Gain Lock In Backtests for Trading ETFs Based on Major Market Indexes The Security Trading Analytics blog includes a growing series of posts featuring the Proper Order Gain Lock‑in (POGL) model because of its repeated success in different contexts. The model implements an algorithm for specifying when to buy and sell a financial security. This post presents backtested results for the model’s gain lock-in feature. If you have ever been frustrated by watching accumulated gains evaporate before you can harvest them, this post may be worth your time. Data analysts may also find value in the discussion of the model, the demonstration of a backtesting workflow, and the evaluation of backtested outcomes. Listener‑friendly audio deep dives on the POGL model are available in either of the following posts: A Preliminary Analysis of EMA Period Lengths and Price Action in a Buy-Sell Model Posts On Single-Stock ETFs and Modeling Buy-Sell Decisions An Overview of the POGL Model Th...