0. It’s a lottery ticket. To be realistic. Esp with the DOW down 300 today.
FWIW, I've done the math based on my percentage ownership, expected valuations, timeline to IPO, etc. The big unknown for me is dilution. I don't yet have a good sense of how much dilution I should expect as we move through rounds of funding into an IPO.
With no dilution my stock is worth $10mm (minus taxes, strike price, etc.)
With 10% dilution per round and 4 more funding rounds, it's now worth $6.5mm.
What matters now is how the company spends the money. Hopefully they spend it smartly and the value of the company increases 10x. Now your stock is worth $100k. You didn't get screwed by dilution, you got a $90k bonanza because the company was successful.