Many of these investors are said to have exited the bond market as they lost their profit opportunities due to smaller fluctuations in interest rates that resulted from the introduction of yield curve control.
If interest rates fluctuate to some extent again and such investors stay in the market, this will help maintain the price stabilization function in the market during periods of high volatility. I think that the Bank's clarification regarding the range of JGB yield fluctuations will also contribute to financial system stability.