It does if the implied valuation is higher. And it signals to the market that you're worth $x which is greater than your prior valuation (assuming one exists), which anchors the price a buyer will pay for your business
I wonder if anyone has statistics on how often a new funding round increases valuation enough to offset dilution. I suspect that's generally the case, but I may be biased by the fact that funding rounds I hear about are more likely to be the successful ones.
