Larry Williams Large Trade Index

In professional market theory, LWTI sits in:
Order-flow / Participation Oscillators
Same family as:
Accumulation/Distribution
Volume Oscillator
Smart Money Index
Cumulative Delta

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Larry Williams’ Large Trade Index (LWTI) is a smart-money detector.

It is a technical indicator designed to tell you when large professional traders (banks, funds, institutions) are actively buying or selling — instead of small retail traders just churning price.

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The idea behind it

Larry Williams observed something very simple but powerful:

Big traders leave volume footprints.

When institutions enter the market:

• Volume jumps

• Price moves more efficiently

• Pullbacks become shallow

• Trends suddenly “stick”

The Large Trade Index isolates those moments.
It separates:

• Small random trades (noise)

• from large committed trades (smart money)

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What LTI actually measures
Under the hood, LTI looks at:

• Price change

• Volume

• How much volume is needed to move price

Then it answers one question:

“Are large traders aggressively pushing price, or is this just retail noise?”

If price rises on little volume → retail
If price rises on heavy volume → institutions

LTI rises when big players are active.

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How it is read
On MT4, LTI is shown as an oscillator line.
Typical interpretation:

LTI behavior // Meaning
Rising above zero = Institutions are buying
Falling below zero = Institutions are selling
Flat near zero = Market is controlled by retail noise
Spikes = Strong institutional entry
Divergence = Smart money is leaving before price turns

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Also check out Larry's Market Structure indicator:
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