In practice
The dip comes mainly from management fees and organizational expenses charged on committed capital while little is yet invested, and from holding investments at cost early on. It shows up in net IRR and TVPI, not usually in gross figures. Subscription lines can shorten or flatten it. Credit and secondaries funds tend to show a shallower curve than venture or buyout funds.
An example
Round numbers, not a real fundSay a fund is down 5% after year two, flat after year four, and up 15% after year seven. Plotted, it looks like the letter J.
Why it matters
It tells new investors not to panic at early negative returns, and tells everyone to be suspicious when a young fund has none.
A definition, not advice; where usage varies the entry says so. Something wrong? Tell the desk.