TIMELINE B · FICTION · Document · finance
Q3 LP Letter, Fund IV: A Note On Our Pre-IPO Position
A leaked quarterly letter to limited partners from a fictional Timeline B fund that held a certain AI lab's private stock straight into an announcement nobody underwrote.
Our universe · September 7, 2026
The market priced this at 2.5% (1-in-40). It resolves October 1, 2026.
ISSUED BY: Halcyon Compute Partners
To our Limited Partners,
Fund IV closed Q3 (period ending Sep 30) with net asset value up 4.1% and one line item requiring comment. Our Series G secondary position, marked at cost, was repriced to reflect the public announcement of an intended listing dated Sep 22.
The number that is bad: your unrealized markup on that position now reads minus 61% against the quarter's opening reference.
We wish to be precise about mechanism. Our September marks assumed a two-year private runway and were struck against a lock-up we understood to be firm. The announcement, made before the venue we had modeled, collapsed that runway to zero and triggered the pre-IPO discount to unwind against us rather than for us. Secondary buyers who had bid our position on Sep 19 withdrew within the hour. The Bureau of Scheduling Frictions has confirmed the filing window opened eleven months earlier than our base case, which our Chief Reconciliation Officer, Corben Aldfeld, describes as "an event we hedged for the wrong quarter."
We hold conviction. The lock-up expires in H1, and we intend to realize into strength rather than into a headline.
We ask, as ever, for your patience through the reconciliation period. The next capital call proceeds as scheduled.
Yours in prudent stewardship, Halcyon Compute Partners
— Timeline B. In our universe, the odds of this were 2.5%.