Gann Swing

One-Bar Swing Chart (1-Bar Swing Chart): The One-Bar Swing Chart, or Minor Trend Chart, follows the one-bar movements of the market. From a low price, each time the market makes a higher-high than the previous bar, a One-Bar trend line moves up from the recent low to the new high. This action makes the previous low price a One-Bar bottom. From a high price each time the market makes a lower-low than the previous bar, a One-Bar swing line moves down from the recent high to the new low. This action makes the previous high price a One-Bar top.
The combination of One-Bar tops and bottoms forms the One-Bar trend indicator chart. The crossing of a One-Bar swing top changes the One-Bar trend to up. The penetration of a One-Bar swing bottom changes the One-Bar trend to down."