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Invesaro publishes investment theses and settles them against the market in public: with a date, a basket of companies and a verdict.

Investment thesis

The bond market's real December deadline is not the Fed: US Treasury trading gets forced into a clearing house

LivePublished September 10, 2026165-day horizonregulation
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In short

  1. What is happening
    The 10-year yield jumped after the Treasury's buyback plan disappointed investors
  2. Why it matters
    From 31 December US Treasury cash trades must clear centrally, repo follows in June: the fees and the margin re-route to a handful of plumbing owners.
  3. What must hold
    Assumptions are statements that must stay true for the thesis to make sense.
    Assumptions: 5. See the assumptions
  4. When is the verdict
    The horizon is the time we give a thesis. That many days after publication we settle it: we compare the basket of companies with the market benchmark and give a verdict.
    February 22, 2027, 165 days after publication
  5. Our score at publication
    A score from 0 to 100 given on the day of publication, before the market has verified anything. On the results page we check in public whether higher-scored theses do better.
Basket return
-1.0%
equal weight, since publication
The market over the same window
-0.7%
benchmark for this basket
Edge over the market
-0.3%
in percentage points

Companies in the basket

The argument

Markets spent this week arguing about the 10-year yield and a buyback programme that underwhelmed. The more consequential date in the Treasury market is not a Fed meeting: it is 31 December 2026, when the SEC's clearing rule requires eligible cash US Treasury transactions to be submitted to a central counterparty, with eligible repo following on 30 June 2027. The rule was adopted in December 2023 and the compliance dates were pushed back by a year in early 2025. That extension is why almost nobody is positioned for it, and why it now lands inside a normal investment horizon.

The mechanics matter more than the headline. Today a very large share of US Treasury repo, well over $2tn a day, is negotiated bilaterally between a dealer and a client and never touches a clearing house. Under the mandate that trade has to arrive at a CCP, which means it needs a clearing member or a sponsor, a legal agreement, an onboarding project, daily margin, and somewhere to source and move the collateral that margin is made of. None of that exists yet for thousands of hedge funds, money market funds, insurers and non-bank dealers. The record size of the Treasury float, the same size that makes buyback plans a talking point, sets the volume that flows through this new pipe every night.

What this thesis rests on

Each one is a statement that has to be true. We go back to every live thesis on a schedule and check these against public sources, so each leg carries either what we found or the date we look next.

Archive: reviews of this thesis are paused. Last review September 25, 2026.

  1. The SEC does not extend the 31 December 2026 compliance date for central clearing of eligible cash US Treasury transactions.

    regulatory · Supported

    A source confirms this · September 25, 2026

    SEC Commissioner Mark Uyeda, remarks at the 2026 US Treasury Market Conference on 22 September 2026: "It is critical that market participants maintain momentum on their implementation efforts as the SEC does not currently intend to extend these deadlines," restating the cash Treasury compliance date as 31 December 2026.

    See the source
  2. BNY's clearance and collateral management fee revenue grows at least 5% year over year in both the fourth quarter of 2026 and the first quarter of 2027.

    financial · Open

    Checked September 25, 2026, nothing published either way

  3. Tradeweb reports repo average daily volume at least 10% higher year over year for December 2026.

    financial · Open

    Checked September 25, 2026, nothing published either way

  4. ICE begins live clearing of US Treasury cash or repo transactions through ICE Clear Credit before 30 June 2027.

    competitive · Open

    Checked September 25, 2026, nothing published either way

  5. Broadridge's Global Technology and Operations segment revenue grows at least 5% year over year in the two quarters after publication.

    operational · Open

    Checked September 25, 2026, nothing published either way

Show the causal chain step by step
  1. Record Treasury float financed nightly in repo
  2. SEC clearing mandate hits 31 December 2026
  3. Bilateral repo and cash trades routed to a CCP
  4. Buy side onboards to sponsored and agent clearing
  5. Initial margin and collateral mobilisation demand jumps
  6. Clearing, settlement and venue fee pool steps up
  7. Collateral and post-trade owners (BNY, Broadridge)
  8. Electronic venues and challenger CCP (Tradeweb, ICE)

This thesis, over time

What has happened since publication. Every entry is computed as of its own date, from price history.

September 25, 2026

Review: 1 of 5 assumptions confirmed

We went back to this thesis on day 15 of 165 and checked each of its 5 assumptions against public sources. Confirmed by the sources: 1. No news either way: 4. The equal-weight basket stands at -1.0% since publication day. The benchmark (.INX) returned -0.7% over the same window, so the basket trails its market by 0.3 percentage points. 150 days remain until the verdict.

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This is analysis, not investment advice and not a recommendation to buy or sell anything. We publish it and track it in public, mistakes included. Any decision is yours and yours alone.