The charts are not looking too happy today....could be 'blood on the streets' time next :(. But if so, that's a great short term trading opportunity. ETH, in particular looks to me like it might be close to becoming a bit tasty looking!

But in answer to your question, perhaps you are right...my recollection is actually that recently Friday through Saturday are normally more positive that other days. But at this point re. market sentiment, i think it's anyone's guess.