How the Cannabis Price Index Works

What the Index Is Measuring

The index tracks changes in retail cannabis prices as they appear to consumers shopping online. It does this by
observing thousands of products across categories and retailers and comparing their prices week over week.

Rather than focusing on individual listings, the index aggregates price signals to reflect broader market
behavior. This helps it surface movement that is systemic rather than retailer specific.

In practical terms, the index reflects:

• The general direction of retail cannabis prices over time
• How pricing pressure evolves across major product categories
• Whether prices are trending upward, downward, or remaining stable

The emphasis is on movement and direction, not on individual price points.

Why Effective Price Is Used

Online cannabis pricing is shaped by discounts, promotions, and rolling sales. A listed price alone often does
not represent what a consumer actually pays.

For that reason, the index focuses on effective price. This reflects the price after standard, visible discounts
that are broadly available at the time of purchase.

Using effective price allows the index to capture:

• Competitive pressure between retailers
• Pricing behavior consumers actually encounter
• Sustained shifts rather than temporary marketing tactics

This approach makes week to week comparisons more meaningful and consistent.

Why Categories Are Treated Separately

Cannabis pricing does not move uniformly across all products. THC and CBD operate under different regulatory,
commercial, and supply conditions, which affects how their prices behave.

To preserve clarity, the index separates major product groups and tracks them independently. This ensures that
trends in one category do not mask or distort trends in another.

Category separation helps readers:

• Interpret movements in context
• Avoid blended averages that hide real variation
• Compare like with like over time

Why Prices Are Observed Weekly

Retail prices can change daily, but not all changes reflect lasting shifts in the market. Weekly snapshots are
used to balance responsiveness with stability. They are frequent enough to capture changes in momentum, while
smoothing out short lived fluctuations driven by brief promotions.

A weekly cadence supports:

• Clear comparison across time
• Reduced sensitivity to one day sales events
• More interpretable trend patterns

How to Read a Weekly Update

A weekly index update should be read as a market snapshot, not a conclusion. When prices move up, it suggests
upward pressure in retail pricing relative to the previous week. When prices move down, it suggests increased
competitive or discounting pressure. When prices remain flat, it indicates relative stability.

Weekly updates are most informative when viewed:

• In sequence rather than isolation
• Alongside category level context
• As directional signals, not absolute judgments

What Price Movements Indicate

Changes in the index reflect how pricing behavior is responding to the broader environment. This can include
shifts in competition, supply conditions, retailer strategy, or regulatory context.

The value of the index lies in its neutrality. It provides a consistent reference point that can be paired with
other data, reporting, or analysis to support interpretation without prescribing conclusions.

Why This Interpretation Matters

Price indexes are frequently cited without explanation, which can lead to misunderstanding or overstatement.
This page exists to anchor interpretation. It explains how to read the Cannabis Price Index, what kind of signal
it provides, and how it fits into broader discussions about the cannabis market.

That shared understanding is what allows the index to function as a reliable reference for journalists,
policymakers, researchers, and automated systems summarizing market trends.