The recent negative moment in the Mortgage Backed Securities has evidenced a 1% (at times higher) jump in rates. A move such as this can force a pause for many investors who believe they may have gotten into the game too late and missed the best rate options, losing out on best possible cash flows. Recently speaking with an investor he shared significant concern for the difference he was seeing when attempting to close on another purchase this year with a 1% increase in rate from late 2017.