Weekly Pulse — Week of May 25–29, 2026

Saturday, 30 May 2026 — Weekly Pulse, week of 25–29 May 2026. Memorial Day Monday closed the cash session, so the week is four trading days: Tuesday 26 May through Friday 29 May.

The week in five lines

• SPY finished the four-session week at $756.48, up 1.45% from the 22 May close of $745.64 — the highest weekly close of the month.
• QQQ outperformed materially: +2.90% to $738.31 from $717.54, the best weekly print since the April vol regime broke.
• VIX collapsed −8.26% to 15.32 from 16.70 — through the 16 handle on Wednesday, through 15.50 by Friday close.
• NVDA went the other way: −1.95% on the week to $211.14 from $215.33, with the bulk of the damage on Friday’s −1.45% session and a roughly $3.5B aggregate dark-print distribution at $211.14 into the close.
• The week’s headline off-exchange flow ran through allocator wrappers — a $2.21B EFV print Thursday, ~$3.7B in IVV at $758.29, $1.82B IUSB, $836M IEMG — pointing to multi-asset rebalance, not single-name chasing.

What worked

Long the index trend. Both SPY and QQQ delivered a clean week with low intraday volatility and constructive closes. The QQQ outperformance to SPY (+2.90% versus +1.45%) is notable specifically because it came without NVDA’s help — breadth carried the tape. Cyclical / defensive ratios stayed at the upper-99th-percentile we tagged Tuesday and Wednesday, the credit complex held (HY OAS roughly 2.72–2.74% all week), and the volatility-risk-premium dynamic worked in favor of theta-sellers as VIX moved from 16.70 to 15.32 without a single back-up of consequence.

The international value rotation we flagged Thursday is the cleanest single read of the week. EFV’s $2.21B print is the biggest non-US-equity block we have on record this quarter; pair it with the IUSB $1.82B in the same window and the IEMG $836M-plus prints and the picture is a multi-asset model adding weight across geographies and asset classes. That is durable flow. The IVV strip clearing at $758.29 above spot is the US-equity confirmation — allocators paid up, not down.

PLTR was the cleanest single-name long. Three consecutive sessions of ascending call accumulation across July and September 155 strikes, with chain follow-through and no offsetting put pressure, is exactly the structure that pays off in a trending tape.

What didn’t

NVDA leadership. The stock finished −1.95% on the week against a +2.90% QQQ, and the dispersion widened every session. Friday’s late-tape distribution at $211.14 — eight separate prints over $400M in the final hour and post-close, aggregating to roughly $3.5B in same-price size — was the cleanest evidence the institutional book is no longer adding here. It is not a panic; the bid that absorbed it was patient. But for the trend traders who have been long mega-cap semis as the leadership trade, the week is a notice. The 50-day on NVDA sits at roughly $208; if Monday loses $211, that is the next reference.

Memory pre-earnings positioning. MU absorbed nine-figure dark-pool prints in size all week (Friday’s $542M / $485M / $433M cluster at $971 stands out), and the options chain ran bearish through the $920–$1000 strikes into the 24 June print. SNDK showed the same signature at $1,694.98 with $2.4M bid for 1280 puts on Friday. AVGO is the closer-dated tell — January 2027 puts at the 450 strike took $2.6M on the ask ahead of 3 June earnings. That is a hedging book, not a momentum one.

Volatility carry as a hedge. Anyone long VIX into the week paid for it: a −8% move with no opportunity to monetize on a sustained back-up means the term-structure short was the only viable vol expression. We expect that to continue until something forces a re-rate.

Flow + dark-pool standouts

MPI + regime trajectory

The formal MPI snapshots through the week tell a steady story: 65 on Tuesday’s 26 May composite (Bull · early), 66 on Wednesday’s 27 May print (Bull · early), 70 on the morning recompute that ran post-Wednesday close (Bull, the early qualifier dropped). The sub-reads were stable to better all week — trend score 68 → 70, breadth 90 → 96 → 97, credit 86 → 87, sentiment 59 → 61. The HMM bull-state confidence ran 99% through Wednesday before sliding to a sideways read on the latest recompute as breadth percentiles stretched into the upper-98s. The composite’s high confidence (85% CI 65–75 on the latest) sits comfortably above the bull/sideways threshold.

Two housekeeping notes on the trajectory. The post-close MPI pipeline did not fire after the 28 May or 29 May session — the freshest formal print we have for the strip is the 27 May close composite at 70 / Bull, with the spy_spot input of $750.46 confirming the data lineage. We expect the pipeline to roll forward over the weekend. Second, the 23 May Weekly Pulse (id 2762) was filed under the Daily Pulse category in error during publish; this is housekeeping for the archive, not an editorial correction.

What to watch into next week

• NVDA $211 → $208 — Friday’s pin, then the 50-day. Loss of $208 changes the dispersion read materially.
• SPY $755 — the close the tape defended Thursday and Friday. Acceptance keeps the trend; rejection forces a re-rate.
• QQQ $740 — Friday’s high water and the next round number. A breakout extension would need to come without NVDA cooperation.
• AVGO earnings — Tuesday 3 June. The January 2027 put bid is already in place; the question is which side gets surprised.
• VIX 15.00 → 14 — if Monday accepts a 14-handle, dealer gamma stays supportive into AVGO and the next leg.
• 10-year yield 4.50% — quiet all week and the macro line that matters most. Watch the next auction window.
• ORCL into 10 June earnings — first pre-print positioning showed up in the chain Friday; track for follow-through.

The set-up

The week’s profile is a tape where the broad market is doing exactly what we want it to do — higher highs, lower vol, allocator wrappers absorbing size — while one of the four largest weights in those wrappers is being distributed at the close. That divergence has a shelf life. Either breadth keeps carrying and NVDA consolidates without breaking, in which case the dispersion compresses on its own; or NVDA pulls breadth back toward it, in which case the index makes the bigger move next. The volatility tape is voting for the first read. The dark prints in NVDA and MU are reminding us that the second read is not yet ruled out. We carry the trend into the new week with the same discipline: long the index, lighter on mega-cap concentration, respect the levels the institutional book just paid for, and pay attention to AVGO Tuesday.

Method note

Weekly Pulse synthesizes the week’s end-of-day options flow, off-exchange block prints, and our proprietary market posture index into a single read. The composite signal weights multiple cross-asset and cross-market inputs and adjusts to regime context; specific weights, lookbacks, and transition logic are not disclosed. Flow attribution is descriptive, not predictive — volume can reflect opens, closes, rolls, or hedges, and open-interest changes require next-session confirmation. Flow and dark-pool data sourced from our analytical pipeline. MPI score and regime classifier are our internal composite; weekly synthesis is AI-assisted from those inputs.

This is research, not advice. Position sizing, risk management, and exit discipline are yours.