Bitcoin Quarterly Closing Prices are Now Available on CryptoRank
According to CryptoRank analytics, the closing price of BTC in Q2 2020 was $9,142. This result represents the 3rd highest quarterly closing price in BTC history.
Moreover, CryptoRank provides Bitcoin performance analytics for different timeframes: from 24 hours to 3 years.
Both analytics charts are available for all altсoins too.
Check this out https://cryptorank.io/currencies/bitcoin/price-chart