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The week of April 27

US market events that move the SPX book, in ET, with what usually followed each kind of event across the sessions in the free archive. The same calendar the terminal draws beside every session.

Expirations aheadOct 16Monthly opexin 4 daysOct 30End-of-month SPX expiryin 18 daysNov 20Monthly opexin 39 daysEvery expiry date by rule, years out, and the measured share of the book that expires with each →

Week of April 27

The week of April 27, 2026, ET

Mon 27

13:002-year note auction, $69B30 min after 13:00: 1.15x the tape's own vol, 325 days · all Treasury auction days
13:005-year note auction, $70B30 min after 13:00: 1.15x the tape's own vol, 325 days · all Treasury auction days
15:00Treasury financing estimates
dayCircuit breakers: L1 6,663.03 · L2 6,233.16 · L3 5,731.64

Tue 28

10:00Consumer confidence (Conference Board)30 min after 10:00: 0.95x the tape's own vol, 54 days · all consumer confidence days
13:007-year note auction, $44B30 min after 13:00: 1.15x the tape's own vol, 325 days · all Treasury auction days
dayCircuit breakers: L1 6,671.63 · L2 6,241.21 · L3 5,739.04
earnearnings: V (amc)

Wed 29

08:30Durable goods orderspre-openDurable goods m/m: actual 1.3% / prior -1.2%first 30 min: 1.07x the usual open, 110 days · all housing and durables days
08:30Housing startspre-openHousing starts: actual 1522K / prior 1346Kfirst 30 min: 0.87x the usual open, 100 days · all housing and durables days
08:30Quarterly refunding statementpre-openfirst 30 min: 0.9x the usual open, 18 days · all Treasury refunding days
09:30VIX settlementfirst 30 min: 0.9x the usual open, 232 days · all VIX settlement days
10:30EIA petroleum status30 min after 10:30: 1.0x the tape's own vol, 233 days · all EIA inventory days
14:00FOMC decisionhighFed funds: actual 3.75% / prior 3.75%hour after 14:00: 3.49x the tape's own vol, 37 days · the study · the forward ledger · all FOMC decision days
14:30FOMC press conferencehigh30 min after 14:30: 1.62x the tape's own vol, 37 days · the study
dayCircuit breakers: L1 6,638.76 · L2 6,210.45 · L3 5,710.76
earnearnings: AMZN, GOOGL, META, MSFT (amc)

Thu 30

08:30PCE inflation, income and spendingpre-openhighCore PCE m/m: actual 0.3% / prior 0.4%first 30 min: 1.1x the usual open, 53 days · all PCE days
08:30GDPpre-openGDP q/q: actual 1.5% / prior 2.1%first 30 min: 1.17x the usual open, 55 days · all GDP days
08:30Employment cost indexpre-openECI q/q: actual 0.9% / prior 0.9%
08:30Initial jobless claimspre-openClaims: actual 190K / prior 215Kfirst 30 min: 1.08x the usual open, 220 days · all jobless claims days
10:30EIA natural gas storage30 min after 10:30: 1.05x the tape's own vol, 225 days · all EIA inventory days
dayCircuit breakers: L1 6,636.53 · L2 6,208.36 · L3 5,708.84
dayEnd-of-month SPX expiryhow much of the book expires
earnearnings: LLY, MA (bmo) · AAPL (amc)

Fri 1

10:00ISM manufacturing PMI30 min after 10:00: 1.26x the tape's own vol, 53 days · all ISM days
dayCircuit breakers: L1 6,705.10 · L2 6,272.52 · L3 5,767.83
earnearnings: XOM (bmo)

Week of May 4

The week of May 4, 2026, ET

Mon 4

08:30Durable goods orderspre-openDurable goods m/m: actual 8.5% / prior 1.3%first 30 min: 1.07x the usual open, 110 days · all housing and durables days
14:00Senior loan officer survey (SLOOS)30 min after 14:00: 0.92x the tape's own vol, 18 days · all Fed speech and Beige Book days
dayCircuit breakers: L1 6,723.39 · L2 6,289.62 · L3 5,783.56

Tue 5

08:30Housing startspre-openHousing starts: actual 1414K / prior 1522Kfirst 30 min: 0.87x the usual open, 100 days · all housing and durables days
08:30Trade balancepre-openTrade balance: actual -52.9B / prior -53.7B
10:00ISM services PMI30 min after 10:00: 1.12x the tape's own vol, 51 days · all ISM days
10:00JOLTS job openingsOpenings: actual 6.89M / prior 6.92M30 min after 10:00: 1.23x the tape's own vol, 53 days · all JOLTS days
10:00New home salesNew home sales: actual 641K / prior 659K30 min after 10:00: 0.91x the tape's own vol, 51 days · all housing and durables days
dayCircuit breakers: L1 6,696.86 · L2 6,264.80 · L3 5,760.74

Wed 6

09:30VIX settlementfirst 30 min: 0.9x the usual open, 232 days · all VIX settlement days
10:30EIA petroleum status30 min after 10:30: 1.0x the tape's own vol, 233 days · all EIA inventory days
dayCircuit breakers: L1 6,751.35 · L2 6,315.78 · L3 5,807.62

Thu 7

08:30Initial jobless claimspre-openClaims: actual 199K / prior 190Kfirst 30 min: 1.08x the usual open, 220 days · all jobless claims days
08:30Productivity and costspre-openProductivity q/q: actual 0.4% / prior 0.2%
10:00Construction spendingConstruction m/m: actual -1.4% / prior 0.4%30 min after 10:00: 1.23x the tape's own vol, 50 days · all housing and durables days
10:30EIA natural gas storage30 min after 10:30: 1.05x the tape's own vol, 225 days · all EIA inventory days
dayCircuit breakers: L1 6,849.64 · L2 6,407.72 · L3 5,892.16

Fri 8

08:30Nonfarm payrollspre-openhighPayrolls: actual 148K / prior 214K; Unemployment rate: actual 4.3% / prior 4.3%first 30 min: 1.31x the usual open, 52 days · all payrolls days
10:00UMich consumer sentiment (preliminary)Sentiment: prior 49.8; 1y inflation: prior 4.7%; 5y inflation: prior 3.5%30 min after 10:00: 1.09x the tape's own vol, 54 days · all consumer sentiment days
dayCircuit breakers: L1 6,823.32 · L2 6,383.10 · L3 5,869.52

The calendar in three minutes

A walk through the panel, the measured lines, DEVELOP, the before/after ladder, the alerts and these pages, on the FOMC day of July 29. Watch on YouTube

How to read the line under an event

Each kind of event carries one measured line: over the window that follows it, how much the index moved relative to what the tape was already doing, averaged over every archived session that carried the event, against the same window on every other session. In the file's own words: range over the window / (trailing 30-min move x sqrt(minutes)), mean on event days over mean on other days. A pre-open release is read over the first 30 minutes of the session as a share of the opening print. The day count is the number of archived sessions behind the number, so a line on 36 days says less than one on 215.

The FOMC decision and the expirations link to the studies that took them apart; the decision also links to the forward ledger, where two rules fixed in advance are scored on every meeting after the fact. Every expiry-class date, years out rather than two weeks, is on the expiration calendar, with the measured share of the book that expires with each. Sources are linked on the event itself: the Fed's own calendar, FRED release dates, TreasuryDirect, the ISM report, the issuer's earnings page.

The terminal's dock opens the same week beside the session, marks in-session events on the time axis and the replay scrubber, and in the live stream counts down to the next one. The Lab reads the calendar as per-minute columns, so a rule can name "the first 15 minutes after CPI". The raw file is public JSON, keyed by ET date, rebuilt every six hours.

Measured history, not a forecast. The calendar is built from public schedules and can change when the source changes; nothing on this page is investment advice. See the Terms.