Bitcoin matched Monday's high near $87,300 before running into selling, while bitcoin cash surged 28% on a CME futures listing and ZEC added 9%.

Prices at the time of writing, on 23 September: Bitcoin (BTC) at $83,906, which slipped 3.0% over the previous day and climbed 11.2% across the week; and Zcash (ZEC) at $1,537, which slipped 1.2% over the previous day and climbed 25.2% across the week. The wider market slipped 2.7% over the same span, with total capitalisation at $2.93T.

Our own momentum signal on Bitcoin reads 58 out of 100 — neutral — weighting the 24-hour move twice the seven-day one. Fifty is flat; the venue or filing has no say in that score.