Reading a crypto quote across denominations

Module 1 installed the venue-pair reflex. This lesson reads the pair - because crypto's conventions trap is the denominator, and it is a subtler trap than any pence or cents lesson before it.

The three denominators

• Against a stablecoin: usually the deepest, most-quoted market - and 'dollars' only to the extent the stablecoin holds its peg; in the rare breaks module 8 examines, a stablecoin-denominated price is measuring against a moving stick.
• Against fiat: real dollars or currency through banking rails - the truest dollar price, often thinner than the stablecoin pair, and the on-ramp where the asset class meets the regulated financial system.
• Against another coin: a relative-value quote that moves when either coin moves - reading it as a directional view on one leg is the FX cross error, and the FX track's cross lessons apply verbatim.

The reading skill

Fix the base before the number means anything: a 5% move against a stablecoin that itself slipped 1% against the dollar is a 6% dollar move - the two-legged arithmetic the FX track built, now routine. Charts inherit the trap: a coin's dollar chart and its stablecoin chart differ by the peg's wander, usually invisibly, occasionally not - and a portfolio mixing bases is mismeasuring itself exactly as a pence-and-pounds spreadsheet did. Name the denominator, convert to one base, then read.

The tick and the precision

Crypto has no standard tick: each venue sets price precision per pair, and cheap tokens quote to many decimals while expensive coins quote to few - so 'a tick' is a venue-and-pair fact, and cross-venue depth comparisons must normalise it. The composite quote from module 1 is now complete: venue, pair, base currency, and the venue's own precision - four facts, read in that order, before the price is a fact at all.