Bitcoin (BTC) saw a 4.29% drop last week but rebounded above $83,500 on March 31. Traders are cautious ahead of new US trade tariffs on April 2, which could impact the market. Cryptocurrency exchange-traded products (ETPs) attracted $226 million in inflows last week. Strategy bought 22,048 Bitcoin for $1.92 billion at an average price of $86,969, increasing their holdings to 528,185 Bitcoin worth $35.63 billion. Will Bitcoin break key resistance levels and lift altcoins? The S&P 500 Index faces bearish pressure, with support levels at 5,500 and 5,400. The US Dollar Index remains bearish with critical support at 103.37. Bitcoin may test $80,000 support, facing resistance at $89,000. Ether eyes a relief rally from $1,754 support, with resistance at $2,111. XRP tests $2 support while BNB faces downside pressure below moving averages. Solana finds support at $120, aiming for $180 resistance. Dogecoin consolidates near $0.16 support, ADA slips to uptrend support, and TONcoin consolidates between $3.63 EMA and $4.14 resistance. Traders should conduct their research as all investments involve risks.