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Why Your Short Delta Choice Isn't About Time Decay At All
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Chapters8 segments · tap to seek
ticker lesson
Breakdown
0:00lesson
Intraday SPX premium evolution
- Premiums evolve intraday with longer time horizons creating wider ranges
- Zero DTE SPX trades have higher premiums at the start of the day
- Investigating how initial credits and premiums change throughout the day
1:37lesson
Delta strike matching and trade timing
- Match rate for 16-30 delta strikes falls off around noon
- Entering trades later in the day reduces strike reliability
- Finding 20 delta strikes is easier in the morning
3:14lesson
Credit decay across deltas
- All deltas follow similar decay curves
- 30 delta takes longer to decay to halfway
- Short delta selection defines profit potential
4:48lesson
Delta impact on premium depreciation
- Larger deltas see more premium depreciation at expiration
- Small delta options decay faster at the start of the cycle
- Tail behavior may be due to strike matching issues
6:34lesson
Call vs put leg decay
- Call and put legs decay at similar rates for small deltas
- Put skew increases with further out-of-the-money
- Zero-day scale shows more similar behavior than longer DTE
8:10lesson
Defined vs undefined risk strategies
- Defined risk strategies are more stable throughout the day
- Wider wings increase sensitivity and potential credit
- Tighter wings offer more leniency in trade timing
9:53lesson
Premium collection and trade timing
- Collecting more premium early doesn't guarantee better P&L
- Defined risk strategies are less sensitive to timing
- Same buying power with different premium collection timing
11:29lesson
Wrap-up and future outlook
- Research dive on SPX premium evolution
- Earning season is approaching with increased volatility
- Thank you for viewing and engaging
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