On July 21, it rose to 10,839 points, setting a new high. In the Bollinger band, the rise continued along the plus 2σ band, but the feet are adjusted from overheating to the mid band. Adjustments at RCI continue to drive down numbers. As a strategy for the future, the upward trend between trend lines continued for a long time, but it fell to the downside support line. If you can stop, it will be a hit, but if you break down, there is a possibility of trend change. If the trend changes, it will be a contrarian strategy, but if it becomes a hit, it will continue to be a trend follow strategy, so I would like to confirm whether it will stop lowering.