Key Support & Resistance Levels

S/R Level Calculator

Enter recent price data to calculate key levels

What Makes Levels Matter

Support and resistance aren't just lines on a chart—they're psychological battlegrounds where buyers and sellers clash. Our bot targets flips of key daily and weekly support/resistance levels. When a previous support level breaks, it often becomes new resistance, and vice-versa.

• Volume Confirmation: High-volume breaks are more reliable than low-volume fakeouts.
• Multiple Touches: Levels tested 3+ times gain significance and trader attention.
• Round Numbers: SPY 400, 420, 450—psychological levels where algos and retail cluster orders.

Daily vs. Weekly Levels

Different timeframes reveal different opportunities:

• Daily Support/Resistance: Previous day's high/low, pivot points, and intraday swing levels. Best for scalps and same-day reversals.
• Weekly Levels: Prior week's range, monthly opens, quarterly levels. These hold more weight for multi-day swings.
• Gap Fills: SPY loves to fill overnight gaps. Mark gap levels as potential magnets for price action.
• Moving Averages: 20-day, 50-day, and 200-day MAs act as dynamic support/resistance, especially on pullbacks.

Role Reversal Strategy

The bread and butter of S/R trading—when levels flip roles:

• Broken Support → New Resistance: SPY breaks below 420 support? Watch for bounces back to 420 to fail as new resistance.
• Cleared Resistance → New Support: SPY powers through 430 resistance? Look for dips back to 430 to hold as new support.
• Retest Timing: Most role reversals happen within 1-3 trading sessions. After that, the level loses potency.
• Volume Pattern: Strong breakouts should see declining volume on retests—shows conviction in the new direction.

Tools & Setup

Mark these levels on your charts daily:

• Previous Day High/Low: Most watched intraday levels. Breaks often signal continuation.
• Weekly Pivot Points: (H+L+C)/3 from prior week. Classic institutional reference points.
• Gap Levels: Mark any overnight gaps >0.5%. SPY has a 70%+ gap fill rate within 5 sessions.
• Volume Profile: Identify high-volume nodes (HVN) and low-volume nodes (LVN) for stronger S/R zones.
• Options Strikes: Check max pain and high open interest strikes—these act as magnets near expiration.