Alphatica@alphaticaio
Net Equity Supply Just Flipped Positive for the First Time in 18 Months.
We estimate a ~$114 Billion Per Quarter Was Holding This Market Up
For most of 2025, corporations bought back more stock than they issued. Not by a little. By a factor of two.
We estimate roughly ~$114 billion per quarter in actual share retirements across approximately 504 companies. That is not authorizations. That is shares permanently removed from the market, verified.
Against that, new equity issuance averaged $55-70 billion per quarter. The math was simple: more shares leaving than entering. Every quarter. For five consecutive quarters.
That is the structural bid no one talks about. It does not depend on sentiment or flows. It shows up every quarter and shrinks the float. It is the reason the market kept going up even when every macro indicator said it should not.
The quarterly net equity supply since Q1 2025:
Q1 2025: -$61.9 billion (buyback dominant)
Q2 2025: -$46.4 billion
Q3 2025: -$60.3 billion
Q4 2025: -$47.9 billion
Q1 2026: -$43.6 billion
Five consecutive quarters of net share reduction. The buyback machine absorbed everything the capital markets created and removed tens of billions more on top.
Then Q2 2026 happened.
Gross equity supply surged to $264.6 billion in a single quarter. Three deals drove it: Alphabet $84.75 billion, SpaceX $75 billion, Super Micro $7 billion. All three raised equity to fund AI infrastructure.
For the first time in 18 months, supply overwhelmed the buyback bid. Net equity supply flipped to +$150 billion. The structural buyer that powered the rally was outmatched.
The question is whether Q2 2026 was an event or a regime change.
If it was an event, the buyback machine reasserts itself in Q3 and the structural bid returns. The three mega-deals were generational, not repeatable.
If it was a regime change, the AI infrastructure buildout creates a sustained wave of equity issuance that permanently shifts the supply-demand balance. If every AI company follows the Alphabet playbook of raising equity at scale to fund capex, the buyback bid is no longer the dominant force.
At 65.7% equity allocation and 44% rate hike probability, the pool of available buyers is already stretched. The market does not need to crash for this to matter. It needs new buyers to replace the structural bid that just disappeared.
The easy part of this rally ended the day the supply wave started.
$SPY $QQQ $SPCX
