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Test H3 · 2016–2023

Saturn, Jupiter or Rahu changes sign Beat 90% of shifted calendars

Claim: Steady stocks get jumpier.

How it was tested

Window: Five trading days either side of the day Saturn, Jupiter or Rahu enters a new sign. Stocks: the Steady third of liquid NSE stocks (lowest one-year volatility), which astrology assigns to the slow planets; groups are re-formed each month using data up to two days earlier.

Measure: the group's average daily volatility (log of the squared daily return) on window days minus all other days. Control: the same measure on 2,000 placebo calendars, the real sky shifted by random amounts, which keeps each window's length and rhythm. The claim passes only if the real sky beats at least 95% of them and still clears the bar after the Holm correction for all tests.

Result

Development data 2016–2023; the 2024–26 data stays sealed until it is opened once. Effects are averages over the period, before any trading costs unless stated. How we test · all results