical to understanding the behavior of the market. Fortunately, the assets held by the Federal Reserve is available to watch:
While the level of assets is interesting, the rate of change is much more informative:
Please note that charts need a moment to load as there is a significant amount of data processing.