Blog

Essays on trading psychology and method, chart reads and market notes, since 2018.

107 posts · page 3 of 18

Buy the dip: What 38 years of S&P 500 data say

By Markus · October 18, 2026 · 6 min

Buying the dip means keeping cash aside and investing it when the market falls. I tested it on the S&P 500 with dividends since 1989: $500 a month…

By Markus · October 17, 2026 · 7 min

Bollinger Bands are a 20-day moving average with a band two standard deviations above and below it. I tested John Bollinger’s own rules on the S&P…

By Markus · October 16, 2026 · 6 min

Bitcoin has had 10 death crosses since 2015, the days its 50-day moving average fell below the 200-day. A year later the price was higher after 5 of…

By Markus · October 15, 2026 · 5 min

Risk of ruin is the chance that a run of losses takes your account down to a point you can’t come back from. I simulated 1,000 trades, 10,000 times…

By Markus · October 14, 2026 · 7 min

The risk reward ratio compares what a trade can lose, from the entry to the stop, with what it can make, from the entry to the target. Risk $1 to…

By Markus · October 13, 2026 · 5 min

Bitcoin has had four halvings: 28 November 2012, 9 July 2016, 11 May 2020 and 20 April 2024. After each one the price peaked 371 to 546 days later…