Curriculum·S203 Chart Literacy and Evidence·about 40 min
Volatility and volume tools
By the end of this lesson you can
- →Explain why volatility tools are the most defensible indicators and what they are defensible for
- →Establish the provenance of a volume series before computing anything from it
- →Compute a position size from a volatility measure rather than from a fixed percentage
- →Distinguish volume that reflects transfer of inventory from volume that reflects nothing
Sophomore · enrolled learners
This lesson opens with Bitwise's volume analysis for the SEC, March 2019.
- What happened
- In March 2019 Bitwise presented analysis to the US Securities and Exchange Commission in support of a bitcoin exchange-traded fund application. Examining the volume that exchanges self-reported to aggregators, it concluded that up to 95 percent of reported bitcoin spot volume was fake or non-economic, with wash trading given as an example of non-economic activity. Against roughly $6B of self-reported daily volume, it estimated genuine volume at around $273M. Of the 81 largest exchanges examined, it identified ten as reporting substantially accurate figures. The analysis was submitted in the context of SEC concerns about market manipulation.
- The decision point
- Every volume-derived indicator computes a number from an input series. Where a large share of that series is fabricated, the indicator is not noisy, it is measuring a fiction with full precision. Nothing on a chart distinguishes the two cases, and the aggregators most retail tools draw from were the ones receiving the self-reported figures.
What you will be able to answer
- →Why are volatility tools the most defensible indicators?
- →What must you establish before using any volume tool?
- →How should volatility drive position size?
- →What does volume actually measure?
Orientation and Year One are open: anyone can read them without an account. From Year Two onward the lessons are for enrolled learners, because progress through the later years only means anything if it is tracked against a record.
It is free. We do not sell the list and there is nothing to buy at the end of it.
Sources and review
- https://www.sec.gov/comments/sr-nysearca-2019-01/srnysearca201901-5574233-185408.pdf
- https://www.coindesk.com/markets/2019/05/27/public-perceptions-of-the-bitcoin-spot-market-are-wrong-says-bitwise
- https://www.coindesk.com/research/market-spotlight-the-19-billion-liquidation-that-shook-crypto
- https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2308659
Confidence medium·Volatility high·Reviewed 2026-08-05·Owner unassigned
Contested
The 95 percent figure is Bitwise's estimate from 2019, produced in support of its own ETF application, and market structure has changed substantially since, including through regulated venues and improved aggregator methodology. Quote it with its date and its context. The durable point is that volume provenance must be established rather than assumed, not that any current figure is 95 percent.
Whether volatility clustering, which is well established in academic literature, transfers cleanly to crypto at all horizons is not something this lesson establishes. The sizing use does not depend on forecasting volatility precisely, only on recent volatility being informative about near-term volatility, which is a weaker claim.