Grip compresses trend quality into one number from −1 to +1 — the statistical correlation between price and time. A market gripping the trend reads near +1. Chop reads near zero. You stop guessing which one you're in.
Most trend tools show you a line and leave the judgment to you. Grip measures the thing directly: how linearly is price actually moving through time?
Grip is the Pearson correlation between price and time over your lookback (default 14 bars). +1 means every bar advanced the trend — a market that will not let go. Near zero means price is going nowhere in particular, however dramatic the candles look.
Two fill modes, switchable live with a hotkey. Historical paints a gradient under the curve so you can read every regime shift at a glance. Current tints the whole panel by right now — glance at your chart from across the room and know which market you're in.
A flip through zero means nothing until it proves itself. Grip only draws a crossover line on your price chart once the index reaches ±0.25 in the new direction. A cross that stalls and returns is discarded — you never see it, and you never trade it.
Regime changes are drawn as vertical lines on your price panel — not buried in a sub-panel. Show bull flips, bear flips, or both, and choose whether to keep the full history or only the most recent line of each type.
The confirmation threshold is configurable, and it's the difference between a regime tool and a noise generator. Every zero-cross is held pending until the index commits; the ones that don't are silently dropped.
Ctrl+Shift+H cycles the fill mode, Ctrl+Shift+L cycles which crossover lines show, Ctrl+Shift+K toggles history versus current-only — all without opening the settings dialog mid-session. Fully remappable.
The fill intensity scales with the reading itself: a +0.9 trend glows, a +0.3 drift barely registers. Opacity ceiling and both colors are yours to set.
Grip reads price, nothing else. Any instrument, any bar type, any data feed — no depth subscription required. Run it on the same chart as Holdfast Liquidity Levels or standalone on a swing chart.
Calculates on bar close, so the reading you see is the reading that happened. No forming-bar flicker, no repainted history.
Let's be straight: Grip is the Pearson correlation of price against bar index, the −1 to +1 trend-strength reading most platforms ship in some form. The math is not secret and Grip does not pretend otherwise. What you're buying is the reading turned into something you act on at a glance instead of a wandering line you interpret — the same difference between a thermometer and a number you have to compute.
None of this is a smarter formula. It's the correlation you could already pull up, rendered so the strength, the flips, and the noise filter are decided for you — leaving your attention on the trade instead of the reading.
Grip is deliberately the lightest tool in the catalog — a sub-panel oscillator with no special data requirements. If NinjaTrader runs, Grip runs.
30-day money-back guarantee on every plan. If it doesn't earn a place on your chart, email us and we'll refund it.
The Pearson correlation coefficient between price and bar index over your lookback window. It's a standard statistical measure of how linear a relationship is — applied to price against time, it reads +1 for a perfectly consistent ascent, −1 for a perfectly consistent decline, and near zero when price isn't going anywhere. No smoothing tricks, no proprietary black box: a defensible number with a precise meaning.
No. Grip reads price bars only. Any data feed that drives NinjaTrader drives Grip, on any instrument and any bar type.
No. It calculates on bar close, and crossover lines are only drawn once the confirmation threshold is reached — and once drawn, they stay. The pending-cross mechanism exists precisely so you never see a signal that later un-happens.
14 is the default and suits intraday charts well. Shorter reacts faster and flips more; longer reads the bigger swing and ignores the noise. It's one parameter — experimenting takes minutes, and the hotkeys make it easy to compare visually.
No. Grip tells you whether the market currently rewards trend-following at all — which is arguably the decision that matters most, and the one most tools skip. Where to enter is what levels are for.