This chart provides nice downside and upside reversal ranges for SPY using the anchored VWAP. I have a bearish bias heading into fed week so these will be my guidelines for shorts: Macro pivot: A hold over 440 Downside targets: 436.12, 431.77, 430.93, 426.69, 424.83, etc.
Under the lows from today's session (Monday, 1/24), we hit a volume shelf through 414.7 -- this can be a capitulation zone or a panic liquidity zone. FEDnesday will be important!