The Bradley Barometer (also known as Bradley Siderograph or simply Bradley Index) is a financial astrology indicator created by Donald Albert Bradley (1925-1974) in the 1940s. Bradley developed a barometer that combines planetary transits. By assigning positive values to favorable transits and negative values to unfavorable ones, he created a weighted net sum oscillator graph.
The equation for the Bradley Barometer indicator is calculated as follows:
- Long Term Aspects: 10 of the 36 aspects are classified as Long Term. These aspects generally involve the slower-moving outer planets (e.g., Jupiter, Saturn), and Bradley believed they should carry greater weight.
- Middle Term Aspects: 26 of the 36 aspects are classified as Middle Term. These aspects include the Sun and the faster-moving planets, from Mercury to Mars.
- Short Term Aspects: None of the 36 aspects are classified as Short Term. Bradley considered aspects involving the Moon to be Short Term, affecting only a few hours. Therefore, Short Term aspects are not incorporated in the Bradley Barometer, as they are not expected to influence medium- to long-term market behavior.
Regarding this multiplier, Bradley stated that the Long Term and declination factors "may be given considerably more weight by multiplying them by 3, 4, or 5 times, depending on experimentation." Therefore, in computing the Bradley Barometer, one adds together (1) the sum of all the planetary aspects of the Middle Terms, and (2) the Declinations and Long Term Factors, adjusted by a multiplier, such as 3X, 4X, or 5X.
Although there is no known physical correlation between these celestial movements and market behavior, the Bradley Barometer has been shown to correlate well with market turning points. However, regarding the limitations of his astro-indicator, Donald Bradley himself remarked the following:
Bradley indices are often misinterpreted, with many linking the slopes directly to market trends. Tops and bottoms can signal potential turning points in price, whether a peak or a trough. The importance of these turn dates is not dependent on the magnitude of the change before or after the turn, meaning that even moderate shifts can be just as significant as larger ones.
Abbreviations: geo = Geocentric Bradley Index; helio = Heliocentric Bradley Index; (L) = low; (H) = high. Expect the exactitude of turning points to be within ±1 day.
2024 Dec 18 (Wed) = geo (H)
2024 Dec 27 (Fri) = geo (L)
2025 May 04 (Sun) = geo (H)
2025 May 27 (Tue) = geo (H)
2025 Jun 17 (Tue) = geo (L)
2025 Jul 20 (Sun) = geo (H)
2025 Jul 30 (Wed) = geo (L)
2024 Dec 09 (Mon) = helio (L)
2024 Dec 12 (Thu) = helio (H)
2024 Dec 15 (Sun) = helio (L)
2024 Dec 16 (Mon) = helio (H)
2024 Dec 19 (Thu) = helio (L)
2024 Dec 20 (Fri) = helio (H)
2024 Dec 22 (Sun) = helio (L)
2025 Feb 08 (Sat) = helio (H)
2025 Feb 16 (Sun) = helio (L)
2025 Feb 20 (Thu) = helio (H)
2025 Feb 21 (Fri) = helio (L)
2025 Feb 22 (Sat) = helio (H)
2025 Feb 26 (Wed) = helio (L)
2025 Mar 10 (Mon) = helio (H)
2025 Mar 15 (Sat) = helio (L)
2025 Mar 19 (Wed) = helio (H)
2025 Mar 20 (Thu) = helio (L)
2025 Mar 25 (Tue) = helio (H)
2025 Mar 28 (Fri) = helio (L)
2025 Mar 29 (Sat) = helio (H)
2025 Apr 20 (Sun) = helio (L)
2025 Apr 29 (Tue) = helio (H)
2025 May 20 (Tue) = helio (L)
2025 May 28 (Wed) = helio (H)
2025 Jun 05 (Thu) = helio (L)
2025 Jun 06 (Fri) = helio (H)
2025 Jun 20 (Fri) = helio (L)
2025 Jul 11 (Fri) = helio (H)
2025 Jul 20 (Sun) = helio (L)
2025 Jul 29 (Tue) = helio (H)
2025 Aug 05 (Tue) = helio (L)
2025 Aug 09 (Sat) = helio (H)
2025 Aug 11 (Mon) = helio (L)
2025 Aug 14 (Thu) = helio (H)
2025 Aug 16 (Sat) = helio (L)
2025 Aug 18 (Mon) = helio (H)
2025 Aug 20 (Wed) = helio (L)
2025 Aug 25 (Mon) = helio (H)
2025 Aug 29 (Fri) = helio (L)
2025 Aug 31 (Sun) = helio (H)
2025 Sep 05 (Fri) = helio (L)
2025 Sep 11 (Thu) = helio (H)
2025 Sep 14 (Sun) = helio (L)
2025 Sep 21 (Sun) = helio (H)
2025 Sep 24 (Wed) = helio (L)
2025 Sep 26 (Fri) = helio (H)
2025 Oct 15 (Wed) = helio (L)
2025 Oct 24 (Fri) = helio (H)
2025 Oct 29 (Wed) = helio (L)
2025 Nov 07 (Fri) = helio (L)
2025 Nov 09 (Sun) = helio (H)
2025 Nov 13 (Thu) = helio (L)
2025 Nov 14 (Fri) = helio (H)
2025 Nov 16 (Sun) = helio (L)
2025 Nov 20 (Thu) = helio (H)
2025 Nov 25 (Tue) = helio (L)
2025 Nov 29 (Sat) = helio (H)
2025 Dec 23 (Tue) = helio (L)
2025 Dec 25 (Thu) = helio (H)
2025 Dec 27 (Sat) = helio (L)
2026 Jan 16 (Fri) = helio (H)
2026 Jan 17 (Sat) = helio (L)
2026 Jan 21 (Wed) = helio (H)
2026 Jan 25 (Sun) = helio (L)
2026 Jan 26 (Mon) = helio (H)
2026 Jan 31 (Sat) = helio (L)
2024 Dec 08 (Sun) = geo (L)
2024 Dec 09 (Mon) = helio (L)
2024 Dec 12 (Thu) = helio (H)
2024 Dec 15 (Sun) = helio (L)
2024 Dec 16 (Mon) = helio (H)
2024 Dec 18 (Wed) = geo (H)
2024 Dec 19 (Thu) = helio (L)
2024 Dec 20 (Fri) = helio (H)
2024 Dec 22 (Sun) = helio (L)
2024 Dec 27 (Fri) = geo (L)
2025 Feb 06 (Thu) = helio (L)
2025 Feb 08 (Sat) = helio (H)
2025 Feb 16 (Sun) = helio (L)
2025 Feb 20 (Thu) = helio (H)
2025 Feb 21 (Fri) = helio (L)
2025 Feb 21 (Fri) = geo (L)
2025 Feb 22 (Sat) = helio (H)
2025 Feb 26 (Wed) = helio (L)
2025 Mar 10 (Mon) = helio (H)
2025 Mar 15 (Sat) = helio (L)
2025 Mar 19 (Wed) = helio (H)
2025 Mar 20 (Thu) = helio (L)
2025 Mar 24 (Mon) = geo (H)
2025 Mar 25 (Tue) = helio (H)
2025 Mar 28 (Fri) = helio (L)
2025 Mar 29 (Sat) = helio (H)
2025 Apr 20 (Sun) = helio (L)
2025 Apr 29 (Tue) = helio (H)
2025 Apr 30 (Wed) = geo (L)
2025 May 15 (Thu) = helio (L)
2025 May 18 (Sun) = helio (H)
2025 May 20 (Tue) = helio (L)
2025 May 27 (Tue) = geo (H)
2025 May 28 (Wed) = helio (H)
2025 Jun 05 (Thu) = helio (L)
2025 Jun 06 (Fri) = helio (H)
2025 Jun 14 (Sat) = geo (L)
2025 Jun 16 (Mon) = geo (H)
2025 Jun 17 (Tue) = geo (L)
2025 Jun 20 (Fri) = helio (L)
2025 Jul 05 (Sat) = geo (H)
2025 Jul 11 (Fri) = helio (H)
2025 Jul 19 (Sat) = geo (L)
2025 Jul 20 (Sun) = geo (H)
2025 Jul 20 (Sun) = helio (L)
2025 Jul 29 (Tue) = helio (H)
2025 Jul 30 (Wed) = geo (L)
2025 Aug 05 (Tue) = helio (L)
2025 Aug 09 (Sat) = helio (H)
2025 Aug 11 (Mon) = helio (L)
2025 Aug 13 (Wed) = geo (H)
2025 Aug 14 (Thu) = helio (H)
2025 Aug 16 (Sat) = helio (L)
2025 Aug 18 (Mon) = helio (H)
2025 Aug 20 (Wed) = helio (L)
2025 Aug 25 (Mon) = helio (H)
2025 Aug 29 (Fri) = helio (L)
2025 Aug 31 (Sun) = helio (H)
2025 Sep 03 (Wed) = geo (L)
2025 Sep 05 (Fri) = helio (L)
2025 Sep 11 (Thu) = helio (H)
2025 Sep 11 (Thu) = geo (H)
2025 Sep 14 (Sun) = helio (L)
2025 Sep 21 (Sun) = helio (H)
2025 Sep 24 (Wed) = helio (L)
2025 Sep 26 (Fri) = helio (H)
2025 Oct 08 (Wed) = geo (L)
2025 Oct 15 (Wed) = helio (L)
2025 Oct 24 (Fri) = helio (H)
2025 Oct 28 (Tue) = geo (H)
2025 Oct 29 (Wed) = helio (L)
2025 Oct 30 (Thu) = helio (H)
2025 Nov 07 (Fri) = helio (L)
2025 Nov 08 (Sat) = geo (L)
2025 Nov 09 (Sun) = helio (H)
2025 Nov 13 (Thu) = helio (L)
2025 Nov 14 (Fri) = helio (H)
2025 Nov 16 (Sun) = helio (L)
2025 Nov 20 (Thu) = helio (H)
2025 Nov 22 (Sat) = geo (H)
2025 Nov 25 (Tue) = helio (L)
2025 Nov 29 (Sat) = helio (H)
2025 Dec 22 (Mon) = geo (L)
2025 Dec 23 (Tue) = helio (L)
2025 Dec 25 (Thu) = helio (H)
2025 Dec 27 (Sat) = helio (L)
2026 Jan 16 (Fri) = helio (H)
2026 Jan 17 (Sat) = helio (L)
2026 Jan 19 (Mon) = geo (H)
2026 Jan 21 (Wed) = helio (H)
2026 Jan 25 (Sun) = helio (L)
2026 Jan 26 (Mon) = helio (H)
2026 Jan 31 (Sat) = helio (L)
In bull markets, New Moons are often bottoms, and Full Moons are tops.
In bear markets, New Moons are often tops, and Full Moons are bottoms.