@barrydutton I think it makes sense to increase the minimum trade size. 100’000 satoshis is around $8. Having a minimum tick size of 0.00001 makes sense. That’s 80 cents, which is nothing for a digital asset worth $8000. It’s one-hundredth of a percent.

As for the stopping of market manipulation techniques, I am in favour of this proposal, although it will in practice be difficult to prove. Lots of shades of grey to judge.

As far as I can see, those who “pump” do so at their peril, because someone, like me, may decide to take the artificially good price. It’s doubtful that any pump can survive long before the price difference is arbitraged away.

I can see that with the introduction of bitcoin futures planned for December on the CME, and probably at the same time on the CBOE, there could be a pump issue if the Bittrex price is used as part of the cash reference rate. In that case, someone could pump the price on Bittrex in order to get a better price on a much larger CME or CBOE futures trade or cash settlement. This does not seem to be a risk - yet, because Bittrex does not seem to be part of the reference price.

The CME says “Several bitcoin exchanges and trading platforms will provide pricing data, including Bitstamp, GDAX, itBit and Kraken.”

Cboe Bitcoin (USD) futures are cash-settled futures contracts that are based on the Gemini auction price for bitcoin in U.S. dollars.