Prominent Silicon Valley accelerator Y Combinator today submitted a regulatory filing for a new outfit named Y Combinator Continuity Fund I, L.P.

The filing doesn’t provide very much information. There’s already a lot of speculation about the new activity. Y Combinator itself declined to comment. But one thing is certain: Going forward, Y Combinator will be doing more investing.

The fund is officially designated as a venture capital fund in the filing.

Historically Y Combinator has poured seed money into startups — generally $120,000 in exchange for a 7 percent equity stake.

A name like “Continuity” suggests that the fund will provide money for Y Combinator startups in later stages. There are several promising Y Combinator startups into which the accelerator could invest further, including Airbnb, Dropbox, Instacart, Stripe, and Zenefits.