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Why this page exists: KLAC has no documented material pre-announcement habit — the edge here is the earnings-cycle statistics themselves (drift, gap, reaction, follow-through) and how they vary by regime. This page measures every earnings cycle — drift into the report, the gap, the reaction, the follow-through — alongside the NVDA / SPY / VIX regime it happened in, and uses the documented pre-announcement history to project when the next pre-announcement is most likely to land. All numbers are computed from real daily prices, real earnings dates, our own ATM-straddle expected moves and stored option chains, and a curated registry of real press releases. Nothing is simulated.

Next earnings & predicted pre-announcement window

Tuesday, July 28, 2026
Next confirmed KLAC earnings date (source: exchange calendar).

Current regime & edge read

As of 2026-07-24: NVDA Strong Down (nan% 20d), SPY Strong Down (nan%), SOX Mild Down, VIX 18.7 (Medium (15-25)).
EdgeScore +0.29 (Neutral / Mixed)
ComponentCurrent bucketHist. mean reactionN
NVDA regimeStrong Down expl.+1.8%4
VIX levelMedium (15-25)+0.1%27
Earnings weekdayTuesday expl.+1.6%4
EdgeScore = mean of the matching buckets' historical mean earnings reactions, normalized by the average absolute reaction (±1 cap). Transparent and purely historical — not a prediction model.
Cycles
46
Avg reaction
+0.2%
Median reaction
+0.8%
Avg |move|
4.0%
Up rate
57%
Avg drift T-20
+3.4%
Event-window statistics (all cycles)
WindowNMeanMedianStdMin / MaxWin%
Drift T-20 → report46+3.4%+2.1%10.5-16.8% / +35.5%63%
Drift T-5 → report46+2.0%+0.9%5.9-9.3% / +21.7%61%
Overnight gap46-0.1%-0.3%3.6-8.6% / +7.6%41%
Reaction day (close→close)46+0.2%+0.8%5.0-15.2% / +10.5%57%
Follow-through +5d46+0.8%+1.0%3.5-7.0% / +10.8%65%
Follow-through +20d46+3.8%+1.2%8.4-10.4% / +25.3%61%
Max favorable excursion (20d)46+9.2%+7.3%9.1-5.9% / +32.6%87%
Max adverse excursion (20d)46-6.0%-4.3%6.8-23.7% / +3.7%20%
Reaction by regime & calendar

Reaction by report weekday

BucketNMeanMedianStdWin%
Monday n<105+3.6%+7.3%6.260%
Tuesday n<104+1.6%+2.7%3.975%
Wednesday13+0.7%+0.8%3.662%
Thursday24-0.9%-0.1%5.250%

Reaction by NVDA 20-day regime

BucketNMeanMedianStdWin%
Mild Down n<107+2.3%+3.5%4.371%
Strong Down n<104+1.8%+1.9%4.175%
Mild Up n<107+1.0%+0.5%5.257%
Sideways12-0.3%+1.1%6.567%
Strong Up16-1.0%-1.5%3.538%

Reaction by VIX level

BucketNMeanMedianStdWin%
High (>25) n<105+1.9%+1.3%3.680%
Low (<15)14+0.1%-0.2%4.550%
Medium (15-25)27+0.1%+0.9%5.556%

Drift T-20 by NVDA regime

BucketNMeanMedianStdWin%
Strong Up16+7.6%+6.2%10.581%
Sideways12+3.9%+0.3%11.350%
Mild Up n<107+2.7%+3.6%1.986%
Mild Down n<107+2.4%+0.2%7.657%
Strong Down n<104-12.4%-13.2%4.10%
Documented pre-announcements
No documented pre-announcements in the registry.
Expected move vs actual (our nightly ATM data)
Report dateExpected moveActual reactionGapActual / EM
2026-04-2911.5%-3.6%-7.1%0.32x
2026-01-2910.5%-15.2%-8.6%1.45x
Only cycles inside our own options-database coverage window are shown — we do not fabricate historical implied volatility. Coverage grows each quarter.
Options strategy P&L — priced from our own chains
No earnings cycles inside our chain coverage window yet — this section fills in automatically as coverage grows.
Every earnings cycle
ReportPreDrift20GapReact+5d+20dMFEMAEHV20NVDA / VIXSurprise
2026-04-29
Wednesday
+23.4%-7.1%-3.6%+3.8%+10.3%+13.6%-9.4%44%Strong Up / Medium (15-25)+2%
2026-01-29
Thursday
+35.5%-8.6%-15.2%-6.8%+6.9%-5.9%-23.7%51%Sideways / Medium (15-25)+1%
2025-10-29
Wednesday
+9.4%-0.1%-1.7%+1.0%-4.4%+4.0%-13.1%51%Strong Up / Medium (15-25)+2%
2025-07-31
Thursday
-4.6%-2.6%+0.9%+2.9%+1.1%+9.1%-2.7%28%Strong Up / Medium (15-25)+10%
2025-04-30
Wednesday
1+3.0%-1.9%-3.8%+2.7%+14.7%+15.4%-4.0%84%Sideways / Medium (15-25)+4%
2025-01-30
Thursday
+17.2%+2.2%-0.6%+3.2%-3.8%+7.0%-6.6%39%Mild Down / Medium (15-25)+6%
2024-10-30
Wednesday
1-11.0%-2.0%-3.7%+0.5%-4.8%+0.4%-11.7%61%Strong Up / Medium (15-25)+4%
2024-07-24
Wednesday
-7.6%+1.6%+0.9%+7.9%+8.6%+11.3%-14.3%54%Mild Down / Medium (15-25)+8%
2024-04-25
Thursday
-3.4%+1.5%+5.0%-3.4%+8.6%+17.7%-1.6%35%Mild Down / Medium (15-25)+4%
2024-01-25
Thursday
+8.5%-2.8%-6.6%-0.1%+11.8%+7.4%-9.3%32%Strong Up / Low (<15)+5%
2023-10-25
Wednesday
+2.1%+0.8%+0.8%+4.0%+21.3%+24.1%-0.6%30%Sideways / Medium (15-25)+7%
2023-07-27
Thursday
+1.7%+3.7%+5.9%-1.7%-6.5%+7.2%-2.7%37%Strong Up / Low (<15)+11%
2023-04-26
Wednesday
-3.7%+7.4%+7.6%-1.7%+6.7%+20.6%+3.3%33%Sideways / Medium (15-25)+4%
2023-01-26
Thursday
+15.5%-5.5%-6.8%+3.7%-4.6%-1.6%-12.5%33%Strong Up / Medium (15-25)+4%
2022-10-26
Wednesday
-2.9%+3.1%+0.8%+1.1%+25.3%+28.5%-0.7%51%Sideways / High (>25)+13%
2022-07-28
Thursday
+15.4%-2.1%+3.7%+3.6%-1.4%+7.8%-3.9%46%Strong Up / Medium (15-25)+6%
2022-04-28
Thursday
-11.0%-0.3%-4.1%+4.4%+11.0%+6.9%-7.9%49%Strong Down / High (>25)+6%
2022-01-27
Thursday
-16.8%-2.6%+1.3%+1.9%-2.2%+12.2%-8.8%55%Strong Down / High (>25)+3%
2021-10-27
Wednesday
+1.6%+7.6%+4.3%+10.8%+16.6%+25.8%+3.4%19%Strong Up / Medium (15-25)+3%
2021-07-29
Thursday
-1.5%+6.3%+9.0%+1.6%-3.8%+11.7%-1.5%34%Sideways / Medium (15-25)+11%
2021-04-29
Thursday
-1.2%-3.5%-3.4%+0.2%+0.7%-0.5%-12.4%34%Strong Up / Medium (15-25)+6%
2021-02-03
Wednesday
+7.7%+0.8%+2.8%+1.1%-2.0%+19.5%-1.1%48%Sideways / Medium (15-25)+1%
2020-10-28
Wednesday
-1.6%-0.1%+6.0%+9.2%+23.8%+32.6%-0.2%34%Mild Down / High (>25)+9%
2020-08-03
Monday
+2.0%-3.6%-1.3%-0.9%+0.6%+5.7%-4.5%41%Strong Up / Medium (15-25)+13%
2020-05-05
Tuesday
1+4.8%+5.0%+5.3%+1.1%+14.1%+20.7%+1.8%66%Mild Up / High (>25)+5%
2020-02-04
Tuesday
+2.1%-1.5%-4.2%+1.0%-5.7%+0.7%-20.1%37%Mild Up / Medium (15-25)+3%
2019-10-30
Wednesday
+11.6%-3.1%-2.3%+2.1%-1.5%+4.5%-8.3%37%Strong Up / Low (<15)+13%
2019-08-05
Monday
+7.8%+4.3%+7.3%-1.1%+11.2%+19.6%+3.7%39%Mild Down / Medium (15-25)+2%
2019-05-06
Monday
+0.2%-4.1%-6.1%-7.0%-9.3%-3.9%-18.1%20%Mild Down / Medium (15-25)+8%
2019-01-29
Tuesday
+13.9%+3.0%+4.9%+0.8%+9.2%+17.1%+0.9%45%Sideways / Medium (15-25)+11%
2018-10-29
Monday
-15.5%+4.0%+7.6%+1.0%+6.0%+15.7%+2.2%35%Strong Down / Medium (15-25)+11%
2018-07-30
Monday
+3.7%+5.3%+10.5%+0.7%+0.7%+15.2%+2.6%27%Mild Up / Low (<15)+5%
2018-04-26
Thursday
-5.4%+0.7%+1.3%+0.8%+11.9%+14.2%-1.8%39%Sideways / Medium (15-25)+2%
2018-01-25
Thursday
+5.0%-1.9%+0.3%-2.0%-2.1%+2.3%-15.0%27%Strong Up / Low (<15)+14%
2017-10-26
Thursday
+3.8%-0.6%-0.7%-1.6%-2.2%+1.1%-7.1%16%Strong Up / Low (<15)+10%
2017-07-27
Thursday
+4.4%-2.2%-5.5%-5.8%-3.7%-2.0%-12.0%22%Mild Up / Low (<15)+3%
2017-04-27
Thursday
+8.5%-3.2%-5.2%+2.6%+7.3%+2.0%-5.9%18%Sideways / Low (<15)+5%
2017-01-26
Thursday
+4.0%+3.3%+3.5%+1.4%+5.5%+9.8%+1.6%18%Mild Down / Low (<15)+9%
2016-10-20
Thursday
+3.6%+4.2%+2.3%+1.5%+8.1%+11.7%+1.2%15%Mild Up / Low (<15)+12%
2016-07-28
Thursday
+7.5%-0.3%-2.2%+1.4%-10.4%+0.2%-13.0%13%Strong Up / Low (<15)+25%
2016-04-26
Tuesday
-0.7%-0.8%+0.5%-3.6%-1.0%+0.6%-5.6%8%Mild Up / Low (<15)+17%
2016-01-28
Thursday
-6.4%+1.3%+2.4%-0.2%+2.3%+5.0%-4.0%22%Strong Down / Medium (15-25)+22%
2015-10-21
Wednesday
1+33.6%-0.9%+1.4%+1.4%+4.2%+5.8%-0.9%61%Strong Up / Medium (15-25)+26%
2015-07-30
Thursday
-8.3%-1.8%+1.9%-2.1%-5.6%+4.6%-12.8%26%Sideways / Low (<15)+9%
2015-04-23
Thursday
+0.8%-0.2%-1.6%-0.1%+1.3%+1.6%-3.5%18%Mild Up / Low (<15)+11%
2015-01-22
Thursday
-1.7%-6.2%-8.1%-2.8%+0.4%-4.9%-15.1%25%Sideways / Medium (15-25)+32%
Methodology: reaction day = first trading day after the report (AMC assumed). Regimes are 20-trading-day returns (NVDA/SPY/SOX) and VIX close on the report date. Historical implied volatility before our options-DB coverage window (Nov 2025) is NOT reconstructed — realized volatility (HV20) is shown instead. Options strategy P&L and IV crush are priced from OUR OWN stored option chains (one row per contract per pull) for every cycle inside coverage; both sections grow automatically each quarter. Buckets with n<10 are exploratory. Correlation is not causation; small samples dominate the pre-announcement analysis. Pre-announcement registry: screeners/earnings_analysis/preannouncements_KLAC.json.
Automated, data-driven · educational only · not financial advice.