Bitcoin (BTC) plummeted close to the crucial support of $20,000 as traders panicked and dumped their holdings, fearing an aggressive rate hike by the United States Federal Reserve on June 15. Another reason for the sell-off could be fears of possible contagion if lending platform Celsius and crypto venture capital firm Three Arrows Capital (3AC) go belly up.

Data from on-chain analytics platform CryptoQuant showed 24-hour exchange inflows of 59,376 Bitcoin on June 14, the highest inflows since November 30, 2018. The Bitcoin miners also joined other investors in sending Bitcoin to the exchanges. The Bitcoin Miners to Exchange flow metric reached a seven-month high of 9,476, indicating that the miners may be anticipating a further fall in the near term.

Daily cryptocurrency market performance. Source: Coin360

Prominent investors are divided on whether a bottom has been made in Bitcoin or not. Galaxy Digital Holdings chairman and CEO Mike Novogratz believes that Bitcoin could hold $20,000 and Ether (ETH) may bottom out at $1,000. These levels were also referred to by Arthur Hayes, co-founder and former chief of BitMEX, who cautioned that if the levels crack, it may lead to “massive sell pressure in spot markets.”

What are the important levels to watch out for on Bitcoin and major altcoins? Let’s study the charts of the top-10 cryptocurrencies to find out.