Before charting software existed, floor traders at the futures exchanges did this math by hand every morning on a scrap of paper: yesterday's high, low and close, run through a simple formula, to get a handful of levels for the day ahead. That formula still ships as a built-in indicator on every major platform decades later, and it still gets respected, not out of nostalgia but because enough traders still use it that the levels remain a genuine, shared reference point. A tool that predates the computer surviving into an era of algorithmic execution is itself worth noticing: the formula never claimed to predict anything, it only ever organized yesterday's data into today's map, and that modest promise is exactly what it still delivers.
The formula itself
The central pivot equals the previous session's high, low and close added together and divided by three. From there, resistance one equals twice the pivot minus the previous low, and support one equals twice the pivot minus the previous high. A second pair, resistance two and support two, adds or subtracts the previous session's full range from the pivot. Every level is computed once at the start of the day from the prior session's data and then held fixed, which is exactly what makes it useful: no repainting, no lag from live recalculation.
A worked example on EURUSD
Yesterday's session closed with a high of 1.0895, a low of 1.0820 and a close of 1.0860. The pivot is 1.0858. Resistance one is 2 times 1.0858 minus 1.0820, which is 1.0896. Support one is 2 times 1.0858 minus 1.0895, which is 1.0821. Resistance two is the pivot plus the prior range of 0.0075, giving 1.0933, and support two is the pivot minus that same range, giving 1.0783. Five numbers, computed in under a minute, and every one of them now sits on the chart before the session even opens.
Trading price against the levels, honestly
On a genuinely quiet, range bound day, price often oscillates between support one and resistance one, and fading each touch with a tight stop just beyond the level has real merit, the same logic as fading any well earned support or resistance zone. On a trending day, the pivot levels get run through cleanly, resistance one breaks and becomes a floor for a continued push toward resistance two, and fading that same level would have been a losing trade all session. The levels do not tell you which day you are in. Watching the first hour's behavior around the central pivot, holding above it versus rejecting below it, gives an early read on which script the session is following.
Where pivots fit with everything else
Pivots work best stacked with other reasons rather than traded alone: a resistance one that lines up with yesterday's actual high or a round number carries more weight than one sitting in open air. They are a mechanical starting point for marking the day, not a complete trading system on their own, and like every level based tool here they lag by definition, since every number is built entirely from data that already happened. Some platforms also offer weekly and monthly pivots, computed the same way from the prior week's or month's high, low and close, and they matter for the same reason the weekly and monthly opens matter: a daily support one sitting close to a weekly pivot has more genuine agreement behind it than a daily level with nothing else nearby.