Does your ranking fall as your inventory dwindles closer to 0?

It’s common knowledge that being completely out of stock hurts your ranking.

But what about when your stock gets closer and closer to 0? For example, when you only have 6 units left? I was selling pretty well for 5 days (10 units sold, 10 units sold, 8 units sold, 4 units sold, 8 units sold), but then I made zero sales for the last few days as I have only 6 units in inventory left. I wonder if the reason why I made zero sales the last few days is because I only have 6 units left??