Market Adjusted Implementation Shortfall 100, one, actually, adjusted, increase

jcole21

I've read Schweser and CFAI and just don't get the logic behind this one...

Vol 6 P 27 in CFAI

...so if the manager has an implementation shortfall cost of 87 bps and the stock was predicted to increase by 100 bps, does the -13 bps adjusted shortfall mean the manager actually added value?

exhausted. confused. thanks.