It's probably not a coincidence that on the day bitcoin hit new all time highs above $5,200, and just over a week after the WSJ reported that Goldman is planning a bitcoin trading operation, JPMorgan seems to be changing it tune.

With Bitcoin soaring nearly 100% from the bottom of the sharp selloff following Jamie Dimon's slam of cryptocurrencies as "frauds" exactly one month ago today, bitcoin was one of the more popular topics on today's earnings call, where JPMorgan CFO Marianne Lake confirmed what everyone already knew, namely that the technology underlying bitcoin - blockchain - is something the bank is investing in, and is "very optimistic" about the underlying technology of distributed ledgers and blockchain.

However, what was more interesting is that when asked whether the bank would consider looking at opportunities in digital currencies, Lake responded that JPMorgan is "open-minded" to potential use in the future for cryptocurrencies that are regulated.