im def a noob here, and to cryptocurrency altogether....so forgive me if I'm a bit daft but.... Look at the coin market on cryptocompare. There is literally a wall of red for percentages. The top 20 coins are all in red. Why would anyone be surprised that sigt is also in a declined value? I would expect such, seeing as virtually half the crypto is in decline today.
The decline in price is normal but the decline in Volume is not
Price can fluctuate easily but if the Volume decrease it means there are fewer Buy and Sell Transactions. Very low transactions per day and the coin will suffer slow Death