Fifteen-second charts versus one-minute charts

[Amanhasnoname]

Dropping to a faster timeframe feels like gaining precision. In practice, it often means gaining noise.

A fifteen-second bar contains far fewer ticks than a one-minute bar, so patterns formed on it are more random. Signals multiply, and the share of meaningful ones falls.

Costs stay the same, so the cost per unit of price movement rises. A strategy that trades fifteen-second signals pays the spread on many more trades, and the edge per trade shrinks.

There are benefits. Faster charts give earlier entries and tighter stops, and some strategies truly depend on speed. But the execution quality required rises too, with slippage and latency counting for more.

The test is running the same logic on both timeframes, with realistic costs, and comparing the results. Often the one-minute version wins on net returns.

If the faster chart is used, a filter from a slower timeframe can restore some signal quality.

What was the result of moving to a faster timeframe, and did costs change the picture?