Goldman Sachs Warns of Rising Macro Tail Risks, Recommends Buying Correlation Protection
Taylor Wilson
Three Goldman Sachs traders warn in their latest *Flow of Funds* report that the probability of a systemic correlation spike is rising, and recommend going long correlation as a tail-risk hedge; meanwhile, August fund flows look seasonally weak, leaving buybacks as the most reliable bid under US equities.
Have institutions really de-risked?
Markets saw notable momentum and position unwinds over recent weeks, but Goldman's data show institutional de-risking remains limited overall.
Global gross exposure sits at the 65th percentile on a one-year lookback and the 93rd percentile on a five-year lookback.
This means → relative to the past year, positioning is only moderately elevated. But on a five-year horizon, institutions are still in historically high-exposure territory — far from "travelling light."
What exactly is Goldman worried about?
One-month implied correlation on the S&P 500 — a gauge of whether all stocks tend to move together — edged higher during the recent selloff, while single-stock volatility pulled back from historic highs.
The unusual spread between single-stock vol and index vol narrowed accordingly.
In plain terms = individual stocks used to "go their own way"; now there are early signs of a shift toward moving in lockstep. Goldman calls a systemic shock that forces everything to correlate a "corr1 event" and sees its probability rising.
The specific recommendation: go long correlation — sell single-stock variance swaps and buy index variance swaps (a reverse-dispersion trade). The bet is that if a systemic shock hits, index vol will spike harder than single-stock vol.
Where is the money coming from — and going — in August?
Historical data show August ties with May as the worst month for equity mutual-fund and ETF net flows.
Mutual funds tend to hold cash ahead of midterm elections and redeploy afterward; foreign investors also show a pattern of modest selling in the month before an election.
Retail activity is weak too: daily retail trading volume as a share of market cap is more than 3 percentage points below the 2021–2025 average this month, and Goldman expects this gap to persist into August.
This means → geopolitical concerns, rising energy prices, and monetary-policy uncertainty are stacking up, setting the stage for a collective buyer's strike in August.
Who is holding the market up?
Roughly 31% of S&P 500 constituents are currently in open buyback windows; that figure rises to about 53% by next weekend and past 90% by mid-August.
This reflects the post-earnings blackout period ending for more companies — buybacks are becoming the most stable, most reliable source of demand for US equities right now.
In plain terms = every other buyer is sitting on the sidelines. The only consistent bid is companies buying back their own stock.
So where does the US market go from here?
Goldman sees a range-bound market in the near term: buyback demand will be offset by seasonal fund outflows, and institutional aggression is limited.
Dealers hold positive gamma on the upside — meaning they automatically sell into rallies, capping gains. Thematic trades will have a muted net impact, but intraday volatility will persist.
This means → whether the market can hold the bottom of the range during August's thinnest liquidity window will be the key test of whether this de-leveraging cycle has truly cleared.
Content is for reference only, not financial advice.