There are a number of spikes on the chart above.
January 8th/9th - Solana experiences a flash crash then a recovery investors decide to Swap To Solana possibly in anticipation of a recover after. This could have been motivated by Solana's strong price performance in late 2021.
January 10/11th - Another dip in Solana's price this time with a slower recover the price dips below the low of the 8/9th and investors swap to Solana this time the volume hits 175 Billion.
January 23th - This doesn't look like a case of 3rd time lucky after investors have experienced multiple dips it looks as if the sentiment is to swap away from Solana possibly to protect their investment against further dips.
January 31st - A similar trend investors swap away from Sol after another market dip. Could investors now be looking elsewhere for crypto's to invest in or are they attempting to protect tehri investment with stable coins after seeing multiple dips in 2022?