Should I invest my 2026 contribution into my Roth IRA now or wait a bit?

In my Roth IRA, I have been investing in FFNOX over the years. The FFNOX is compromised of about 85% stocks (about 50% domestic, 35% foreign), the other 15% in bonds. With the way the stock market has been just today, I was wondering if I should I just do my 2026 contribution now or wait a day or two to see if it will drop further before putting it in? Thanks.