Parabolic SAR
A series of dots that flip sides of the price as the trend changes — built specifically to suggest where a trailing stop could sit.
Parabolic SAR ("Stop And Reverse") plots a dot below price during an uptrend and above price during a downtrend, stepping closer to price as the trend matures. When price actually touches the dot, the indicator flips to the other side — read as the trend potentially reversing. Unlike RSI or MACD, it was designed from the start as a trailing-stop tool, not a standalone buy/sell trigger.
It's available as a live overlay on InsiderWolf's chart. The dots accelerate their approach toward price the longer a trend runs, which is a deliberate design choice: the longer a trend has gone on, the tighter the indicator pulls its hypothetical stop, on the reasoning that a mature trend deserves less room before being considered over.
Parabolic SAR is built around the assumption of a trending market — it flips sides every time price crosses it, which in a genuine trend happens rarely, but in a choppy, range-bound market can happen repeatedly in quick succession, generating a string of contradictory signals in a short window.
A stock trends up cleanly for six weeks, with SAR trailing tightly below it the whole way, flipping only once when the trend actually reverses — a clean, useful read. The same stock then spends the next month drifting sideways in a tight range, and SAR flips sides four separate times in three weeks as price oscillates back and forth across it — each flip technically a "signal," none of them meaningfully predictive, since there's no real trend for the indicator to trail.
- It's a trend-following tool by design, not a reversal-prediction tool — it works best once a trend is already established, and worst in sideways, range-bound conditions.
- The accelerating dots are a deliberate feature, not a flaw — a mature, extended trend gets a progressively tighter hypothetical stop.
- Commonly paired with a trend-strength read (like this track's own Trend Strength score) specifically to filter out the sideways-market whipsaw case.