Polkadot (DOT), a leading public blockchain platform, is struggling to maintain its price above $7. Over the weekend, the market was largely influenced by sellers, causing the price to dip to $6.93 on Sunday. This drop followed a period of significant gains during the preceding week. The current market dynamics underscore the volatile nature of the cryptocurrency market. Despite the recent downturn, Polkadot's overall performance remains noteworthy in the broader context of the blockchain industry.