Closed Fund
  
The fund no longer exists. Or, rather, new investors can no longer invest in it.
Why? Either because the fund did so poorly that they're trying to liquidate whatever remaining assets they have and move on to their bank teller jobs in Nairobi...or the fund was so successful and got to be so big that the cash they need to invest is now limited by the opportunities available to them.
The famous Fidelity Magellan fund, once the largest fund in the world, kind of closed in the same way, because they got to be so big they had a hard time even trying to beat the market. So that fund closed to new investors for a while.