Stay the course during this volatility. Hate to say it but if it continues to swing downward it becomes a great buying opportunity.
I've been thinking lately of funneling more of my money into paying off my mortgage. The interest on the loan is only 5% but I have an additional PMI payment on top of it for $160 a month. I've got years before I can get to a point where the payment disappears, so I was looking to start popping in more cash on a regular basis to try and get there faster. I just hate having to flush that money down the toilet. The last few months I've put $100 extra into the principle but I am debating on ramping that up.
I know it's the most illiquid place I can put my money but it is nice to see that mortgage note come down faster as well as the knowledge that 1) Every dollar I put in now becomes approximately $3 in savings through the life of the loan (70 months into the mortgage) and 2) I would have the house paid off at around 50 years old.
Ultimately the goal is to buy off my freedom from corporate america, so I get that maybe this isn't the wisest move.
It might be helpful to think of your mortgage payment as a fixed return component of your investments. Just as a bond gives you a fixed return over a certain time horizon, so does an early payment of principal to your loan (the % of your home loan). So you can look at it both from the perspective of how long it will take to pay off the loan, as well as what % of your investments do you want going toward a fixed return vs. equities.
I don't hold any bonds, but the monthly amount I put into paying down the mortgage early is similar to what is commonly suggested as being a good bond to equity ratio (~20-30%). I keep an amortization schedule of my mortgage that adjusts every month as I enter the next payment, to show the new payoff date. It's useful for running scenarios ("how much would tossing a few thousand at it now help?") and planning.