17 August 2026 — EOD read. Monday gave back Friday’s close in both majors, and the giveback happened at the wrong end of the range: SPY finished at $772.67, sixteen cents off its own session low of $772.51 after opening at $776.18. Volatility woke up a little — VIX closed 15.19 against 14.25 Friday — while the biggest money on the tape went off in size after the bell rather than during it.
- Both majors closed lower and SPY closed on its session low.
- Index put buying picked up; the single-name tape stayed split.
- SPY $772.51 is the level to watch into Tuesday.
What happened
SPY closed at $772.67, down $3.67 or 0.47% from Friday’s $776.34, and the shape of the day matters more than the size: the high came at $776.775 in the first hour and the close came within a rounding error of the $772.51 low. QQQ was gentler, finishing $729.87 against $731.07, a 0.16% giveback, with a low of $729.27. NVDA was effectively unchanged at $225.01 from $225.16. VIX at 15.19 is up from 14.25 but still sits near the bottom of its one-year range.
Market-wide, the day’s options tape ran 33.87M calls against 27.77M puts for a 0.82 put/call on volume, and $19.30B in call premium against $13.57B in put premium — on the surface, a normal-looking day. The index ETFs told a different story. SPY ran 5.67M puts against 4.27M calls, a 1.33 put/call, with net premium at negative $47.4M. QQQ ran 3.56M puts against 2.99M calls, a 1.19 put/call — same direction, less intensity, and worth separating rather than lumping. What we flagged in flow was that the put side in the index complex was where the incremental money went, while broad-market premium still tilted to calls.
Yesterday’s radar — OI confirm
Yesterday’s flagged prints, checked against this morning’s open-interest update — the tape’s own answer to whether the flow was real positioning. Thresholds: ≥40% of flagged volume became new OI = confirmed; 10–40% = partial; under 10% = not confirmed.
| Contract | Flagged | OI change overnight | Verdict |
|---|---|---|---|
| HPE Nov $70 calls | 4,011 vol | +3,821 (95% of vol) | Confirmed opening |
| SLV Sep $63 calls | 13,076 vol | +12,326 (94%) | Confirmed opening |
| CRM Dec $195 puts | 614 vol | +480 (78%) | Confirmed opening |
| CRDO Dec $280 calls | 854 vol | +659 (77%) | Confirmed opening |
| MU Jan 2027 $1,300 calls | 1,017 vol | +768 (76%) | Confirmed opening |
| QQQ Dec $695 puts | 924 vol | +680 (74%) | Confirmed opening |
| IWM Oct $280 puts | 13,050 vol | +8,901 (68%) | Confirmed opening |
| BE Nov $240 calls | 491 vol | +174 (35%) | Partially confirmed |
| QQQ Aug 31 $735 calls | 11,558 vol | +765 (7%) | Not confirmed |
Seven of nine became real positioning. The two that did not were both on the upside: the near-dated QQQ call chase turned over almost entirely intraday, and the BE calls only half-stuck. Every downside structure we flagged Friday — the IWM October puts, the QQQ December puts, the CRM December puts — is now open interest.
Why it matters
Our read: the asymmetry in Friday’s confirmation is the more useful piece of information than Monday’s half-percent. Downside structures with September, October, and December dating stuck as open interest; the short-dated upside did not. That is what hedging looks like when it is being put on deliberately rather than chased, and it lines up with what printed today — SPY August 28 $750 puts trading at more than three times their existing open interest, and September IWM puts changing hands in size on both the bid and the ask.
The internal composite still reads Bull at 73, and nothing on today’s tape argues with that classification: a 0.47% giveback with VIX at 15 is noise inside a trend, not a break of one. What is different is the cost of insurance. SPY’s IV rank sits near 10 while the index put/call ran 1.33 — the demand for downside is showing up in volume, not yet in price. Our read is that the mismatch is the thing to track, not the half-percent.
What to watch into Tuesday
- SPY $772.51 — today’s low, and effectively today’s close. A close below it would mark the first consecutive lower low of this leg; $776.34 is the reference on the other side as Friday’s close.
- QQQ $729.27 — today’s low. The Nasdaq proxy gave back a quarter of what SPY did, and that spread either closes or persists.
- VIX 15.19 — up 6.6% on the day from a one-year-low neighbourhood. A move through 16 would be the first time this month the index has priced meaningfully more than realised.
- NVDA into 26 August — earnings are nine days out and the September put strikes at $220 and $230 both saw ask-side prints today. Whether those become open interest is tomorrow’s question.
- The dark-pool close — MSFT printed roughly $2.44B across four off-exchange blocks at $480.35 and NVDA roughly $1.76B at $225.01, almost all of it in the closing window rather than intraday.
- SPY Aug 28 $750 puts — 15,811 traded against 5,017 open. The OI update is what tells us whether that was new insurance or a roll.
Names on our radar
Every row below is frozen at publication and scored mechanically in the Accountability Ledger at +5 and +21 sessions — misses stay on the page. Options prints are checked against the next morning’s open-interest update in the following session’s post.
| Ticker | What printed | Read |
|---|---|---|
| SPY | Aug 28 $750 puts — 15,811 vol against 5,017 OI (3.2x), $1.61M, mostly ask-side across 79 fills | Two-week downside in size at a strike $22 below spot. Unconfirmed as new positioning until tomorrow’s OI update. |
| IWM | Sep 18 $289 puts 30,902 vol vs 26,298 OI, $1.07M all ask-side; $288 puts $1.06M all bid-side | Both sides of adjacent strikes in the same expiry. The small-cap hedge is being adjusted, not simply added to. |
| NVDA | Sep 18 $230 puts $1.34M and $220 puts $1.00M, both ask-side, nine days before earnings | Downside dating past the 26 August print. The stock itself did nothing today, closing $225.01. |
| TLT | Aug 21 $85 puts — floor trade, 13,013 vol vs 12,436 OI, $3.79M ask-side | Largest single-name premium on the flagged tape, and it was in duration, not equities. |
| SNDK | Aug 21 $1,800 calls 12,470 vol vs 2,259 OI (5.5x) bid-side; Oct $1,640 calls $3.67M ask-side sweep | Near-dated calls sold into, longer-dated calls bought. A structure, not a direction. |
| MU | Aug 21 $1,000 calls 11,876 vol vs 10,820 OI ask-side; Jan 2028 $1,300 calls $5.23M bid-side | Friday’s MU January 2027 calls confirmed at 76%. Today the long-dated flow came across on the bid. |
| MSFT | Four off-exchange blocks totalling ~$2.44B at $480.35, including 2,020,002 shares in one print | Largest off-exchange name of the session by a wide margin, concentrated at the close. |
| RDDT | Four dark-pool prints totalling ~$1.12B at $164.50, on a name whose 30-day average volume is 6.7M shares | Block size relative to normal turnover is the observation here, not the price. |
| NBIS | Feb 2027 $250 puts — 311 vol against 21 OI (14.8x), $1.92M, sweep | Volume at nearly fifteen times open interest in a six-month put. Thin strike, real premium. |
| PLTR | Dec 2027 $185 calls — 2,345 vol vs 731 OI (3.2x), $1.01M, sweep, mostly bid-side | Sixteen-month upside crossing on the bid. The dating is the notable part. |
The set-up
Monday was a small down day that closed badly and a large hedging day that closed loudly. The desk-flow tape said the same thing twice: index put volume ran ahead of calls in both majors while the biggest off-exchange money — MSFT at $2.44B, NVDA at $1.76B, V above $1.69B — went off in the closing window at flat prices. Our read: the confirmed-versus-not split from Friday is the dominant tell, because it shows the downside being built to hold and the upside being rented by the day. SPY $772.51 and QQQ $729.27 are the levels that carry into Tuesday, and the September and October put open interest that stuck on Friday is now sitting there regardless of which way the next session resolves.
Method note
Flow and dark-pool data sourced from Unusual Whales. MPI score and regime classifier are our internal composite; daily synthesis is AI-assisted from those inputs.
Volume-over-OI activity is unconfirmed as new positioning until the next morning’s open-interest update; confirmations are published in the following session’s post. Index and single-name closes, put/call ratios, and premium figures are end-of-day values for 17 August 2026. The MPI snapshot in the strip above is keyed to the 14 August 2026 close and is labelled as such.
This is research, not advice. Nothing here is a recommendation to buy, sell, or hold any security.
AZTMM HLDGS LLC is not a registered broker-dealer, investment adviser, or FINRA member. All content is retrospective research published for general circulation — not personalized advice, not trade signals. Options involve substantial risk, including losses that may exceed the initial investment. Full disclaimer.
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