Premium Magnet Levels
Per-strike CE/PE breakeven zones — spot gravitates to the nearest level (Theta + Delta driven)
0 lines plotted
Spot + magnet linesstrike + CE_yestClose (green) · strike − PE_yestClose (red) · strikes (dashed) — lines fixed throughout today's session
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Magnet lines (ATM ±5)
| Price | Type | Source | Strike | Δ from spot |
|---|
How these lines are calculated
- Green lines =
strike + CE_yestClose(strike)— upside breakeven for a call buyer at yesterday's closing premium. - Red lines =
strike − PE_yestClose(strike)— downside breakeven for a put buyer at yesterday's closing premium. - Lines stay FIXED throughout today's session — they don't chase live LTP. This is the correct way to use them as support/resistance: spot interacting with yesterday's breakeven zone is the signal.
- Dashed grey = raw 50-pt strike grid for reference.
- Theta connection: the premium (the offset from strike) shrinks daily as theta decays — lines pull inward toward the strike over time.
- Delta connection: ATM premiums (~0.5 delta) are largest → widest spread around ATM. Far-OTM premiums are tiny → lines collapse onto the strike itself.
- Why spot magnetises here: at a CE breakeven, the call buyer is at zero P&L while the writer is at max profit + intrinsic. Writer-buyer payoff symmetry creates a local equilibrium that spot tends to revisit.