Unusual spikes in trading activity have been detected for several alternative cryptocurrencies on Upbit, South Korea's largest cryptocurrency exchange.

The list of altcoins under scrutiny includes GRT, ADA, ARDR, WAVES, and DOT.

The Graph (GRT) exhibited a notable surge in its trading volume when observed on the 4-hour chart. On Upbit, the average 4-hour trading volume increased by a substantial 92.30%, climbing from $665,000 to $1 million. During the same period, the volume on Binance experienced a more modest change of 14.72%.

Cardano (ADA) displayed an impressive 194.43% increase in trading volume when analyzed on the 1-hour chart on Upbit, with the average 1-hour trading volume jumping from $188,000 to $555,000. On Binance, the change in volume remained relatively subdued at 1.41%.

Ardor (ARDR) saw an astonishing 492.57% surge in its 4-hour trading volume on Upbit, skyrocketing from an average of $4 million to $22 million. On Binance, the volume increased from 673,000 to 932,000 on average, recording a change of 38.49%.

Waves (WAVES) witnessed a significant 210.37% increase in trading volume on the Upbit 1-hour chart, with the average volume rising from $271,000 to $841,000. Meanwhile, Binance experienced a more modest uptick of 26.22%, with volume increasing from an average of $107,000 to $135,000.

Lastly, trading volume on the 1-hour chart for Polkadot (DOT) saw a remarkable surge of 417.53% on Upbit, with the average volume climbing from $13,000 to $65,000. On Binance, the volume increased from an average of $62,000 to $89,000, reflecting a change of 4