Remember you can only check Cornerstone fund NAV discounts or premiums accurately after the number is updated on Fridays. Nowadays most large funds update daily, or continuously perhaps. Not Cornerstone!
Today the market is up a bit but CLM is down. It's just not a very good fund... and incredibly gimmicky. I've seen CEF's selling at discounts of 35% or more in deep bear markets years ago.
Market Data 
Markets 
AI
