MOUNTAIN VIEW, Calif. — Bake sales and car washes?

Not for one Silicon Valley parochial high school that hit it big this week and, by doing so, highlighted anew gaping economic disparities in the region.

St. Francis High School in Mountain View parlayed a $15,000 investment into a windfall of at least $24 million, capitalizing on a unique venture capital fund set up by the school’s investment-savvy parents.

The fund paid off when the company began selling shares to the public Thursday and the school sold about 1.4 million of the 2.1 million shares at $17 each. It’s holding the remaining 700,000 shares, which were valued at about $19 million Friday.

“Silicon Valley is a pretty amazing place to live,” school President Simon Chiu said. “This obviously couldn’t have happened anywhere else.”

St. Francis High School launched the fund in 1990 at the urging of two of the many venture capitalists with children attending the school. The fund’s aim is to tag along with deep-pocketed investors when they make big bets on startup companies. The school takes a small sliver of a venture capitalist’s bigger investment in a startup company.

Chiu and other educators say they know of no other school with a similar fundraising scheme.

“We don’t have the bandwidth to follow the stock market,” said Amika Guillaume, principal of the East Palo Alto Academy, which is in one of the poorest cities in Northern California. “It’s tough enough to keep kids on track to graduate.”

Few, if any other schools, have that sort of advantage, said Stephen Andriole, a professor of business, accountancy and information systems at the Villanova School of Business in Pennsylvania.

The Snap Inc. investment began at the kitchen table of venture capitalist Barry Eggers.

Eggers said he came home from work one day in 2015 and found his children and their St. Francis schoolmates sitting at the kitchen table, giggling over the new Snapchat app, which allows users to easily exchange messages with videos and photographs. Best of all, the images automatically destruct after a few minutes.

Eggers researched the company and negotiated a $500,000 investment with the company founders, including a $15,000 contribution from the school.

“It all started at my kitchen table with my kids,” Eggers said. “Only in Silicon Valley.”