Open Harmonics · Experiments

Not supported · Filters · 2026-10-01; timeframe gap fill 2026-10-11

Does the Fib-zone idea work on mega caps only?

What this means

Restricted to stocks worth $100B or more, in-zone setups won less often on daily (38% vs 49%) and slightly more often on 4h and 1h. The samples are small (42 daily setups), the 1h gain's range includes zero, and market cap was estimated with today's share counts. The numbers should not be relied on; they give no support to the Fib-zone idea for mega caps.

The explanation is our best reading; the data shows the result but not the cause directly.

By timeframe

TimeframeVerdictnResult
15-minuteNot supported3,226in-zone win 42.6% (n=465) vs 42.4%; +0.021R (-0.099, +0.151), q=0.84
gap fill G15, 2026-10-11 (price data)
1-hourInconclusive21652.3% vs 45.7% win, +0.18R (-0.01, +0.37)
4-hourNot supported6943.5% vs 41.2% win
DailyNot supported4238.1% vs 49.1% win
Hypothesis
For stocks >= $100B market cap at the signal date, in-zone setups do better.
Method
Same as filter-fibzone, restricted by signal-date market cap (close x current shares).
Result
24m windows: daily in-zone win 38.1% (n=42) vs 49.1%; 4h 43.5% (n=69) vs 41.2%; 1h 52.3% (n=216) vs 45.7%, +0.18R (-0.01, +0.37). 15m gap fill: mega caps in zone 42.6% win (n = 465) vs 42.4% out, +0.021R (-0.099, +0.151).
How much to trust it
Low: small samples; market cap approximated with current share counts
Did it change the live rule?
No.

Scripts and data for this study will be linked here when the research code is published on GitHub.

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Education and research only. Not financial advice. Backtests use today's index members (survivorship bias).