How to tell from the candlestick that no one is playing a coin? Trading volume is the most direct signal. The measuring column is mostly on the ground, close to zero, occasionally suddenly popping up a very high one, and then returning to zero. That tall one is either a market maker's reversal or a retail investor who came in and made a fortune. The quantity is intermittent and disjointed. In terms of K-line shape, the shadow is particularly long and the entity is particularly small. The open market orders are sparse, and a market order of a few hundred U can break through the price by several percentage points and bounce back, so the full screen is filled with "needles" - long upper shadow, long lower shadow, cross star, but the closing and opening prices are similar. The price trend is not a normal wave, it is a step like pattern. A certain position remained motionless for a long time, then suddenly jumped and stopped sideways again. There are often gaps between the 1-minute candlesticks. If there are market makers, it will be more interesting: the trading interval is fixed, the volume is almost the same, and it is obvious that the robot is maintaining the lowest liquidity. The candlestick appears to be 'false stable', but as soon as real users enter, the price immediately fluctuates sharply. The price difference between buying and selling is also very indicative of the problem. Normally, active currencies have a difference of 0.01% -0.05%, while coins that no one plays can have a difference of 1% -3%. The opening is as thin as paper. The K-line of a normal coin is a continuous noise, while a coin that no one plays is an occasional scream in silence.