Calculation for finding uptrend or downtrend as per Dow theory

akhilesh · January 24, 2026, 2:03am

I am unable to find the correct calculation for finding trends as per dow theory. Can somebody please guide as to how to find it in python . Any guidance or help is much appreciated.

regards:
Akhilesh

Imran · January 24, 2026, 11:27am

Team,
please send zigzag indicator code

Tradehull_Priya · January 27, 2026, 9:49am

Hi @akhilesh ,

Refer the below link-

github.com

jbn/ZigZag/blob/main/zigzag_demo.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Using ZigZag\n",
    "===\n",
    "[ZigZag](https://pypi.python.org/pypi/ZigZag) is a (very) small library [I](http://twitter.com/generativist) wrote for calculating the peaks and valleys of a sequence (e.g. time series data). It also can calculate the [maximum drawdown](http://en.wikipedia.org/wiki/Drawdown_(economics)), a useful metric for trading analysis. The repository is on github at [https://github.com/jbn/ZigZag](https://github.com/jbn/ZigZag). Prior to version `0.1.4` it optionally used [`numba`](https://github.com/numba/numba); starting with version `0.1.4`, I switched to [`Cython`](http://cython.org/). \n",
    "\n",
    "This notebook demonstrates how to use ZigZag, and draws attention to a few caveats.\n",
    "\n",
    "Installation\n",
    "---\n",
    "`pip install zigzag`\n",
    "\n",
    "Basic Usage\n",
    "---"
   ]
  },

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