MethodologyDocsPricingContactSign in
Get the indicator
MethodologyDocsPricingContactSign in
Get the indicator
For Sierra Chart

The order book, event by event, on Sierra Chart.

The Pulling & Stacking Indicator is a custom study for Sierra Chart. It decomposes every resting order stacked or pulled, and every aggressive execution, into one normalized signal, drawn in its own chart region under the price.

BookmapMotiveWaveSierra ChartOrder-flow traders
A Sierra Chart 1-minute chart with volume, arrows at the price, the flow panel below with its band and both right-hand scales, and the Pulling & Stacking Console in the top-left corner

What it adds to Sierra Chart

Flow under the price

Total Flow, Passive Flow and Aggressive Flow update on every order book change and every trade, with no smoothing and no lagging average. Arrows on the price chart mark the moments the flow crosses its band.

Buy and sell lines

Switch to Buy / Sell mode to plot buy-side and sell-side flow as separate lines, so one side going vertical while the other flatlines is visible instead of netted away.

The console

The Pulling & Stacking Console opens next to your charts, with one tile per symbol, so you can follow several charts in one place.

Install

Install in short

Download the Sierra Chart zip from your Stack Signal account and unzip it. Copy PullingAndStackingIndicator_64.dll into the Data folder of your Sierra Chart installation, usually C:\SierraChart\Data. Open a chart, choose Analysis > Studies, click Add Custom Study and add Pulling & Stacking Indicator. Accept the Terms and Conditions, then enter your licence key in the study settings.

Requirements

  • Sierra Chart, 64-bit, on Windows.
  • A data feed with Level 2 market depth (the order book) and Time & Sales that identifies the side of each trade. Level 1 is not enough.
  • In Sierra Chart, leave Max Depth Levels (Global Settings > Sierra Chart Server Settings) at 30 or more, or at 0 for all levels.
  • An internet connection while the indicator runs, to confirm the licence (see the indicator privacy policy).
  • One licence key works on one computer at a time.

Replay

Live data, and Chart Replay at 1x or 2x. At faster speeds the indicator pauses until the replay is back at 2x or slower. Replay needs the market depth data Sierra Chart recorded for the day being played: without it, Passive Flow stays near 0.

Get the indicatorSierra Chart install guide→Sierra Chart settings reference→

Order flow decomposed into one normalized signal. On Bookmap, MotiveWave and Sierra Chart.

contact@stacksignal.com
ProductOverviewPricingBookmap MarketplaceContact
DocumentationStart hereSignalsStates & alertsSettings referenceUpgrading from 2.xMethodology
ForWho it is forBookmapMotiveWaveSierra ChartOrder-flow traders
LegalPatent markingPrivacy policyIndicator privacy policyDisclosuresTerms of Sale

Risk disclosure. Futures and forex trading contains substantial risk and is not for every investor. An investor could potentially lose all or more than the initial investment. Risk capital is money that can be lost without jeopardizing one's financial security or lifestyle. Only risk capital should be used for trading and only those with sufficient risk capital should consider trading. Past performance is not necessarily indicative of future results. The possibility of profit is not equal to the possibility of loss: losses can be larger than any gains, and you can lose more than you invest.

The Pulling & Stacking Indicator is an analytical tool. It does not provide investment advice or trade recommendations, and nothing it displays is a signal to buy or sell.

Hypothetical performance disclosure. Hypothetical performance results have many inherent limitations, some of which are described below. No representation is being made that any account will or is likely to achieve profits or losses similar to those shown; in fact, there are frequently sharp differences between hypothetical performance results and the actual results subsequently achieved by any particular trading program. One of the limitations of hypothetical performance results is that they are generally prepared with the benefit of hindsight. In addition, hypothetical trading does not involve financial risk, and no hypothetical trading record can completely account for the impact of financial risk of actual trading. For example, the ability to withstand losses or to adhere to a particular trading program in spite of trading losses are material points which can also adversely affect actual trading results. There are numerous other factors related to the markets in general or to the implementation of any specific trading program which cannot be fully accounted for in the preparation of hypothetical performance results and all which can adversely affect trading results.

Chart images. The chart images on this site show the indicator's display on market data, to explain what it draws. They are not trading results or trade recommendations, and the risk and hypothetical performance disclosures above apply to them. We publish no trading performance.

Virtual currencies. Some chart images show cryptocurrency instruments. View CFTC advisories, as they contain more information on the risks associated with trading virtual currencies.

Trademarks. Stack Signal™ and Pulling & Stacking™ are trademarks of Stack Signal. Bookmap, MotiveWave and Sierra Chart are trademarks or registered trademarks of their respective owners. Stack Signal is not affiliated with, sponsored by or endorsed by those owners.

© 2026 Stack SignalPulling & Stacking Indicator: U.S. Design Patent Nos. D1,099,944 and D1,100,945 (stacksignal.com/patents/)

We’d like to set analytics cookies to measure which pages traders actually read. Nothing non-essential is set until you choose. No advertising trackers, ever. Privacy policy

Cookie preferences

Choose what we may set

You can change this at any time from “Cookie preferences” in the footer. Declining costs you nothing: the site works identically either way.

Strictly necessary

Keeps the site working and records this very choice. Cannot be switched off.

Always on

We set no advertising, retargeting, or cross-site tracking cookies, and we honour a Global Privacy Control signal automatically. Full cookie list in the privacy policy