BATS Exchange gains primary listings

Today the BATS Exchange, a Kansas City based exchange, gained its first primary listings. This should be generally good for retail investors as more competition drives innovation and lower costs in markets. Retail investors have benefitted from competition in the past through lower commissions and better execution prices. Hidden costs of mutual funds and ETFs should decrease with the competition as well.

Earlier, I wrote:

Adding primary listings to a third exchange in the US will ultimately be good for the retail investor.

I think we should all be excited about this.